Get Free 2011 CHEVROLET SILVERADO V8, 6.6L; OHV; 32V; DI; Diesel; Turbo TSBs

Released 12/10/2018
Information on Available BCM Calibrations to Restore Bulb Outage Detection on Vehicles Produced by a Second Stage Manufacturer (Upfitter), Turn Signals Flash Fast after Factory Box Removed

Released 3/12/2018
Normal Characteristic - Sag Or Hesitation On Acceleration

Released 3/9/2018
Customer Satisfaction Program - Vehicle Communication Interface Module (VCIM) Programming Not Completed

Released 3/5/2018
Fleet Key Option - Adding Keys / Converting

Released 2/28/2018
Red LED, No WiFi Operation, and/or Limited OnStar Module Functionality After OnStar Module Replacement for Another Condition

Released 2/6/2018
Aftermarket Installed Service, Tool or Utility Box Sagging, Mis-aligned, Forward Box Mount Bracket Fractured on Trucks Equipped with Aftermarket Bodies

Released 2/2/2018
Information on Available BCM Calibrations to Restore Bulb Outage Detection on Vehicles Produced by a Second Stage Manufacturer (Upfitter), Turn Signals Flash Fast after Factory Box Removed

Released 12/4/2017
Engineering Information - California Only - Pilot Initiative - Urgent Service Action Required

Released 11/21/2017
Water / Dust Through Openings Under The Bed Rails Near The Stake Pockets Or Gap At Tailgate

Released 11/20/2017
Diagnostic Tip- Information for U0140 or U0073 (BCM Appears Off Line On The High Speed Buss)

Released 10/16/2017
Tailgate And Cargo Loop Capacity

Released 9/28/2017
Diagnostic Tip: OnStar Vehicles with B101D and Symptom Codes

Released 7/25/2017
Information on How to Prevent Inadvertent Vehicle Starting from Key Fob or OnStar Mobile Application

Released 7/14/2017
Click or Tick Noise on 3-4 Shift

Released 6/20/2017
Fuel Leak, Fuel Smell/Odor, Rubbing/Grinding/Clanking/Hitting/Banging/Popping/Thumping Noise from Under Vehicle, Fuel Gauge Reading Inaccurate

Released 5/16/2017
Tailgate and Cargo Loop Capacity

Released 5/16/2017
Brake Shudder While Towing Gooseneck and Fifth Wheel Trailers with Electric Brakes

Released 5/2/2017
Accessory Soft Tonneau Cover Loose

Released 5/1/2017
Revised Wheel Balancer Mounting Instructions (Heavy Duty Models Only)

Released 3/7/2017
Fleet Key Option - Adding Keys / Converting

Released 2/3/2017
Normal Characteristic - Tailgate Cable Slack

Released 2/1/2017
Normal Characteristic - Bump Feel Or Clunk Noise After A Stop

Released 12/19/2016
Information on Mounting Points for Pickup Box Accessories

Released 12/19/2016
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages

Released 11/16/2016
Diagnostic Tip for Excessive Smoke From Tail Pipe, DTC P2002 Set

Released 11/15/2016
Diagnostic Information for Supplemental Inflatable Restraint (SIR) System, Intermittent AIR BAG Indicator/Lamp Illuminated with DTC(s) B0012, B0013, B0015, B0016, B0019, B0020, B0022, B0023, B0026, B0033, B0040, B0042 or B0044 Set

Released 10/11/2016
Special Coverage Adjustment - Diesel-Emission-Reduction Fluid Tank

Released 9/30/2016
Intermittent MIL/Check Engine Light On, DTC P013B and P013D Set

Released 9/30/2016
Park Assist Blocked See Owners Manual Displayed in Driver Information Center (DIC)

Released 9/30/2016
Inadvertent Horn, Light, Remote Start, Lock/Unlock Activation or Charging Schedule Change

Released 9/30/2016
Rear Brake (Parking Brake) Does Not Release, Excessive Noise, Brake Drag, Brake Dust

Released 9/30/2016
Engine Oil Leak at Engine Oil Cooler Hose/Pipe Adapter to Engine Connection (Diagnose and Repair as Outlined)

Released 9/30/2016
Diagnostic Tips for Difficult to Resolve Tire/Wheel Vibration Concerns

Released 9/30/2016
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 9/30/2016
Rattle from Back of Cab While Driving Over Sharp Bumps

Released 9/30/2016
Information on USB Cable and Receptacle for Service

Released 9/30/2016
Service Theft Deterrent Message Displayed in Driver Information Center (DIC)

Released 9/30/2016
Diagnostic Tips for DTC P0796, Slip or No 4th, 5th or 6th Gear

Released 9/30/2016
Transfer Case Output Shaft Slinger and Seal Revision

Released 9/30/2016
Generation 9 OnStar Modules Inoperative, Bluetooth Inoperative and Possible Battery Discharge Condition

Released 9/30/2016
Information on USB Command and Control Multimedia Player Interface/List of Supported Devices

Released 9/30/2016
Engine Control Module DTC P2610 (Control Module Ignition Off Timer Performance) Setting Malfunction Indicator Lamp (MIL)

Released 9/30/2016
Appearance of Discoloration or Corrosion Near Edges/Openings on Chrome Bumpers

Released 9/30/2016
Information on USB Command and Control Multimedia Player Interface/List of Supported Apple Devices

Released 9/30/2016
Instrument Panel Cluster (IPC) Warning Lamps and/or MIL are Illuminated, Diesel Exhaust Fluid (DEF) Message Displayed, Various DTCs Set, Transmission May Not Shift or Defaults to Second Gear (Inspect Wiring Harnesses for Chafing, Connectors Not Fully Seat

Released 9/30/2016
Diagnosis and Repair HVAC Blower Function

Released 9/12/2016
Dent/Ripple Appearance Around Wheel Well Opening

Released 8/1/2016
Information on Diesel Exhaust Fluid (DEF)

Released 7/28/2016
Engine Misfire, Ticking/Knocking Noise, No Compression due to Piston Damage, Malfunction Indicator Lamp (MIL) Illuminated

Released 6/29/2016
Inner Door Panel Pull Handle Area Broken

Released 6/22/2016
Filling the Cooling System, Diagnosing and Replacing Leaking Cylinder Head Gaskets on a 6.6 Duramax Diesel

Released 5/27/2016
Emergency Vehicle Reduced Power

Released 5/2/2016
Duramax Diesel Hard Start, No Start, DTCs P0087, P0088, P0191, P128E or Injection Pump Replacement

Released 3/1/2016
2-MODE (HYBRID) Navigation Radio Will Not Display Current Hybrid Mode

Released 2/29/2016
Replacement Information for Broken T-Bolt on Negative and/or Positive Battery Cable Terminal

Released 2/19/2016
Ambient Temperature Display Not Reading Outside Temperature at Times or A/C Compressor Inoperative Due To Low Ambient Temperature

Released 2/9/2016
Cold Engine Tick Noise That May Last Up To 50 Seconds

Released 12/14/2015
Important - Accessories Available Through Integrated Business Partners

Released 12/14/2015
Diagnostic Tip - Exhaust Fluid Low - Exhaust Fluid Empty - Exhaust Fluid Range and Service Exhaust Fluid Messages Difficult To Reset - Including Cold Weather Operation

Released 11/12/2015
Information on Available BCM Calibrations to Restore Bulb Outage Detection on Vehicles Produced by a Second Stage Manufacturer (Upfitter), Turn Signals Flash Fast after Factory Box Removed

Released 11/6/2015
Diagnostic Tips for Reduced Acceleration at Low Speed and/or Transmission Slipping from a Launch, DTC P0751 Set

Released 11/4/2015
Disabling Or Removing CNG (Compressed Natural Gas) Fuel Systems

Released 10/31/2015
Reduced Heater Performance with Winter Grille Cover Installed

Released 10/31/2015
Diagnostic Tip for Vibration, Shudder or Roughness While Driving at Low Steady Speeds in V4 Mode

Released 10/31/2015
Inspect XM/Cellular Mobile Phone/OnStar Antenna for Looseness or Damage, XM/Cellular/OnStar Reception Performance Degraded, Rattle/Flutter/Squeak Noise, Wind Noise/Whistle at Highway Speeds, Water Leak on Headliner at Sunvisor

Released 10/31/2015
Engine Oil Consumption on Aluminum Block/Iron Block Engines with Active Fuel Management (AFM) (Install AFM Oil Deflector and Clean Carbon from Cylinder and/or Install Updated Valve Cover)

Released 10/31/2015
Inspect XM/Cellular Mobile Phone/OnStar Antenna for Looseness or Damage, XM/Cellular/OnStar Reception Performance Degraded, Rattle/Flutter/Squeak Noise, Wind Noise/Whistle at Highway Speeds, Water Leak on Headliner at Sunvisor

Released 10/31/2015
Information on Voltmeter Gauge Fluctuation Due to Regulated Voltage Control System and Concerns About Camper/Trailer Battery Charging

Released 10/31/2015
Dent/Ripple Appearance Around Wheel Well Opening

Released 10/31/2015
Normal Characteristic - Tailgate Cable Slack

Released 8/29/2015
Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting (U.S. and Canada Only)

Released 8/22/2015
Gauge Fluctuation, Various DTCs, Wiring Harness Chafing/Rubbing on A/C Line

Released 8/1/2015
Information for Identifying Non-GM ECM Calibration Use and Power-up Hardware Detection in Duramax Diesel Engines - Photograph Tech 2 Calibration IDs, Calibration Verification Numbers (CVNs) and Transmission Data Screen

Released 7/18/2015
Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting (U.S. and Canada Only)

Released 6/27/2015
Loss of High Speed GMLAN Communications, Intermittent No Crank, IP Gauge Fluctuation, Intermittent Door Lock Cycling / Chime Operation, Various IP Warning Lamps Illuminated, Transmission May Not Shift, Communication DTCs U0073, U0100, U0101, U0102, U0109,

Released 6/27/2015
SES Lamp With Camshaft Actuator Codes After SI Diagnosis Have Been Followed

Released 6/13/2015
Brake Shudder While Towing Gooseneck And Fifth Wheel Trailers With Electric Brakes

Released 6/1/2015
Revised Wheel Balancer Mounting Instructions (Heavy Duty Models Only)

Released 6/1/2015
Higher Than Expected Oil Consumption at 8600 GVW and Above

Released 6/1/2015
Engine Running with Key Off, Continuous Run - Sensing and Diagnostic Module (SDM), No Communication, Service Air Bag Light Illuminated, DTCs B1440, P0381 or P0650 (Install Diode to Solenoid/Relay)

Released 5/16/2015
Low Beam Headlamp Bulb Diagnosis/Replacement (Inspect Bulb and Connector)

Released 5/12/2015
Information on Higher Than Expected Oil Consumption

Released 5/12/2015
Customer Satisfaction - Rear Axle Grinding Noise, Vibration - Inspect Rear Axle

Released 5/2/2015
Various Vehicle Handling Concerns Suspension Noise Or Damaged Suspension Components Due To Vehicle Modifications

Released 4/25/2015
Inspect XM/Cellular Mobile Phone/OnStar Antenna for Looseness or Damage, XM/Cellular/OnStar Reception Performance Degraded, Rattle/Flutter/Squeak Noise, Wind Noise/Whistle at Highway Speeds, Water Leak on Headliner at Sunvisor

Released 4/11/2015
Malfunction Indicator Lamp (MIL) Illuminated, Fuel Tank Hard to Fill, DTCs P0442, P0446, P0455 or P0449 Set

Released 4/4/2015
Normal Characteristic - Tailgate Cable Slack

Released 3/28/2015
Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues

Released 11/13/2014
Normal Characteristic - Passenger Compartment Air Filter

Released 11/13/2014
6.6L Duramax Fuel Injection Pump Part Restriction

Released 11/11/2014
Speedometer Needle Accuracy Information

Released 11/11/2014
Intermittent Battery Draw Dead Battery Or HVAC Odor

Released 11/4/2014
Engine Oil Consumption on Aluminum Block/Iron Block Engines with Active Fuel Management (AFM) (Install AFM Oil Deflector and Clean Carbon from Cylinder and/or Install Updated Valve Cover)

Released 8/28/2014
Information on Diesel Exhaust Fluid (DEF) Filling Instructions, Frozen Tank Status and General Information

Released 8/26/2014
Information on Identifying Duramax Diesel Overpower Engine Breakdown/Non-Function Due to Aftermarket Power-Up Devices vs Non Overpower Engine Non-Function of Pistons, Cylinders, Valvetrain Components, DTC P003A or P111D Set

Released 8/15/2014
Duramax Diesel Airflow Leak Equivalency Ratio Or Induction System Leak Indication And P0101

Released 8/8/2014
Concerns Or Questions Regarding The Installation Of Dealer Installed Accessories

Released 8/7/2014
Check Trailer Wiring Message Displayed On DIC

Released 8/7/2014
Inside Rear View Mirror is Loose and/or Mirror Mounting Bracket Fell Off

Released 7/30/2014
DIC Message Press Check To Turn Off Motion Sensor

Released 7/17/2014
Dust Intruding into Cabin Interior

Released 7/17/2014
Bump Feeling When Shifting from Drive to Reverse at Heavy Throttle

Released 7/17/2014
Tapping, Clicking or Ticking Noise at Windshield Area (R and R Right and Left Windshield Side Reveal Moldings to Add Double Sided Tape)

Released 7/16/2014
Duramax Diesel Glow Plugs Difficult to Install Due to Carbon Buildup - New Glow Plug Bore Reamer Available

Released 7/15/2014
Service Hybrid System Message, MIL or Loss of Propulsion with DTC P1ABE, P0A7E or P0C32 Set

Released 7/14/2014
Powertrain and Various Electrical/Electronic Control Issues

Released 7/11/2014
Information Regarding A/C Service Valve Tethered Cap Requirements in the State of Idaho

Released 7/8/2014
Procedure For Emailing Global Diagnostic System 2 (GDS2) Session Log To

Released 6/19/2014
Radio Reprogramming Using Techline/Service Programming System (SPS) - Ensuring Correct Vehicle Selection

Released 6/5/2014
Water/Dust Through Openings Under The Bed Rails Near The Stake Pockets

Released 5/16/2014
DTC Symptom Byte Documentation

Released 5/8/2014
TAC 2ML70 (Two-Mode Hybrid) Transmission Restriction Process

Released 3/25/2014
Removing / Disabling Rear Park Assist RPO UD7

Released 2/6/2014
Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion (Clean and Resurface Wheel Bead Seat)

Released 2/1/2014
No Audio On Certain XM Radio Channels

Released 1/25/2014
Diagnostic Tip - Driver Or Passenger Door Module DTC B2555

Released 1/24/2014
Frame Labels Visible from Outside of Vehicle

Released 1/24/2014
GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period

Released 1/22/2014
GM Accessory Heated Seats Inoperative After Installation

Released 1/22/2014
Speedometer Needle Accuracy Information

Released 1/4/2014
Proper Wheel Installation and Wheel Torque Techniques

Released 11/26/2013
Normal Characteristic - EZ Lift Tailgate Operation

Released 11/25/2013
Various Concerns Related To The IP Backlighting, Cruise Control, Steering Wheel Controls, Horn

Released 10/18/2013
Sweeping Whine Noise Increase/Decrease from Audio System on Lower AM Band Stations

Released 10/4/2013
Diagnostic Tip: Diagnosing Vehicles with OnStar DTC B101D-37

Released 8/29/2013
Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting

Released 8/28/2013
Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting

Released 8/28/2013
Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting

Released 7/19/2013
Rear Door Exterior Paint Finish Chipped, Cracked or Scratched Along Rear Corner of Rear Side Door Reveal Molding

Released 6/25/2013
Swapping Outside Rearview Mirrors RPOs DL8 / DL3 / DPN

Released 6/19/2013
Correct Selection Of Labor Codes

Released 6/19/2013
Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire Pressure Monitor (TPM) System Message, Light and Customer Information

Released 6/19/2013
Information on Slight Vehicle Movement in Park at Start Up After Cold Soak

Released 6/19/2013
Global Information for GM dexos 1 and dexos 2 Engine Oil Specifications, Licensed Brands, and Service Fill

Released 6/19/2013
Repair Information for Reconnection of Rear Window Defroster (Defogger) Contact or Tab

Released 6/14/2013
Frame Labels Visible from Outside of Vehicle

Released 6/7/2013
Back Up Alarm Inoperative And Needs To Be Connected During PDI

Released 5/31/2013
Unexpected Loss of Radio Audio (Radio Goes Silent/No Sound) and Other Blackberry Phone - Bluetooth Issues

Released 4/23/2013
Odometer Servicing When The Odometer Cannot Be Set To The Actual Mileage

Released 4/12/2013
Information on Driveline Clunk Noise

Released 3/29/2013
Vehicle Software Enhancements

Released 3/22/2013
Vibration Analysis Worksheet

Released 3/1/2013
No Crank/No Start, Dead Battery Due to Parasitic Drain/Discharge

Released 3/1/2013
Paint-less Dent Repair Process

Released 2/17/2013
Tailgate Cable Slack

Released 2/15/2013
Windshield Wiper Performance, Cleaning Instructions and Maintenance

Released 2/15/2013
Information for Electrical Ground Repair - Use New Replacement Fasteners with Conductive Finish

Released 2/11/2013
Prior To Any Circuit Testing

Released 1/1/2013
Various Driveability Symptoms Due to Clogged Fuel Injectors, MIL/SES DTCs P0171, P0172, P0174, P0300, P1174, P1175 (Clean Fuel Injectors and/or Perform Injector Test With AFIT CH-47976)

Released 9/4/2012
Information on Normal Maintenance or Warranty Service for 4T40, 4T45, 4T65, 4L60 Automatic Transmission Oil Pan Magnet Upgrade

Released 9/4/2012
IPC Odometer Programming Method Quick Reference Guide

Released 5/19/2012
Aftermarket Installed Service, Tool or Utility Box Sagging, Mis-aligned, Forward Box Mount Bracket Fractured on Trucks Equipped with Aftermarket Bodies

Released 5/3/2012
Information on Tire Radial Force Variation (RFV)

Released 4/1/2012
Transmission Over Temperature, Malfunction Indicator Lamp (MIL) Illuminated, DTC U0101 Set (Inspect Transmission Cooler Lines)

Released 3/19/2012
Hem Flange Rust Repair

Released 1/19/2012
Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Parts Center

Released 1/19/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/19/2012
Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability

Released 1/14/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/13/2012
Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability

Released 1/13/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/13/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/12/2012
Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability

Released 11/27/2011
Loss of Communication with Allison TCM, Intermittent Transmission Hesitation, Reduced Torque, Range Inhibit, Clunk, Stuck in Gear or Neutral, Wont Shift, DTC P0880 and/or U0101 Set

Released 10/24/2011
Use of Surface Conditioning Disks When Cleaning Engine Gasket Sealing Surfaces and/or Reused Engine Parts

Released 10/22/2011
Warranty Code Generated By EL-50313 Midtronics GR8 Battery Tester/Charger Required for Claim Processing On Labor Operation 4041510 and Battery Part Restriction (North America ONLY)

Released 10/17/2011
Safety Belt Locking Conditions (Normal Operating Characteristics)

Released 10/13/2011
Eliminating Unwanted Odors in Vehicles

Released 8/1/2011
Proper Removal and Installation of Roof Console for any Related Service Repairs

Released 7/22/2011
Car and Truck Fix it Right the First Time Issues

Released 7/22/2011
Car and Truck Fix it Right the First Time Issues

Released 7/20/2011
Carpet Curling at Front Edge (Install Velcro Fastener)

Released 7/19/2011
Left or Right Outside Rearview Mirror Glass Shake or Flutter (Relearn Power Mirrors and Replace Mirror, if Necessary)

Released 7/15/2011
Key Code Security Rules and Information on GM KeyCode Look-Up Application (Canada Only)

Released 6/22/2011
Roof Panel Flutters or Rattle Noise from Roof or Headliner when Closing Doors (Apply Foam)

Released 6/10/2011
Squeak or Creak Noise from Underbody over Bumps (Replace Body Cables)

Released 6/7/2011
Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability

Released 5/13/2011
Instrument Panel (IP) HVAC Air Outlet Deflector Knob Chrome Insert Loose/Missing (Install Updated Design Chrome Insert)

Released 4/18/2011
Chrome Outside Door Handle Loose/Cracked at Attachment Screw (Replace Handle)

Released 4/18/2011
Sunshade (Sun Visor) Fails to Stay in Position (Re-seat Detent Spring)

Released 4/14/2011
New Vehicle Pre-Delivery Inspection (PDI) - Delivering Quality Vehicles and Generating Higher CSi Scores

Released 4/13/2011
Sticking/Binding Door Mounted Seat Switches (Align Switch)

Released 4/13/2011
Body Colored Side Moldings Dull, Discolored, Stained (Clean and Polish Moldings)

Released 4/12/2011
Underbody Pop or Clunk Type Noise While Turning or Driving on Uneven Road Surfaces (Install Body Mount Insulator)

Released 4/11/2011
Headliner Wet, Water Leak into Cab, Water Leak Past Sunroof Glass Weatherstrip/Seal (Inspect Sunroof Weatherstrip/Seal and Replace If Necessary)

Released 4/8/2011
Front Door Window Regulator Squeak Noise When Operated (Apply Lubricant)

Released 4/6/2011
Tapping, Clicking or Ticking Noise at Windshield Area (Rand R Right and Left Windshield Side Reveal Moldings to Add Double Sided Tape)

Released 4/6/2011
Left or Right Power Outside Mirror Inoperative (Inspect Wire Harness)

Released 4/6/2011
Passenger Side Air Bag Door Not Flush with Dash Pad/Warped (Reposition Locking Tabs on Air Bag Panel)

Released 4/6/2011
Front Seat Cushion Cover Becomes Detached (Add Push Pin Fasteners to J-Retainer)

Released 3/30/2011
Front and/or Rear Wheelhouse Panel Liner Wavy or Warped (Apply Heat and Reform Wheelhouse Panel Liner)

Released 3/24/2011
Information on Driver or Passenger Seat Head Restraint Concerns with Comfort, Custom Upholstery or Other Comfort Enhancing Devices

Released 3/21/2011
Car and Truck Fix it Right the First Time Issues

Released 3/8/2011
Excessive Wind Noise Coming from Rear Interior of Vehicle (Perform Repair as Outlined)

Released 3/1/2011
Paint-less Dent Repair Process

Released 2/24/2011
Properly Maintaining Vehicles in Dealer Inventory

Released 2/21/2011
Windshield Wiper Performance, Cleaning Instructions and Maintenance

Released 2/21/2011
Front Seat Cushion Cover Becomes Detached (Add Push Pin Fasteners to J-retainer)

Released 2/16/2011
Information on Body Mount Bolt Stripped or Will Not Loosen

Released 2/2/2011
Seat Belt Buckle Latching Issues and/or Seat Belt Warning Lights Illuminated

Released 1/13/2011
Driver or Passenger Heated Seat Inoperative, Slow to Warm, DTC(s) Set (Repair Connector, Re-Route Harness)

Released 1/4/2011
Roll Up Soft Tonneau Cover Appears Loose or Latch Not Functioning Properly (Adjust Upper Side Rail Clamps and/or Rails and/or Replace Rear Latch)

Released 12/23/2010
Information on Passenger Presence Sensing System (PPS or PSS) Concerns with Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices

Released 12/23/2010
One-Piece Hard Tonneau Cover Fits Loose on Vehicle or Rear Tonneau Latch Not Functioning Properly (Adjust Rear Latch and Align Tonneau Cover)

Released 12/21/2010
Warranty Information-Fascia Refinish Labor Operations

Released 11/22/2010
Information on Side Door Body Mounted Primary Weatherstrip Replacement

Released 11/19/2010
Application of Anti-Corrosion Materials

Released 10/21/2010
Safety Belt Locking Conditions (Normal Operating Characteristics)

Released 10/14/2010
Warranty Administration-Warranty Claims Submission-Outside Rearview Mirrors

Released 10/13/2010
Pass Side Air Bag Door Not Flush with Dash Pad/Warped (Reposition Lock Tabs on Panel)

Released 10/4/2010
Information on Mounting Points for Pickup Box Accessories

Released 9/14/2010
Car and Truck Fix It Right the First Time Issues

Released 9/10/2010
Distortion in Outer Surface of Vehicle Glass

Released 9/9/2010
Minor Wrinkles, Discoloration, Cuts on Seats with Leather, Vinyl or Cloth Seat Covers

Released 8/24/2010
EI08028-Intermittent, Inoperative Remote Keyless Entry (RKE) (Reprogram Key Fobs)

Released 7/27/2010
Tapping, Clicking or Ticking Noise at Windshield Area (R and R Right and Left Windshield Side Reveal Moldings to Add Double-Sided Tape)

Released 7/23/2010
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 7/14/2010
New Model Features and Service Guide

Released 6/30/2010
Information on Hem Flange Sealer for Corrosion Protection

Released 6/21/2010
Driver or Passenger Heated Seat Inoperative, Slow to Warm, DTC(s) Set (Repair Connector, Re-Route Harness)

Released 6/15/2010
Information on Adjusting Outside Rearview Mirrors

Released 6/15/2010
Information on Difficult to Install Fixed Radio Antenna Mast

Released 5/27/2010
Key Code Security Rules and Information on GM KeyCode Look-Up Application (Canada Only)

Released 5/27/2010
Key Code Security Rules and Information on GM KeyCode Look-Up Application (U.S. Only)

Released 4/28/2010
New Vehicle Pre-Delivery Inspection (PDI) - Delivering Quality Vehicles and Generating Higher CSi Scores

Released 4/27/2010
Interior Cleaning-Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer-Product Availability

Released 3/30/2010
Information on Proper Use of Floor Mats

Released 2/9/2010
2011 Model Year Light Duty Truck - Vehicle Identification Number (VIN) Structure Changes

Released 1/17/1997
Car and Truck Fix it Right the First Time Issues

Released 1/31/2017
Brake Pedal Moves Or Self Applies At Full Turns

Released 11/18/2016
(HYBRID) ABS Light On After Sequential Programming

Released 9/30/2016
Rear Brake (Parking Brake) Does Not Release, Excessive Noise, Brake Drag, Brake Dust

Released 9/22/2016
(Hybrid) 2-Mode GM TAC Part Restriction for EBCM & BPMV has ended

Released 9/14/2016
Service StabiliTrak Message Displayed in DIC, StabiliTrak Indicator Light On, DTC C0455 and/or C0710 Set

Released 5/11/2016
Brake Pedal Moves Or Self Applies At Full Turns

Released 5/3/2016
(Hybrid) 2-Mode GM TAC Part Restriction for EBCM & BPMV

Released 3/1/2016
2 MODE HYBRID Additional Information On Bleeding The Brakes

Released 1/25/2016
Service StabiliTrak Message Displayed in DIC, StabiliTrak Indicator Light On, DTC C0455 and/or C0710 Set

Released 10/31/2015
Product Safety - Chassis Electronic Control Module Internal Contamination

Released 6/13/2015
Brake Shudder While Towing Gooseneck And Fifth Wheel Trailers With Electric Brakes

Released 10/24/2013
Adding Integrated Trailer Brake Controller RPO JL1

Released 6/10/2013
Service Malfunction Indicator Light Or Service Anti-Lock Brake System Message Displayed In The Drivers Information Center

Released 3/22/2013
Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues

Released 1/19/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/14/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/13/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 8/17/2011
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 7/22/2011
Car and Truck Fix it Right the First Time Issues

Released 4/19/2011
Disc Brake Warranty Service and Procedures

Released 4/13/2011
Brake Induced Pulsation/Vibration Felt in Steering Wheel, Rumble Noise from Underbody During Downhill Descent (Verify Condition and Replace Front Brake Pads)

Released 3/21/2011
Car and Truck Fix it Right the First Time Issues

Released 11/9/2010
Procedure for Installation of an Aftermarket Trailer Brake Controller

Released 11/8/2010
Brake Induced Pulsation/Vibration Felt in Steering Wheel, Rumble Noise from Underbody During Downhill Descent (Verify Condition and Replace Front Brake Pads)

Released 7/23/2010
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 7/12/2010
Procedure for Installation of Aftermarket Trailer Brake Controller in Lieu of Factory Installed Integrated Trailer Brake Controller

Released 7/12/2010
Information on Auxiliary Power Wire at Trailer and Installation of Aftermarket Trailer Brake Controller - Towing, Tow

Released 1/17/1997
Car and Truck Fix it Right the First Time Issues

Released 3/7/2016
(Hybrid) Supplement To Generator Control Module (PIM) Cooling System Draining And Filling Procedure - keywords GCM inverter power replacement

Released 1/13/2016
Hybrid No Crank or Loss of High Speed Communications

Released 12/5/2014
New Tool Availability - EN-48974 - EGR Cooler Pressure Tester Adapter Set to Diagnose Duramax Diesel Engine EGR Cooler Engine Coolant Leaks into Combustion Chamber

Released 3/26/2012
Automatic Transmission Oil Cooler Flow Test Essential Tool J-45096 TransFlow

Released 8/29/2011
Engine Oil Leak at Engine Oil Cooler Hose/Pipe Adapter to Engine Connection (Duagnose and Repair as Outlined)

Released 7/26/2011
Coolant Leak at Surge Tank (Repair Leak/Replace Surge Tank)

Released 6/22/2011
Malfunction Indicator Lamp (MIL) Illuminated at Very Cold Ambient Temperatures when Using Engine Coolant Heater, DTC P0116 and/or P1400 Set (Relocate ECT Sensor and Engine Coolant Heater Cord)

Released 4/18/2011
New Tool Availability - EN-48974 - EGR Cooler Pressure Tester Adapter Set to Diagnose Duramax Diesel Engine EGR Cooler Engine Coolant Leaks into Combustion Chamber

Released 3/21/2011
Car and Truck Fix it Right the First Time Issues

Released 3/2/2011
Automatic Transmission Oil Cooler Flush and Flow Test Essential Tool J-45096 TransFlow

Released 10/27/2010
Engine Oil Leak at Engine Oil Cooler Hose/Pipe Adapter to Engine Connection (Diagnose and Repair as Outlined)

Released 7/23/2010
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 4/29/2010
Unnecessary Flushing Services, Additive Recommendations and Proper Utilization of GM Simplified Maintenance Schedule to Enhance Customer Service Experience

Released 2/2/2018
Information on Available BCM Calibrations to Restore Bulb Outage Detection on Vehicles Produced by a Second Stage Manufacturer (Upfitter), Turn Signals Flash Fast after Factory Box Removed

Released 11/20/2017
Diagnostic Tip- Information for U0140 or U0073 (BCM Appears Off Line On The High Speed Buss)

Released 7/25/2017
Information on How to Prevent Inadvertent Vehicle Starting from Key Fob or OnStar Mobile Application

Released 7/11/2017
SIR MIL With DTCs B0012 B0013 B0014 B0015 B0019 B0020 B0021 and/or B0022 (Aftermarket USB/Phone Charger)

Released 6/27/2017
Information on Available BCM Calibrations to Restore Bulb Outage Detection on Vehicles Produced by a Second Stage Manufacturer (Upfitter), Turn Signals Flash Fast after Factory Box Removed

Released 5/24/2017
Adding Cruise Control (RPO K34)

Released 5/11/2017
SIR MIL With DTCs B0012 B0013 B0014 B0015 B0019 B0020 B0021 and/or B0022 (Aftermarket USB/Phone Charger)

Released 3/15/2017
Speedometer Needle Accuracy Information

Released 11/15/2016
Diagnostic Information for Supplemental Inflatable Restraint (SIR) System, Intermittent AIR BAG Indicator/Lamp Illuminated with DTC(s) B0012, B0013, B0015, B0016, B0019, B0020, B0022, B0023, B0026, B0033, B0040, B0042 or B0044 Set

Released 11/2/2016
Cruise Control Inoperative (Inspect Circuit 6311)

Released 9/30/2016
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 9/30/2016
Service Theft Deterrent Message Displayed in Driver Information Center (DIC)

Released 9/30/2016
Diagnostic Information for Supplemental Inflatable Restraint (SIR) System, Intermittent AIR BAG Indicator/Lamp Illuminated with DTC(s) B0012, B0013, B0015, B0016, B0019, B0020, B0022, B0023, B0026, B0033, B0040, B0042 or B0044 Set

Released 9/30/2016
Engine Control Module DTC P2610 (Control Module Ignition Off Timer Performance) Setting Malfunction Indicator Lamp (MIL)

Released 9/30/2016
Instrument Panel Cluster (IPC) Warning Lamps and/or MIL are Illuminated, Diesel Exhaust Fluid (DEF) Message Displayed, Various DTCs Set, Transmission May Not Shift or Defaults to Second Gear (Inspect Wiring Harnesses for Chafing, Connectors Not Fully Seat

Released 9/19/2016
Hybrid 2-Mode Vehicle Stalls on Auto Start DTC P0BBD

Released 8/30/2016
(Hybrid) High Voltage 2-Mode Battery Parts Restriction-TAC has Ended

Released 6/10/2016
Hybrid No Crank With DTC B009F or Service Hybrid message with no codes

Released 6/3/2016
TAC Part Restriction Ended - Drive Motor Generator Control Module (PIM)

Released 4/6/2016
Drive Motor Generator Control Module (PIM) Part Restriction

Released 4/4/2016
2-Mode (Hybrid) TAC APM Part Restriction has ended

Released 3/24/2016
Service Charging System Message / SES MIL / P0621 and/or P0622

Released 3/14/2016
Hybrid No Crank With Multiple Diagnostic Codes

Released 3/2/2016
2 MODE HYBRID Vehicle Stalls When Shifted Out Of Park

Released 2/29/2016
Replacement Information for Broken T-Bolt on Negative and/or Positive Battery Cable Terminal

Released 1/13/2016
Hybrid No Crank or Loss of High Speed Communications

Released 11/12/2015
Information on Available BCM Calibrations to Restore Bulb Outage Detection on Vehicles Produced by a Second Stage Manufacturer (Upfitter), Turn Signals Flash Fast after Factory Box Removed

Released 10/31/2015
Drive Motor Generator Control Module (PIM) Part Restriction

Released 10/31/2015
Low Beam Headlamp Bulb Diagnosis/Replacement (Inspect Bulb and Connector)

Released 10/31/2015
Information on Voltmeter Gauge Fluctuation Due to Regulated Voltage Control System and Concerns About Camper/Trailer Battery Charging

Released 10/31/2015
Poor Radio Hands-free Voice Recognition Performance or Sound Quality After OnStar Upgrade

Released 7/18/2015
Diagnostic Tips - Diagnosing High Speed LAN Concerns

Released 7/4/2015
Diagnostic Tip - Security Light On Intermittently / No Crank/No Start Or Start Stall And Keyless Access Vehicles May Display No Remote/Fob Detected

Released 6/27/2015
Loss of High Speed GMLAN Communications, Intermittent No Crank, IP Gauge Fluctuation, Intermittent Door Lock Cycling / Chime Operation, Various IP Warning Lamps Illuminated, Transmission May Not Shift, Communication DTCs U0073, U0100, U0101, U0102, U0109,

Released 6/20/2015
(Hybrid) Emergency First Responder Information

Released 6/1/2015
Special Coverage Adjustment - Accessory Power Module May Not Initialize in Cold Temperature

Released 6/1/2015
Engine Running with Key Off, Continuous Run - Sensing and Diagnostic Module (SDM), No Communication, Service Air Bag Light Illuminated, DTCs B1440, P0381 or P0650 (Install Diode to Solenoid/Relay)

Released 4/25/2015
Diagnostic Tip - Vehicle Start And Stalls After Theft Deterrent Module Replacement

Released 3/28/2015
Special Coverage Adjustment - Nitrogen Oxide (NOx) Sensor

Released 3/28/2015
Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues

Released 3/7/2015
Installation of Electrical Aftermarket Accessories-Battery, Ignition and Ground Feeds-Do Not Splice into Wiring Harness (Install Diode to Solenoid/Relay to Suppress Voltage Spikes)

Released 1/1/2015
Radio Does Not Mute Enough When OnStar Turn-By-Turn Navigation Directions Are Announced (Increase Volume Setting or Request Soft Mute Feature Change Through OnStar Customer Service)

Released 10/17/2014
2-Mode (Hybrid) TAC APM Part Restriction - Loss of Power Steering Assist After Cold Soak in Cold Ambient Temperatures - Service Power Steering Message Or Service Hybrid System Message Displayed - Charging System Light On

Released 9/23/2014
Roof Beacon Inoperative (Switch Disconnected)

Released 8/22/2014
Product Safety - Auxiliary Battery

Released 8/8/2014
Concerns Or Questions Regarding The Installation Of Dealer Installed Accessories

Released 8/7/2014
Check Trailer Wiring Message Displayed On DIC

Released 8/6/2014
Puddle Light Operation

Released 7/30/2014
DIC Message Press Check To Turn Off Motion Sensor

Released 7/17/2014
Accessory Power Outlet and Trailer Lighting Fuse Replacement - Use GLC Labor Operation 5430130 Fuse Replacement

Released 7/16/2014
SES Light Reduced Engine Power Mode and APP Sensor DTCs

Released 7/15/2014
Service Hybrid System Message, MIL or Loss of Propulsion with DTC P1ABE, P0A7E or P0C32 Set

Released 7/14/2014
Powertrain and Various Electrical/Electronic Control Issues

Released 6/19/2014
Radio Reprogramming Using Techline/Service Programming System (SPS) - Ensuring Correct Vehicle Selection

Released 6/3/2014
DTCs P0601 P0603 P0604 P062F or P1621 (Stored In The TCM)

Released 5/29/2014
Service Charging System Message Or Low Volt Gauge Reading After Cold Start

Released 5/16/2014
DTC Symptom Byte Documentation

Released 3/25/2014
Removing / Disabling Rear Park Assist RPO UD7

Released 2/1/2014
No Audio On Certain XM Radio Channels

Released 1/25/2014
Diagnostic Tip - Driver Or Passenger Door Module DTC B2555

Released 1/22/2014
GM Accessory Heated Seats Inoperative After Installation

Released 1/22/2014
Speedometer Needle Accuracy Information

Released 1/16/2014
Service Charging System Message Or Low Volt Gauge Reading After Cold Start

Released 1/8/2014
Passenger Air Bag And Seat Belt Indicator / Switch Information

Released 1/8/2014
Aftermarket Back Up Alarm Sounds When Using RKE To Unlock Doors

Released 11/25/2013
Various Concerns Related To The IP Backlighting, Cruise Control, Steering Wheel Controls, Horn

Released 10/25/2013
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages

Released 10/25/2013
Normal Characteristic - RKE Inoperative/Unable To Program Fobs

Released 10/18/2013
Sweeping Whine Noise Increase/Decrease from Audio System on Lower AM Band Stations

Released 10/16/2013
Diagnosing / Troubleshooting Multiple Electrical Concerns / Intermittent No Crank / Or DTC C0900

Released 10/5/2013
OnStar Will Not Power Up

Released 10/2/2013
Adding Cruise Control (RPO K34)

Released 9/14/2013
OnStar Will Not Power Up

Released 9/13/2013
Bump Feeling When Shifting from Drive to Reverse, Harsh Shifts into Reverse

Released 6/25/2013
Swapping Outside Rearview Mirrors RPOs DL8 / DL3 / DPN

Released 6/19/2013
Information on Slight Vehicle Movement in Park at Start Up After Cold Soak

Released 6/19/2013
Global Information for GM dexos 1 and dexos 2 Engine Oil Specifications, Licensed Brands, and Service Fill

Released 6/19/2013
Repair Information for Reconnection of Rear Window Defroster (Defogger) Contact or Tab

Released 6/7/2013
Back Up Alarm Inoperative And Needs To Be Connected During PDI

Released 5/31/2013
Unexpected Loss of Radio Audio (Radio Goes Silent/No Sound) and Other Blackberry Phone - Bluetooth Issues

Released 4/23/2013
Odometer Servicing When The Odometer Cannot Be Set To The Actual Mileage

Released 4/12/2013
Information on Driveline Clunk Noise

Released 3/29/2013
Vehicle Software Enhancements

Released 3/29/2013
Accessory Power Outlet and Trailer Lighting Fuse Replacement Labor Operation N1720 Fuse Replacement

Released 3/29/2013
Powertrain and Various Electrical/Electronic Control Issues

Released 3/22/2013
OnStar Will Not Power Up

Released 3/22/2013
Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues

Released 3/22/2013
Vibration Analysis Worksheet

Released 3/1/2013
No Crank/No Start, Dead Battery Due to Parasitic Drain/Discharge

Released 3/1/2013
Paint-less Dent Repair Process

Released 3/1/2013
DVD Navigation Update Program, Navigation Disc Diagnostic Aid, AVN Software Update Discs and Ordering Information

Released 2/15/2013
Windshield Wiper Performance, Cleaning Instructions and Maintenance

Released 2/15/2013
Information for Electrical Ground Repair - Use New Replacement Fasteners with Conductive Finish

Released 2/11/2013
Prior To Any Circuit Testing

Released 1/11/2013
No Crank/No Start, Dead Battery Due to Parasitic Drain/Discharge

Released 1/1/2013
Accessory Power Outlet and Trailer Lighting Fuse Replacement Labor Operation N1720 Fuse Replacement

Released 1/1/2013
IPC Odometer Programming Method Quick Reference Guide

Released 12/17/2012
Checking Smartphone Bluetooth Software Update Status

Released 5/8/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 3/5/2012
Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules (VCIM)

Released 3/3/2012
Warranty, SPS, Control Module Diagnostics and Configuration Information, Programming, Set-Up

Released 2/10/2012
Service Programming System (SPS) Errors (E4398, E4399, E4403, E4404 E4413, E4414, E4423 or E4491, E4494)

Released 1/19/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/14/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/13/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/13/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 10/22/2011
Warranty Code Generated By EL-50313 Midtronics GR8 Battery Tester/Charger Required for Claim Processing On Labor Operation 4041510 and Battery Part Restriction (North America ONLY)

Released 8/22/2011
Installation of Electrical Aftermarket Accessories on 2-Mode Hybrid Full Size Trucks

Released 8/17/2011
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 8/17/2011
Information on Body Control Module (BCM) Grounds

Released 7/22/2011
Car and Truck Fix it Right the First Time Issues

Released 6/22/2011
MIL Illuminated, Heated Oxygen Sensor (HO2S) Bank 2, Sensor 2 Wire Rub, Chaffing on Top of Frame Rail, DTCs P0056, P0060, P013C, P013D, P014A, P014B, P0157, P0158, P0160, P0161, P0430, P2272, P2273)

Released 6/9/2011
Information on Difficult to Install Fixed Radio Antenna Mast

Released 6/6/2011
Information for Electrical Ground Repair - Use New Replacement Fasteners with Conductive Finish

Released 5/26/2011
Loss of High Speed GMLAN Communications, Intermittent No Crank, IP Gauge Fluctuation, Intermittent Door Lock Cycling / Chime Operation, Various IP Warning Lamps Illuminated, Trans May Not Shift

Released 5/25/2011
Air Bag Warning Lamp Illuminated, Repeat History DTC B0083 0F - B0088 0F (Follow SI and Procedure Outlined Below, if Necessary)

Released 5/19/2011
IPC Odometer Programming Method Quick Reference Guide

Released 5/13/2011
Headlamp, Tail Lamp or Fog/Driving Lamp Damage

Released 4/8/2011
Installation of Electrical Aftermarket Accessories-Battery, Ignition and Ground Feeds-Do Not Splace into Wiring Harness (Install Diode to Solenoid/Relay to Suppress Voltage Spikes)

Released 3/24/2011
Hybrid Two-Mode High Voltage Battery Parts Restriction

Released 3/21/2011
Car and Truck Fix it Right the First Time Issues

Released 3/17/2011
Air Bag Warning Lamp Illuminated, Repeat History DTC B0083 0F-B0088 0F (Follow SI and Procedure Outlined Below if Necessary)

Released 2/24/2011
Properly Maintaining Vehicles in Dealer Inventory

Released 2/2/2011
Seat Belt Buckle Latching Issues and/or Seat Belt Warning Lights Illuminated

Released 1/24/2011
Low Beam Headlamp Bulb Diagnosis/Replacement (Inspect Bulb and Connector)

Released 1/18/2011
Installation of Electrical Aftermarket Accessories on 2-mode Hybrid Full Size Trucks

Released 1/5/2011
Exterior Lamp Condensation and Replacement Guidelines

Released 12/23/2010
OnStar Phone Number Concerns (Phone Number Incorrect/Assigned to Another Vehicle/Phone) That Occur During Diagnosis of OnStar System

Released 12/8/2010
Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Messages or DTCs Set by Various Control Modules-Diagnosing and Repairing Fretting Corrosion

Released 12/6/2010
IPC Odometer Programming Method Quick Reference Guide

Released 11/11/2010
Information on BCM Calibrations Available to Restore Bulb Outage Detection on Vehicles Produced by Second Stage Manufacturer, Turn Signals Flash Fast after Factory Box Removed (Upfitter)

Released 10/25/2010
Information for Electrical Ground Repair - Use New Replacement Fasteners with Conductive Finish

Released 10/18/2010
Warranty Code Generated by El-50313/Charger Required for N0110, Battery Parts Rest

Released 9/14/2010
Car and Truck Fix It Right the First Time Issues

Released 8/23/2010
Parts Restriction on Ordering OnStar Generation 8 and Generation 9 Vehicle Communication Interface Modules (VCIM)

Released 8/6/2010
Low Beam Headlamp Bulb Diagnosis/Replacement (Inspect Bulb and Connector)

Released 7/27/2010
Installation of Electrical Aftermarket Accessories on 2-Mode Hybrid Full Size Trucks

Released 7/23/2010
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 7/21/2010
Information on Inspecting Top Post Battery Cable Bolts, Clamps and Nuts During Pre-Delivery Inspection (PDI)

Released 7/14/2010
New Model Features and Service Guide

Released 6/28/2010
Intermittent Malfunction Indicator Lamp (MIL) Illuminated, DTC P2138 with Reduced Engine Power (Repair Instrument Panel (IP) to Body Harness Connector)

Released 6/15/2010
Information on Adjusting Outside Rearview Mirrors

Released 6/11/2010
Information on Inappropriate Warranty Claims Submitted for Damaged Radios and Instrument Panel Clusters (IPCs)

Released 4/28/2010
New Vehicle Pre-Delivery Inspection (PDI) - Delivering Quality Vehicles and Generating Higher CSi Scores

Released 1/17/1997
Car and Truck Fix it Right the First Time Issues

Released 8/29/2017
Duramax Intermittent High Idle Or Elevated Idle Descriptions

Released 5/12/2017
Exhaust Smell in Cabin, Reduced Engine Power, Whistling and/or Hissing Type Noise Heard Underhood During Acceleration, or Service Engine Soon (SES) Light On, DTCs P0299 and/or P2263 Set

Released 4/24/2017
Information for Diesel Particulate Filter (DPF) Service Regeneration Documentation, Service Regeneration Will Not Run, Reduced Engine Power Message Displayed, DTC P2463 Set

Released 1/12/2017
Catalytic Converter Break-In Information to Prevent DTCs P0420 And/Or P0430

Released 12/23/2016
Rough Idle and/or Lack of Power on Acceleration after Cold Start - Possible Characteristic

Released 12/21/2016
Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared Message Displayed on DIC, DTC P2463 May Be Set

Released 12/19/2016
Information on Diesel Exhaust Fluid (DEF) Filling Instructions, Frozen Tank Status and General Information

Released 12/19/2016
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages

Released 12/12/2016
Duramax Intermittent High Idle Or Elevated Idle Descriptions

Released 10/28/2016
Diagnostic Tip - Diesel Exhaust Fluid System Contamination

Released 10/11/2016
Special Coverage Adjustment - Diesel-Emission-Reduction Fluid Tank

Released 9/30/2016
Intermittent MIL/Check Engine Light On, DTC P013B and P013D Set

Released 9/30/2016
Engine Control Module DTC P2610 (Control Module Ignition Off Timer Performance) Setting Malfunction Indicator Lamp (MIL)

Released 9/30/2016
Instrument Panel Cluster (IPC) Warning Lamps and/or MIL are Illuminated, Diesel Exhaust Fluid (DEF) Message Displayed, Various DTCs Set, Transmission May Not Shift or Defaults to Second Gear (Inspect Wiring Harnesses for Chafing, Connectors Not Fully Seat

Released 8/15/2016
Low Oil Pressure Message/Light - Inspect Valve Lifter Oil Filter

Released 8/1/2016
Information on Diesel Exhaust Fluid (DEF)

Released 5/27/2016
Emergency Vehicle Reduced Power

Released 4/12/2016
Customer Satisfaction - Emergency Vehicle Reduced Power

Released 3/3/2016
Diagnostic Tip - Exhaust Fluid Quality Poor Message Difficult To Clear

Released 2/2/2016
Duramax Intermittent High Idle Or Elevated Idle Descriptions

Released 1/29/2016
DTCs P0088 And P128E, After Fuel System Or Engine Repair

Released 12/14/2015
Diagnostic Tip - Exhaust Fluid Low - Exhaust Fluid Empty - Exhaust Fluid Range and Service Exhaust Fluid Messages Difficult To Reset - Including Cold Weather Operation

Released 10/31/2015
Diagnostic Tip - Exhaust Fluid Quality Poor Message Difficult To Clear

Released 10/31/2015
Special Coverage Adjustment - Nitrogen Oxide (NOx) Sensor

Released 10/31/2015
SES Lamp P0171 P0174

Released 6/1/2015
Additional Diagnostics For DTC P0420 And Or P24A0

Released 6/1/2015
Exhaust Fluid Quality Poor Message Displayed, Reductant Fluid Quality Test Status will Pass, Time Out, Fail or Interrupt

Released 4/11/2015
Malfunction Indicator Lamp (MIL) Illuminated, Fuel Tank Hard to Fill, DTCs P0442, P0446, P0455 or P0449 Set

Released 3/28/2015
Special Coverage Adjustment - Nitrogen Oxide (NOx) Sensor

Released 8/18/2014
Additional Diagnostics For DTC P0420 And Or P24A0

Released 8/15/2014
Duramax Intermittent High Idle Or Elevated Idle Descriptions

Released 7/14/2014
Powertrain and Various Electrical/Electronic Control Issues

Released 6/3/2014
DTCs P0601 P0603 P0604 P062F or P1621 (Stored In The TCM)

Released 5/14/2014
Catalytic Converter Break-In Information To Prevent DTCs P0420 And/Or P0430

Released 4/4/2014
Possible Engine Oil Leak Due To PCV Freeze-Up

Released 3/25/2014
Possible Engine Oil Leak Due To PCV Freeze-Up

Released 2/5/2014
Cold Engine Tick Noise That May Last Up To 50 Seconds

Released 1/31/2014
Cold Extended Crank - Rough Running - And/Or SES Light With DTCs P0172 And/Or P0175 - Check Fuel Alcohol Content

Released 1/3/2014
Special Coverage Adjustment - Throttle Position Sensor Replacement

Released 10/25/2013
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages

Released 9/16/2013
Exhaust Fluid Low - Exhaust Fluid Empty - Exhaust Fluid Range and Service Exhaust Fluid Messages Difficult To Reset - Including Cold Weather Operation

Released 9/11/2013
Exhaust Fluid Quality Poor Message Difficult To Clear

Released 3/22/2013
Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V6 and V8 Gasoline Engines Using Tech 2 or Global Diagnostic System 2 (GDS 2)

Released 2/1/2013
Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues

Released 9/4/2012
Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V8 Gasoline Engines Using Tech 2 or Global Diagnostic System 2 (GDS 2)

Released 3/3/2012
Warranty, SPS, Control Module Diagnostics and Configuration Information, Programming, Set-Up

Released 2/10/2012
Service Programming System (SPS) Errors (E4398, E4399, E4403, E4404 E4413, E4414, E4423 or E4491, E4494)

Released 1/19/2012
Information on Removing Seized Exhaust Temperature Sensors

Released 7/22/2011
Car and Truck Fix it Right the First Time Issues

Released 3/24/2011
Information on Diesel Exhaust Fluid (DEF) Filling Instructions, Frozen Tank Status and General Information

Released 3/21/2011
Car and Truck Fix it Right the First Time Issues

Released 2/7/2011
Malfunction Indicator Lamp (MIL) Illuminated, Poor Engine Performance with Low Power, DTC P0299, P0513, P0606, P0622, P207F, P20EE, P2202 and/or P22A0 Set (Reprogram Engine Control Module (ECM))

Released 8/6/2010
Information on Drilling High Strength Steel Related to Collision Repair

Released 7/14/2010
New Model Features and Service Guide

Released 1/17/1997
Car and Truck Fix it Right the First Time Issues

Released 11/16/2016
Diagnostic Tip for Excessive Smoke From Tail Pipe, DTC P2002 Set

Released 2/8/2016
Diagnostic Tip - Diesel Exhaust Fluid System Contamination

Released 12/22/2015
Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared Message Displayed on DIC, DTC P2463 May Be Set

Released 11/30/2015
Premature Catalytic Converter Failures

Released 10/31/2015
Diesel Oxidation Converter Part Restriction

Released 9/5/2015
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages

Released 7/25/2015
SES Lamp P0420

Released 7/18/2015
SES Lamp P0420

Released 7/12/2015
Special Coverage Adjustment - Diesel-Emission-Reduction Fluid Tank

Released 6/20/2015
Diagnostic Tip - Exhaust Fluid Low - Exhaust Fluid Empty - Exhaust Fluid Range and Service Exhaust Fluid Messages Difficult To Reset - Including Cold Weather Operation

Released 9/29/2014
Diesel Oxidation Converter Part Restriction

Released 9/18/2014
Diesel Oxidation Converter Part Restriction

Released 9/9/2014
Diesel Oxidation Converter Part Restriction

Released 8/28/2014
Information on Diesel Exhaust Fluid (DEF) Filling Instructions, Frozen Tank Status and General Information

Released 8/18/2014
Additional Diagnostics For DTC P0420 And Or P24A0

Released 8/15/2014
Exhaust Fluid Low - Exhaust Fluid Empty - Exhaust Fluid Range and Service Exhaust Fluid Messages Difficult To Reset - Including Cold Weather Operation

Released 8/13/2014
Exhaust Fluid Quality Poor Message Difficult To Clear

Released 6/4/2014
Diesel Oxidation Converter Part Restriction

Released 5/14/2014
Catalytic Converter Break-In Information To Prevent DTCs P0420 And/Or P0430

Released 5/2/2014
Service Exhaust Fluid System Message Displayed With DTCs P203D P21AB Or P21B0

Released 3/19/2014
Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared Message Displayed on DIC, DTC P2463 May Be Set

Released 2/5/2014
Cold Engine Tick Noise That May Last Up To 50 Seconds

Released 11/15/2013
Exhaust Leak or Vibration/Rattle Noise at Approximately 900 RPM, Fuel Smell, White Smoke, Oily Substance on Exhaust Downpipe

Released 10/25/2013
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages

Released 6/24/2013
Catalytic Converter Break-In Information To Prevent DTCs P0420 And/Or P0430

Released 2/1/2013
Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V6 and V8 Gasoline Engines Using Tech 2 or Global Diagnostic System 2 (GDS 2)

Released 1/1/2013
Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V8 Gasoline Engines Using Tech 2 or Global Diagnostic System 2 (GDS 2)

Released 12/24/2011
Exhaust Leak or Vibration/Rattle Noise at Approximately 900 RPM, Fuel Smell, White Smoke, Oily Substance on Exhaust Downpipe

Released 3/22/2011
Muffler Heat Shield Buzz During Operation (Perform Repair) or Exhaust Pinging/Popping/Snapping Noise During Cool Down, at Idle or After Vehicle Shut Off

Released 3/21/2011
Car and Truck Fix it Right the First Time Issues

Released 2/16/2011
Exhaust Moan/Vibration Noise (Install Exhaust System Flex Pipe Kit)

Released 2/4/2011
Exhaust Leak, Rattle, Rumble and/or Noise (Install New Clamp and Align Correctly)

Released 9/14/2010
Car and Truck Fix It Right the First Time Issues

Released 8/25/2010
Exhaust Leak, Rattle, Rumble and/or Noise (Install New Clamp and Align Correctly)

Released 7/14/2010
New Model Features and Service Guide

Released 2/1/2018
Exhaust Leak or Vibration/Rattle Noise at Approximately 900 RPM, Fuel Smell, White Smoke, Oily Substance on Exhaust Downpipe

Released 9/27/2017
Information on Diesel Fuel Additives

Released 7/25/2017
Information on How to Prevent Inadvertent Vehicle Starting from Key Fob or OnStar Mobile Application

Released 6/20/2017
Fuel Leak, Fuel Smell/Odor, Rubbing/Grinding/Clanking/Hitting/Banging/Popping/Thumping Noise from Under Vehicle, Fuel Gauge Reading Inaccurate

Released 3/7/2017
Fleet Key Option - Adding Keys / Converting

Released 2/20/2017
Customer Satisfaction Program - Vehicles with Key Codes Improperly Handled by Third Party

Released 2/1/2017
Normal Characteristic - Bump Feel Or Clunk Noise After A Stop

Released 11/3/2016
Information on Diesel Fuel Additives

Released 9/30/2016
Service Theft Deterrent Message Displayed in Driver Information Center (DIC)

Released 9/19/2016
Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Parts Center

Released 8/2/2016
Information on Diesel Fuel Additives

Released 7/12/2016
Diagnostic Tip - 6.6L Duramax Fuel System Contamination

Released 5/2/2016
Duramax Diesel Hard Start, No Start, DTCs P0087, P0088, P0191, P128E or Injection Pump Replacement

Released 4/21/2016
Normal Characteristic - Bump Feel Or Clunk Noise After A Stop

Released 4/1/2016
Information on Changes in Exhaust Tone for Active Fuel Management Engines When in Three or Four Cylinder Mode

Released 3/29/2016
Alternative Gaseous Fuel Systems on BI-Fuel, CNG and LPG Equipped Vehicles

Released 3/2/2016
2 MODE HYBRID Vehicle Stalls When Shifted Out Of Park

Released 1/27/2016
Alternative Gaseous Fuel Systems on BI-Fuel, CNG and LPG Equipped Vehicles

Released 11/25/2015
Normal Characteristic - Bump Feel Or Clunk Noise After A Stop

Released 11/4/2015
Disabling Or Removing CNG (Compressed Natural Gas) Fuel Systems

Released 10/31/2015
Product Safety - Ignition Lock Cylinder Binding

Released 10/31/2015
Service Parts Safety - Ignition Lock Cylinder Binding

Released 10/31/2015
Product Safety - Chassis Electronic Control Module Internal Contamination

Released 10/31/2015
Fuel Gauge Fluctuation in Park or Neutral

Released 10/31/2015
Exhaust Leak or Vibration/Rattle Noise at Approximately 900 RPM, Fuel Smell, White Smoke, Oily Substance on Exhaust Downpipe

Released 10/31/2015
Diesel Engine Hard Start When Hot

Released 7/12/2015
Special Coverage Adjustment - MIL Lamp On / Glow Plug Heater Inoperative

Released 6/20/2015
Special Coverage Adjustment - Indirect Fuel Injector Replacement

Released 6/13/2015
Duramax Diesel Hard Start No Start P0087 P0088 P0191 P128E Or Injection Pump Replacement

Released 6/13/2015
Lack Of Power On Initial Acceleration From A Stop When the Ambient Temperature Is 103F Or Greater (U.S.A. Dealers Only)

Released 5/2/2015
Product Safety - Ignition Lock Cylinder Binding

Released 4/11/2015
Product Safety - Ignition Lock Cylinder Binding

Released 3/14/2015
6.6L Duramax Fuel Injection Pump Part Restriction Has Ended

Released 11/13/2014
6.6L Duramax Fuel Injection Pump Part Restriction

Released 8/7/2014
Duramax Diesel Hard Start No Start P0087 P0088 P0191 P128E Or Injection Pump Replacement

Released 7/16/2014
Duramax Diesel Glow Plugs Difficult to Install Due to Carbon Buildup - New Glow Plug Bore Reamer Available

Released 7/16/2014
SES Light Reduced Engine Power Mode and APP Sensor DTCs

Released 6/19/2014
Diagnostic Tip - 2010 through 2015 6.6L Duramax Fuel System Contamination Identification

Released 6/4/2014
Diesel Oxidation Converter Part Restriction

Released 5/14/2014
Catalytic Converter Break-In Information To Prevent DTCs P0420 And/Or P0430

Released 3/28/2014
Normal Characteristic - Bump Feel Or Clunk Noise After A Stop

Released 1/17/2014
2010 Through 2013 6.6L Duramax Fuel Injection Pump Part Restriction

Released 11/18/2013
Diagnostic Tip - 2010 through 2014 6.6L Duramax Fuel System Contamination Identification

Released 11/15/2013
Exhaust Leak or Vibration/Rattle Noise at Approximately 900 RPM, Fuel Smell, White Smoke, Oily Substance on Exhaust Downpipe

Released 9/25/2013
Diagnostic Tip - 2010 through 2014 6.6L Duramax Fuel System Contamination Identification

Released 9/16/2013
Exhaust Fluid Low - Exhaust Fluid Empty - Exhaust Fluid Range and Service Exhaust Fluid Messages Difficult To Reset - Including Cold Weather Operation

Released 9/11/2013
Exhaust Fluid Quality Poor Message Difficult To Clear

Released 7/12/2013
2010 through 2013 6.6L Duramax Fuel Injection Pump Part Restriction

Released 1/1/2013
Various Driveability Symptoms Due to Clogged Fuel Injectors, MIL/SES DTCs P0171, P0172, P0174, P0300, P1174, P1175 (Clean Fuel Injectors and/or Perform Injector Test With AFIT CH-47976)

Released 1/19/2012
Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Parts Center

Released 1/19/2012
Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Parts Center

Released 1/19/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/14/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 7/22/2011
Car and Truck Fix it Right the First Time Issues

Released 7/15/2011
Key Code Security Rules and Information on GM KeyCode Look-Up Application (Canada Only)

Released 3/21/2011
Car and Truck Fix it Right the First Time Issues

Released 12/20/2010
Information on Duramax Turbo Air Intake Duct Service Clamp

Released 12/8/2010
General Motors Position Regarding the Environmental Protection Agencys Partial Waiver Announcement Allowing the Use of E 15 in MY 2007 and Newer Vehicles

Released 11/3/2010
Information on Duramax Turbo Vane Position Sensor

Released 10/27/2010
TOP TIER Detergent Gasoline Information and Available Brands (Deposits, Fuel Economy, No Start, Stall Concerns) Canada Only

Released 7/14/2010
New Model Features and Service Guide

Released 7/2/2010
Information on Vehicles Sitting Outside on Dealer Lots for Extended Periods of Time with Hard Start or Crank/No Start Condition

Released 4/29/2010
Unnecessary Flushing Services, Additive Recommendations and Proper Utilization of GM Simplified Maintenance Schedule to Enhance Customer Service Experience

Released 12/5/2015
Air Conditioning Odor (Install Evaporator Core Dryer Kit and Apply Cooling Coil Coating)

Released 10/31/2015
Reduced Heater Performance with Winter Grille Cover Installed

Released 11/13/2014
Normal Characteristic - Passenger Compartment Air Filter

Released 11/11/2014
Intermittent Battery Draw Dead Battery Or HVAC Odor

Released 7/17/2014
Dust Intruding into Cabin Interior

Released 7/11/2014
Information Regarding A/C Service Valve Tethered Cap Requirements in the State of Idaho

Released 10/13/2011
Eliminating Unwanted Odors in Vehicles

Released 8/10/2011
Air Conditioning Odor (Install Evaporator Core Dryer Kit and Apply Cooling Coil Coating)

Released 7/22/2011
Car and Truck Fix it Right the First Time Issues

Released 7/20/2011
Excessive Cabin Moisture / Reduced Window Clearing, Non Responsive HVAC Control (Reprogram HVAC System Control Module)

Released 5/13/2011
Instrument Panel (IP) HVAC Air Outlet Deflector Knob Chrome Insert Loose/Missing (Install Updated Design Chrome Insert)

Released 5/5/2011
Air Conditioning (A/C) Blows Warm Air Intermittently

Released 4/11/2011
Repair Information for Reconnection of Rear Window Defroster Contact or Tab

Released 3/21/2011
Car and Truck Fix it Right the First Time Issues

Released 2/28/2011
Excessive Cabin Moisture / Reduced Window Clearing (Reprogram HVAC System Control Module)

Released 1/13/2011
Driver or Passenger Heated Seat Inoperative, Slow to Warm, DTC(s) Set (Repair Connector, Re-Route Harness)

Released 12/23/2010
Information on Passenger Presence Sensing System (PPS or PSS) Concerns with Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices

Released 4/29/2010
Unnecessary Flushing Services, Additive Recommendations and Proper Utilization of GM Simplified Maintenance Schedule to Enhance Customer Service Experience

Released 6/25/2019
Use of Surface Conditioning Disks When Cleaning Gasket Sealing Surfaces and/or Reused Parts

Released 5/17/2019
Oil Life Monitor Engine Control Module Update

Released 3/12/2018
Normal Characteristic - Sag Or Hesitation On Acceleration

Released 3/5/2018
Elevated Idle/ PTO/ High Idle Are All Different Options

Released 8/31/2017
Information on CJ-4 or CK-4 Diesel Engine Oil

Released 8/29/2017
Duramax Intermittent High Idle Or Elevated Idle Descriptions

Released 7/14/2017
Click or Tick Noise on 3-4 Shift

Released 5/5/2017
45-65 MPH Vibration or Growl Noise

Released 3/24/2017
Normal Characteristic - Sag Or Hesitation On Acceleration

Released 3/1/2017
TAC 2ML70 (Two-Mode Hybrid) Transmission Restriction has ended

Released 12/23/2016
SES Light, Misfire, DTC P0300, and/or a Chirp, Squeak, Squeal, Or Tick Noise - Potential Valvetrain Concern

Released 12/23/2016
Rough Idle and/or Lack of Power on Acceleration after Cold Start - Possible Characteristic

Released 12/19/2016
Information on Diesel Engine Ticking Noise

Released 12/19/2016
New Tool Availability - EN-48974 - EGR Cooler Pressure Tester Adapter Set to Diagnose Duramax Diesel Engine EGR Cooler Engine Coolant Leaks into Combustion Chamber

Released 12/12/2016
Duramax Intermittent High Idle Or Elevated Idle Descriptions

Released 11/16/2016
Information on Higher Than Expected Oil Consumption

Released 11/16/2016
2-3 Upshift Slip or Flare

Released 10/3/2016
2010 through 2016 6.6L Duramax Diesel Engine (RPO Codes LGH and LML) Part Number 12638502 PQC Restriction Has Ended

Released 9/30/2016
Engine Oil Leak at Engine Oil Cooler Hose/Pipe Adapter to Engine Connection (Diagnose and Repair as Outlined)

Released 9/30/2016
Diagnostic Tips for DTC P0796, Slip or No 4th, 5th or 6th Gear

Released 9/30/2016
Transfer Case Output Shaft Slinger and Seal Revision

Released 9/30/2016
Engine Control Module DTC P2610 (Control Module Ignition Off Timer Performance) Setting Malfunction Indicator Lamp (MIL)

Released 9/23/2016
2010 through 2016 6.6L Duramax Diesel Engine (RPO Codes LGH and LML) Part Number 12638502 PQC Restriction Has Ended

Released 8/30/2016
Auxiliary Transmission Fluid Pump (ATFP) Control Module And Pump Parts Restriction has Ended

Released 8/15/2016
Low Oil Pressure Message/Light - Inspect Valve Lifter Oil Filter

Released 7/28/2016
Engine Misfire, Ticking/Knocking Noise, No Compression due to Piston Damage, Malfunction Indicator Lamp (MIL) Illuminated

Released 7/5/2016
Engine Misfire and No Compression due to Piston Damage

Released 6/22/2016
Filling the Cooling System, Diagnosing and Replacing Leaking Cylinder Head Gaskets on a 6.6 Duramax Diesel

Released 6/10/2016
SES Lamp P0521 Setting After An Oil Change And Or Low Oil Pressure Indicated On The Instrument Panel

Released 4/27/2016
No Reverse, No Second After Upper Valve Body Replacement

Released 4/22/2016
Crank No Start - Inspect for Sheared Cam Pin

Released 4/5/2016
Engine Knock on Cold Start

Released 3/16/2016
Tick Noise and/or Misfires on AFM Cylinders 1 4 6 And/or 7

Released 2/2/2016
Duramax Intermittent High Idle Or Elevated Idle Descriptions

Released 1/13/2016
Hybrid No Crank or Loss of High Speed Communications

Released 12/15/2015
Supplement To Service Information For Duramax Diesel Head Gasket Replacement

Released 11/6/2015
Diagnostic Tips for Reduced Acceleration at Low Speed and/or Transmission Slipping from a Launch, DTC P0751 Set

Released 10/31/2015
SES Lamp With Camshaft Actuator Codes After SI Diagnosis Have Been Followed

Released 10/31/2015
Tick Noise and/or Misfires On AFM Cylinders 1 4 6 and/or 7

Released 10/31/2015
Drive Motor Generator Control Module (PIM) Part Restriction

Released 10/31/2015
Product Safety - Chassis Electronic Control Module Internal Contamination

Released 10/31/2015
Diagnostic Tip for Vibration, Shudder or Roughness While Driving at Low Steady Speeds in V4 Mode

Released 10/31/2015
Crank No Start - Inspect for Sheared Cam Pin

Released 10/31/2015
Allison LCT1000 Clunk When Shifting Into Or Out Of Park or On Start Up In Park

Released 10/31/2015
Diagnostic Tips for Reduced Acceleration at Low Speed and/or Transmission Slipping from a Launch, DTC P0751 Set

Released 10/31/2015
Engine Oil Consumption on Aluminum Block/Iron Block Engines with Active Fuel Management (AFM) (Install AFM Oil Deflector and Clean Carbon from Cylinder and/or Install Updated Valve Cover)

Released 10/31/2015
Diesel Engine Hard Start When Hot

Released 10/31/2015
Engine and Automatic Transmission/Transaxle Identification

Released 8/29/2015
2010 through 2016 6.6L Duramax Diesel Engine (RPO Codes LGH and LML) Part Number 12638502 PQC Restriction

Released 8/22/2015
Gauge Fluctuation, Various DTCs, Wiring Harness Chafing/Rubbing on A/C Line

Released 8/15/2015
SES Lamp P0521 Setting After An Oil Change And Or Low Oil Pressure Indicated On The Instrument Panel

Released 8/1/2015
Information for Identifying Non-GM ECM Calibration Use and Power-up Hardware Detection in Duramax Diesel Engines - Photograph Tech 2 Calibration IDs, Calibration Verification Numbers (CVNs) and Transmission Data Screen

Released 7/18/2015
Low Oil Pressure Message/Light - Inspect Valve Lifter Oil Filter

Released 7/18/2015
Information - Service Parts Transfer Case Bolt Hole And Case Appearance

Released 6/27/2015
Loss of High Speed GMLAN Communications, Intermittent No Crank, IP Gauge Fluctuation, Intermittent Door Lock Cycling / Chime Operation, Various IP Warning Lamps Illuminated, Transmission May Not Shift, Communication DTCs U0073, U0100, U0101, U0102, U0109,

Released 6/13/2015
SES Lamp P0521 Setting After An Oil Change And Or Low Oil Pressure Indicated On The Instrument Panel

Released 6/6/2015
SES Lamp P0521 Setting After An Oil Change And Or Low Oil Pressure Indicated On The Instrument Panel

Released 6/1/2015
Diagnostic Tips for Reduced Acceleration at Low Speed and/or Transmission Slipping from a Launch, DTC P0751 Set

Released 6/1/2015
Higher Than Expected Oil Consumption at 8600 GVW and Above

Released 5/12/2015
Information on Higher Than Expected Oil Consumption

Released 5/12/2015
Customer Satisfaction - Rear Axle Grinding Noise, Vibration - Inspect Rear Axle

Released 5/12/2015
Supplement To Service Information For Duramax Diesel Head Gasket Replacement

Released 4/11/2015
Low Oil Pressure Message/Light - Inspect Valve Lifter Oil Filter

Released 3/28/2015
TAC 2ML70 (Two-Mode Hybrid) Transmission Restriction Process

Released 3/14/2015
SES Lamp P0521 Setting In Cold Ambient Temperatures

Released 8/26/2014
Information on Identifying Duramax Diesel Overpower Engine Breakdown/Non-Function Due to Aftermarket Power-Up Devices vs Non Overpower Engine Non-Function of Pistons, Cylinders, Valvetrain Components, DTC P003A or P111D Set

Released 8/15/2014
Duramax Intermittent High Idle Or Elevated Idle Descriptions

Released 7/17/2014
Bump Feeling When Shifting from Drive to Reverse at Heavy Throttle

Released 7/17/2014
Alleged Cylinders Out Of Round

Released 6/19/2014
Delayed Or No Drive And Or Delayed Or No Reverse With DTCs Range Inhibit

Released 6/11/2014
Duramax Diesel Engine Oil Pan Whine Noise

Released 6/10/2014
Delayed Or No Drive And Or Delayed Or No Reverse With DTCs Range Inhibit

Released 6/3/2014
DTCs P0601 P0603 P0604 P062F or P1621 (Stored In The TCM)

Released 5/14/2014
Catalytic Converter Break-In Information To Prevent DTCs P0420 And/Or P0430

Released 5/8/2014
TAC 2ML70 (Two-Mode Hybrid) Transmission Restriction Process

Released 4/4/2014
Possible Engine Oil Leak Due To PCV Freeze-Up

Released 3/25/2014
Possible Engine Oil Leak Due To PCV Freeze-Up

Released 3/8/2014
2010 through 2015 6.6L Duramax Diesel Engine (RPO Codes LGH and LML) Part Number 12638502 PQC Restriction

Released 2/26/2014
Poor Finish On Camshafts

Released 2/25/2014
Allison LCT1000 Clunk When Shifting Into Or Out Of Park Or On Start Up In Park

Released 2/25/2014
Crank No Start - Inspect for Sheared Cam Pin

Released 2/5/2014
Cold Engine Tick Noise That May Last Up To 50 Seconds

Released 1/23/2014
Crank No Start - Inspect for Sheared Cam Pin

Released 1/22/2014
Service 4 Wheel Drive Message C0569 After Transfer Case Related Repairs

Released 1/22/2014
Diagnostic Aids For Driveline Noise Or Vibration

Released 1/18/2014
Normal Characteristic - Sag Or Hesitation On Acceleration

Released 1/15/2014
Tick Noise And/Or Misfires On AFM Cylinders 1 4 6 And/or 7

Released 1/6/2014
Crank No Start - Inspect For Sheared Cam Pin

Released 11/8/2013
Duramax Intermittent High Idle Or Elevated Idle Descriptions

Released 10/16/2013
Diagnosing / Troubleshooting Multiple Electrical Concerns / Intermittent No Crank / Or DTC C0900

Released 10/4/2013
Allison LCT1000 Range Inhibit Or No Forward Reverse P0701 P0729 P0731 P0732 P0733 P0734 P0735 P0751 P0756 P0761 P0877 Or P2723 May Be Set

Released 10/4/2013
Diagnostic Tip: Diagnosing Vehicles with OnStar DTC B101D-37

Released 9/18/2013
Axle Lubricant Consolidation For Cars And Trucks

Released 9/13/2013
Bump Feeling When Shifting from Drive to Reverse, Harsh Shifts into Reverse

Released 8/29/2013
Duramax Diesel Engine Oil Pan Whine Noise

Released 8/12/2013
Slight Roughness at Idle with No DTCs - Possible Characteristic

Released 8/5/2013
SES Light, Misfire, DTC P0300, And/or A Chirp, Squeak, Squeal, Or Tick Noise - Potential Valvetrain Concern

Released 8/5/2013
Normal Characteristic - Sag Or Hesitation On Acceleration

Released 8/1/2013
Normal Characteristic - Sag Or Hesitation On Acceleration

Released 7/1/2013
Tick Noise And/or Misfires On AFM Cylinders 1 4 6 And/or 7

Released 6/24/2013
Catalytic Converter Break-In Information To Prevent DTCs P0420 And/Or P0430

Released 6/19/2013
Information on Slight Vehicle Movement in Park at Start Up After Cold Soak

Released 6/19/2013
Global Information for GM dexos 1 and dexos 2 Engine Oil Specifications, Licensed Brands, and Service Fill

Released 5/21/2013
GM TAC Support of Vehicle Vibration Complaints - U.S. Dealers Only

Released 4/12/2013
Information on Driveline Clunk Noise

Released 3/22/2013
Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues

Released 3/22/2013
Vibration Analysis Worksheet

Released 3/22/2013
Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V6 and V8 Gasoline Engines Using Tech 2 or Global Diagnostic System 2 (GDS 2)

Released 2/15/2013
Engine Surge Or Stall At Stop And Or DTC P0742 Possible TCC Applied

Released 2/1/2013
Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V6 and V8 Gasoline Engines Using Tech 2 or Global Diagnostic System 2 (GDS 2)

Released 1/1/2013
Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V8 Gasoline Engines Using Tech 2 or Global Diagnostic System 2 (GDS 2)

Released 9/4/2012
Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V8 Gasoline Engines Using Tech 2 or Global Diagnostic System 2 (GDS 2)

Released 9/4/2012
Information on Normal Maintenance or Warranty Service for 4T40, 4T45, 4T65, 4L60 Automatic Transmission Oil Pan Magnet Upgrade

Released 5/8/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 4/1/2012
Transmission Over Temperature, Malfunction Indicator Lamp (MIL) Illuminated, DTC U0101 Set (Inspect Transmission Cooler Lines)

Released 3/27/2012
Information on Diesel Engine Ticking Noise

Released 3/26/2012
Automatic Transmission Oil Cooler Flow Test Essential Tool J-45096 TransFlow

Released 3/5/2012
Warranty, SPS, Control Module Diagnostics and Configuration Information, Programming, Set-Up

Released 3/3/2012
Warranty, SPS, Control Module Diagnostics and Configuration Information, Programming, Set-Up

Released 1/19/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/14/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 11/27/2011
Loss of Communication with Allison TCM, Intermittent Transmission Hesitation, Reduced Torque, Range Inhibit, Clunk, Stuck in Gear or Neutral, Wont Shift, DTC P0880 and/or U0101 Set

Released 10/24/2011
Use of Surface Conditioning Disks When Cleaning Engine Gasket Sealing Surfaces and/or Reused Engine Parts

Released 10/2/2011
Information on Duramax Flywheel Housing Seals

Released 8/29/2011
Engine Oil Leak at Engine Oil Cooler Hose/Pipe Adapter to Engine Connection (Duagnose and Repair as Outlined)

Released 7/22/2011
Car and Truck Fix it Right the First Time Issues

Released 5/17/2011
Information on Slight Vehicle Movement in Park at Start Up After Cold Soak

Released 5/6/2011
Information on Driveline Clunk Noise when Shifting Between PARK and DRIVE, PARK and REVERSE or DRIVE and REVERSE

Released 4/28/2011
Information on Diesel Engine Ticking Noise

Released 4/18/2011
Chrome Outside Door Handle Loose/Cracked at Attachment Screw (Replace Handle)

Released 4/13/2011
Fluid/Oil Leak During Cold Weather from Transmission Vent (Perform Repair as Outlined Below)

Released 4/8/2011
Exchange Program for 2010-2011 Model Year 6.6L Duramax Diesel Engine (RPO LML and LGH) (U.S. and Canada Dealers Only)

Released 3/28/2011
Engine and Automatic Transmission/Transaxle Identification

Released 3/21/2011
Car and Truck Fix it Right the First Time Issues

Released 3/7/2011
Product Quality Center (PQC) for Engine, Transmission Assembly and Transfer Case Repalcement

Released 2/17/2011
4WD System Shift Performance in Cold Ambient Temperatures (Use Synthetic Fluid in Light Duty Front Axles with 8.5 Inch Ring Gears)

Released 2/9/2011
Active Fuel Management (AFM) Engine, Valve Lifter Tick Noise at Start Up When Engine Has Been Off for 2 Hours or More (Evaluate Noise and/or Replace Valve Lifters)

Released 2/7/2011
Identifying Non-GM ECM Calibration Usages for Duramax Diesel Engines and Power-up Hardware Detection

Released 2/7/2011
Fluid/Oil Leak During Cold Weather from Transmission Vent (Early Models-Replace Transmission Fluid Level Indicator and Install New Transmission Vent Assembly)

Released 12/15/2010
Manual Transmission Operating Characteristics

Released 11/18/2010
Information - Non-GM Parts and Accessories (Aftermarket)

Released 11/10/2010
WOT 4-5 Shift Flare or Tie Up with DTC P0733, P0777, P0735 or P2723 Stored, Intermittent Slip in Reverse (Inspect Seals, Replace Piston/Clutch Plates if Damaged)

Released 11/1/2010
Information on Water or Ethylene Glycol in Transmission Fluid

Released 10/27/2010
Engine Oil Leak at Engine Oil Cooler Hose/Pipe Adapter to Engine Connection (Diagnose and Repair as Outlined)

Released 9/14/2010
Car and Truck Fix It Right the First Time Issues

Released 8/6/2010
Information on Drilling High Strength Steel Related to Collision Repair

Released 7/23/2010
Information on Engine Ticking Noise

Released 7/23/2010
5.3L, 5.7L, 6.0L, 6.2L, 7.0L-Engine Oil Leak at Rear Cover Assembly Area (Engine Block Porosity RTV Repair Procedure)

Released 7/23/2010
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 7/14/2010
New Model Features and Service Guide

Released 6/30/2010
Exchange Program for 2010-2011 Model Year 6.6L Duramax Diesel Engine (RPO LML and LGH) (U.S. and Canadian Dealers Only)

Released 6/23/2010
Information on Duramax Flywheel Housing Seals

Released 4/29/2010
Unnecessary Flushing Services, Additive Recommendations and Proper Utilization of GM Simplified Maintenance Schedule to Enhance Customer Service Experience

Released 1/17/1997
Car and Truck Fix it Right the First Time Issues

Released 9/28/2017
Diagnostic Tip: OnStar Vehicles with B101D and Symptom Codes

Released 2/20/2017
Customer Satisfaction Program - Vehicles with Key Codes Improperly Handled by Third Party

Released 10/11/2016
Special Coverage Adjustment - Diesel-Emission-Reduction Fluid Tank

Released 5/27/2016
Emergency Vehicle Reduced Power

Released 10/31/2015
Product Safety - Ignition Lock Cylinder Binding

Released 10/31/2015
Service Parts Safety - Ignition Lock Cylinder Binding

Released 10/31/2015
Product Safety - Chassis Electronic Control Module Internal Contamination

Released 10/31/2015
Special Coverage Adjustment - Nitrogen Oxide (NOx) Sensor

Released 7/12/2015
Special Coverage Adjustment - Diesel-Emission-Reduction Fluid Tank

Released 6/20/2015
Special Coverage Adjustment - Indirect Fuel Injector Replacement

Released 6/1/2015
Special Coverage Adjustment - Accessory Power Module May Not Initialize in Cold Temperature

Released 5/12/2015
Customer Satisfaction - Rear Axle Grinding Noise, Vibration - Inspect Rear Axle

Released 5/2/2015
Product Safety - Ignition Lock Cylinder Binding

Released 4/11/2015
Product Safety - Ignition Lock Cylinder Binding

Released 8/22/2014
Product Safety - Auxiliary Battery

Released 6/25/2019
Clunking Noise from Rear of Vehicle (Re-torque Leaf Spring Bolts)

Released 1/17/2019
Questions Regarding Reducing Tire Pressures

Released 2/9/2018
Diagnostic Tip - Rattle Squeak Clunk Thump Bump Noise From Front Suspension

Released 12/11/2017
Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions

Released 12/8/2017
Squeak Noise from Rear of Vehicle (Lubricate Rear Leaf Springs)

Released 12/8/2017
Clunking Noise from Rear of Vehicle (Retorque Leaf Spring Bolts)

Released 11/21/2017
Tire Sidewall Irregularities

Released 7/25/2017
Squeak Noise from Rear of Vehicle (Lubricate Rear Leaf Springs)

Released 5/9/2017
Various Vehicle Handling Concerns Suspension Noise Or Damaged Suspension Components Due To Vehicle Modifications

Released 5/5/2017
45-65 MPH Vibration or Growl Noise

Released 5/1/2017
Revised Wheel Balancer Mounting Instructions (Heavy Duty Models Only)

Released 2/1/2017
Diagnostic Tip - Rattle Squeak Clunk Thump Bump Noise From Front Suspension

Released 9/30/2016
Diagnostic Tips for Difficult to Resolve Tire/Wheel Vibration Concerns

Released 8/16/2016
Various Vehicle Handling Concerns Suspension Noise Or Damaged Suspension Components Due To Vehicle Modifications

Released 7/19/2016
Squeak Noise from Rear of Vehicle (Lubricate Rear Leaf Springs)

Released 6/14/2016
Steering Wheel Vibration Or Customers Looking To Add Steering Stabilizer

Released 4/21/2016
45-65 MPH Vibration or Growl Noise

Released 4/12/2016
Clunking Noise from Rear of Vehicle (Retorque Leaf Spring Bolts)

Released 3/21/2016
Various Vehicle Handling Concerns Suspension Noise Or Damaged Suspension Components Due To Vehicle Modifications

Released 1/19/2016
Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions

Released 11/10/2015
Steering Wheel Vibration Or Customers Looking To Add Steering Stabilizer

Released 10/31/2015
Clunking Noise from Rear of Vehicle (Retorque Leaf Spring Bolts)

Released 10/31/2015
Diagnostic Tips: Vehicle Body Tilt Or Lean

Released 10/31/2015
Tire Sidewall Irregularities

Released 6/27/2015
Squeak Noise from Rear of Vehicle (Lubricate Rear Leaf Springs)

Released 6/1/2015
Revised Wheel Balancer Mounting Instructions (Heavy Duty Models Only)

Released 5/2/2015
Various Vehicle Handling Concerns Suspension Noise Or Damaged Suspension Components Due To Vehicle Modifications

Released 8/28/2014
Steering Wheel Vibration Or Customers Looking To Add Steering Stabilizer

Released 8/18/2014
Diagnostic Tip - Missing Alignment Dowel Pin

Released 8/6/2014
Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions

Released 7/30/2014
DIC Message Press Check To Turn Off Motion Sensor

Released 2/6/2014
Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion (Clean and Resurface Wheel Bead Seat)

Released 2/6/2014
Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel)

Released 2/6/2014
Information on Slight or Mild Tire Feathering and Recommended Practices (Normal Tire Wear Condition)

Released 1/22/2014
Diagnostic Aids For Driveline Noise Or Vibration

Released 1/4/2014
Proper Wheel Installation and Wheel Torque Techniques

Released 11/25/2013
Various Concerns Related To The IP Backlighting, Cruise Control, Steering Wheel Controls, Horn

Released 10/2/2013
Adding Cruise Control (RPO K34)

Released 6/21/2013
Revised Wheel Balancer Mounting Instructions (Heavy Duty Models Only)

Released 6/19/2013
Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire Pressure Monitor (TPM) System Message, Light and Customer Information

Released 6/7/2013
Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions

Released 5/21/2013
GM TAC Support of Vehicle Vibration Complaints - U.S. Dealers Only

Released 3/22/2013
Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues

Released 3/22/2013
Vibration Analysis Worksheet

Released 1/1/2013
Proper Wheel Installation and Wheel Torque Techniques

Released 5/17/2012
Information on Slight or Mild Tire Feathering and Recommended Practices (Normal Tire Wear Condition)

Released 5/8/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 5/3/2012
Information on Tire Radial Force Variation (RFV)

Released 3/27/2012
Hydraulic Power Steering System Leak - Required Diagnostic Actions

Released 1/23/2012
Hydraulic Power Steering System Leak - Required Diagnostic Actions

Released 1/19/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/14/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/13/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/13/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 12/3/2011
Information on Diagnosis and Replacement of Shock Absorber and Strut Due to Fluid Leak

Released 10/27/2011
Squeak Noise from Rear of Vehicle (Lubricate Rear Leaf Springs)

Released 7/22/2011
Car and Truck Fix it Right the First Time Issues

Released 6/28/2011
Rear Leaf Spring Slap or Clunk Noise (Replace Spring Inserts)

Released 6/14/2011
Squeak/Creak/Rumble or Rattle Noise Coming from Front of Vehicle During Low Speed Maneuvers in Cold Ambient Temperatures (Enlarge Upper Inside Diameter (ID) of Strut Jounce Bumper)

Released 4/21/2011
Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels

Released 4/14/2011
New Vehicle Pre-Delivery Inspection (PDI) - Delivering Quality Vehicles and Generating Higher CSi Scores

Released 4/13/2011
Clunking Noise from Rear of Vehicle (Retorque Leaf Spring Bolts)

Released 4/12/2011
Rattle Noise from Wheel or Hub Cap While Driving, Loose Wheel Nut Caps or Wheel Nut Caps May Not Tighten on Wheel Nuts (Inspect/Replace Wheel Nut Caps As Necessary)

Released 3/21/2011
General Motors New Vehicle Wheel Warranty Coverage

Released 3/21/2011
Car and Truck Fix it Right the First Time Issues

Released 3/17/2011
Refinishing Aluminum Wheels

Released 2/24/2011
Properly Maintaining Vehicles in Dealer Inventory

Released 12/13/2010
Guidelines for Using Labor Operations E0200, E0201, E0203, E0204 - Wheel Balance

Released 12/9/2010
Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles

Released 11/11/2010
Squeak Noise from Rear of Vehicle (Lubricate Rear Leaf Springs)

Released 11/3/2010
Squeak/Creak/Rumble or Rattle Noise from Front of Vehicle During Low Speed Maneuvers in Cold Ambient Temps (Enlarge Upper ID of Strut Jounce Bumper)

Released 10/13/2010
Information on Pitman Arm Shaft Seal Service Kit

Released 9/14/2010
Car and Truck Fix It Right the First Time Issues

Released 8/9/2010
20 Inch and 22 Inch Accessory Wheels Available Through GM Accessories

Released 7/29/2010
New Balancer Mounting Instructions for Aluminum Wheels (HD Models Only)

Released 7/23/2010
EI07032-Power Steering Fluid Leaking from Power Steering Gear/Rack Assembly (Engineering Recommendations/Engineering Information Closed)

Released 7/23/2010
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 7/23/2010
Installation and Programming for 20 Inch and 22 Inch Accessory Wheels (RPO RPP)

Released 7/14/2010
New Model Features and Service Guide

Released 6/21/2010
Information on Pitman Arm Shaft Seal Service Kit

Released 6/9/2010
Information on Proper Wheel Changing Procedures and Cautions

Released 6/7/2010
Guidelines for Using Labor Operations E2020 - Wheel Alignments, E2000 - Toe Adjust and E0200, E0201, E0203, E0204 - Wheel Balance

Released 5/19/2010
Warranty Administration - Labor Operation Z1111 - Suspected Tampering or Vehicle Modifications

Released 5/4/2010
Information on Tire Radial Force Variation (RFV)

Released 4/29/2010
Unnecessary Flushing Services, Additive Recommendations and Proper Utilization of GM Simplified Maintenance Schedule to Enhance Customer Service Experience

Released 4/28/2010
New Vehicle Pre-Delivery Inspection (PDI) - Delivering Quality Vehicles and Generating Higher CSi Scores

Released 4/27/2010
Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion (Clean and Resurface Wheel Bead Seat)

Released 4/27/2010
Low Tire Pressure, Leaking Cast Aluminum Wheels (Repair with Adhesive Sealant)

Released 4/27/2010
Use of Nitrogen Gas in Tires

Released 4/27/2010
Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire Pressure Monitor (TPM) System Message, Light and Customer Information

Released 4/27/2010
Tire Puncture Repair Procedures for All Cars and Light Duty Trucks

Released 4/26/2010
TPM System Overview, Diagnosing Tire Pressure Monitor System (TPM) Concerns and TPM Frequently Asked Questions (FAQ)

Released 4/13/2010
Revised GM of Canada New Vehicle Limited Warranty Tire Program and Global Warranty Management (GWM) Submission Rollout Information

Released 3/29/2010
Revised General Motors New Vehicle Tire Warranty Program and Global Warranty Management (GWM) Submission Rollout Information (U.S. Dealers Only)

Released 12/19/2016
New Tool Availability - EN-48974 - EGR Cooler Pressure Tester Adapter Set to Diagnose Duramax Diesel Engine EGR Cooler Engine Coolant Leaks into Combustion Chamber

Released 12/14/2016
Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information

Released 9/30/2016
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 9/30/2016
Information on USB Cable and Receptacle for Service

Released 7/18/2015
Diagnostic Tips - Diagnosing High Speed LAN Concerns

Released 12/5/2014
Information for Dealers on How to Submit a Product Information Report (PIR) (Canada Only)

Released 12/5/2014
New Tool Availability - EN-48974 - EGR Cooler Pressure Tester Adapter Set to Diagnose Duramax Diesel Engine EGR Cooler Engine Coolant Leaks into Combustion Chamber

Released 7/16/2014
Duramax Diesel Glow Plugs Difficult to Install Due to Carbon Buildup - New Glow Plug Bore Reamer Available

Released 7/8/2014
Procedure For Emailing Global Diagnostic System 2 (GDS2) Session Log To

Released 5/22/2014
Warranty Code Generated By EL-50313 Midtronics GR8 Battery Tester/Charger Required for Claim Processing On Labor Operation 4041510, 4041520 and 250 Mile/400 Km Labor Operation Restriction (North America ONLY)

Released 2/6/2014
Information on Slight or Mild Tire Feathering and Recommended Practices (Normal Tire Wear Condition)

Released 6/19/2013
Correct Selection Of Labor Codes

Released 6/7/2013
IPC Odometer Programming Method Quick Reference Guide

Released 5/21/2013
GM TAC Support of Vehicle Vibration Complaints - U.S. Dealers Only

Released 3/22/2013
Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V6 and V8 Gasoline Engines Using Tech 2 or Global Diagnostic System 2 (GDS 2)

Released 3/1/2013
Paint-less Dent Repair Process

Released 1/1/2013
IPC Odometer Programming Method Quick Reference Guide

Released 9/4/2012
GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period

Released 3/26/2012
Automatic Transmission Oil Cooler Flow Test Essential Tool J-45096 TransFlow

Released 3/19/2012
Hem Flange Rust Repair

Released 3/5/2012
Warranty, SPS, Control Module Diagnostics and Configuration Information, Programming, Set-Up

Released 3/5/2012
Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules (VCIM)

Released 1/13/2012
Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability

Released 10/24/2011
Use of Surface Conditioning Disks When Cleaning Engine Gasket Sealing Surfaces and/or Reused Engine Parts

Released 10/22/2011
Information for Dealers/Technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only)

Released 10/22/2011
Warranty Code Generated By EL-50313 Midtronics GR8 Battery Tester/Charger Required for Claim Processing On Labor Operation 4041510 and Battery Part Restriction (North America ONLY)

Released 8/17/2011
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 8/10/2011
Comeback Prevention Information and Using Customer Concern Verification Sheets (CCVS)

Released 7/22/2011
Clarification of Use - Dealer Empowerment Labor Operations and Customer Enthusiasm

Released 7/22/2011
Enhancing Field Product Reports with Digital Pictures

Released 6/17/2011
Improperly Formatted SI Screen Characters

Released 6/9/2011
Warranty Administration-Revised Customer Concern Not Duplicated (CCND)/Verified Labor Operation Numbers/How to Submit CCND Transactions in GWM / Elimination of E9995, J9993, J9994 and J9995

Released 5/23/2011
Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information

Released 5/19/2011
IPC Odometer Programming Method Quick Reference Guide

Released 5/9/2011
Information for Dealers on How to Submit a Product Information Report (PIR) (Canada Only)

Released 5/5/2011
Change in Product Field Action Customer Reimbursement Procedure (U.S. Dealers Only)

Released 4/18/2011
New Tool Availability - EN-48974 - EGR Cooler Pressure Tester Adapter Set to Diagnose Duramax Diesel Engine EGR Cooler Engine Coolant Leaks into Combustion Chamber

Released 4/18/2011
Warranty Administration - Courtesy Transportation and Roadside Assistance Programs

Released 4/13/2011
Warranty Parts Center (WPC) Special Part Request Enhancement - New Expedited Overnight Shipping Process and Form Information

Released 4/7/2011
Expediting Warranty Parts

Released 3/2/2011
Automatic Transmission Oil Cooler Flush and Flow Test Essential Tool J-45096 TransFlow

Released 2/16/2011
Information on Body Mount Bolt Stripped or Will Not Loosen

Released 2/3/2011
Expanded Customer Concern Not Duplicated (CCND)/Verified Labor Operation Numbers/How to Submit CCND Transactions in Global Warranty Management

Released 11/19/2010
Application of Anti-Corrosion Materials

Released 10/18/2010
Warranty Code Generated by El-50313/Charger Required for N0110, Battery Parts Rest

Released 10/13/2010
General Motors Dealership Critical Equipment Requirements and Recommendations

Released 9/2/2010
Engineering Information (EI) Process

Released 9/1/2010
Correct Selection Of Labor Codes

Released 8/23/2010
Parts Restriction on Ordering OnStar Generation 8 and Generation 9 Vehicle Communication Interface Modules (VCIM)

Released 8/6/2010
Information on Drilling High Strength Steel Related to Collision Repair

Released 7/30/2010
Electronic Exchange Program Changes

Released 7/29/2010
New Balancer Mounting Instructions for Aluminum Wheels (HD Models Only)

Released 7/23/2010
Service Guide, Unique Characteristics and Normal Operating Conditions for Two-Mode Hybrid Models

Released 7/14/2010
New Model Features and Service Guide

Released 7/1/2010
Out-of-Warranty Parts for Engineering Analysis

Released 6/17/2010
Free Agent Best Practices for HUMMER, Pontiac, Saab and Saturn Customers or Those Affected by Dealership Consolidation (U.S. Only) (SB10168)

Released 5/28/2010
Expediting Warranty Parts

Released 5/27/2010
Key Code Security Rules and Information on GM KeyCode Look-Up Application (Canada Only)

Released 5/26/2010
Warranty Admin - Warranty Claims Submission-Importance of GM Part Numbers and Parts with Date Codes

Released 5/21/2010
Improperly Formatted SI Screen Characters

Released 5/20/2010
Warranty Administration - Courtesy Transportation and Roadside Assistance Programs

Released 5/20/2010
Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information

Released 5/19/2010
Warranty Administration - Labor Operation Z1111 - Suspected Tampering or Vehicle Modifications

Released 5/18/2010
Information for Dealers on How to Submit a Field Product Report (FPR) (U.S. Dealers Only)

Released 5/17/2010
Information for Dealers on How to Submit a Product Information Report (PIR) (Canada Only)

Released 5/4/2010
Information on Tire Radial Force Variation (RFV)

Released 5/4/2010
Enhancing Field Product Reports with Digital Pictures

Released 5/3/2010
Warranty Administration-Revised Wiring Repair Labor Operations and Required Additional Information

Released 4/29/2010
Unnecessary Flushing Services, Additive Recommendations and Proper Utilization of GM Simplified Maintenance Schedule to Enhance Customer Service Experience

Released 4/26/2010
Required Return Criteria of Complete Electrical Center (EC) and Body Control Module (BCM) with Integrated Electrical Center to Warranty Parts Center (WPC)

Released 3/29/2010
Revised General Motors New Vehicle Tire Warranty Program and Global Warranty Management (GWM) Submission Rollout Information (U.S. Dealers Only)

Released 2/9/2010
2011 Model Year Light Duty Truck - Vehicle Identification Number (VIN) Structure Changes

Released 1/13/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 2/21/2011
Windshield Wiper Performance, Cleaning Instructions and Maintenance

Released 9/14/2010
Car and Truck Fix It Right the First Time Issues

Released 4/28/2010
New Vehicle Pre-Delivery Inspection (PDI) - Delivering Quality Vehicles and Generating Higher CSi Scores