Get Free 2012 GMC SIERRA V8, 6.6L; OHV; 32V; DI; Diesel; Turbo TSBs

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
Park Assist Blocked See Owners Manual Displayed in Driver Information Center (DIC)

Released 9/30/2016
Winter Cover Does Not Fit Correctly or Incorrect Part Number Provided with Truck

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
Inadvertent Horn, Light, Remote Start, Lock/Unlock Activation or Charging Schedule Change

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

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
Service Theft Deterrent Message Displayed in Driver Information Center (DIC)

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

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

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

Released 9/30/2016
DVD Playback, Road Learning, and OnStar Destination Download Improvements

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
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 4/22/2016
Harsh or Tie-Up Feeling from 6-4 Downshift

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
Product Safety - Chassis Electronic Control Module Internal Contamination

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

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

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
White, Milky or Cloudy Appearance of Front Differential Fluid

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
Normal Characteristic - Tailgate Cable Slack

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

Released 8/1/2015
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
Customer Satisfaction - Rear Axle Grinding Noise, Vibration - Inspect Rear Axle

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

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
6.6L Duramax Fuel Injection Pump Part Restriction

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

Released 11/11/2014
Speedometer Needle Accuracy Information

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 8/20/2014
Poor Remote Transmitter Range/Remote Start or TPM Indicator On, May or may not set one or more of the following DTCs: C0750, C0755, C0760, C0765

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
Inside Rear View Mirror is Loose and/or Mirror Mounting Bracket Fell Off

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

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

Released 7/17/2014
Duramax Fuel Temperature Sensor Contacts the Fuel Return Pipe After Pump Replacement

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

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 2/21/2014
Poor Voice Quality During Bluetooth Call or OnStar Personal Call

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 1/24/2014
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 1/4/2014
Loose Ground Terminal Repair and Proper Labor Code

Released 12/12/2013
PQC Restriction Allison A1000 Transmission Valve Body RPO MW7

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
Information on Slight Vehicle Movement in Park at Start Up After Cold Soak

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
Correct Selection Of Labor Codes

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
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 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 9/23/2011
Missing OnStar Owner Kit Integration in Vehicle Owner Manual

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 9/21/2016
Unwanted Grade Braking, Low Power, and/or Transmission Busy Shifting / P057B, P057C, and/or P057D

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 3/21/2016
Unwanted Grade Braking, Low Power, and/or Transmission Busy Shifting / P057B, P057C, and/or P057D

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 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 7/25/2014
Unwanted Grade Braking, Low Power, and/or Transmission Busy Shifting

Released 11/12/2013
SES MIL With DTC P057C And/Or P057D Or Cruise And Brake Light Operation Service Stability Message With DTC C0161 C0277 (Check X205 Connector)

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

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

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

Released 1/17/2012
Car and Truck Fix it Right the First Time Issues

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

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

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

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

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

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
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 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 8/20/2014
Poor Remote Transmitter Range/Remote Start or TPM Indicator On, May or may not set one or more of the following DTCs: C0750, C0755, C0760, C0765

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 7/25/2014
Unwanted Grade Braking, Low Power, and/or Transmission Busy Shifting

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

Released 1/24/2014
Fuel Gauge Shows Empty After Refueling And DTC P2636

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 1/4/2014
Loose Ground Terminal Repair and Proper Labor Code

Released 11/26/2013
Normal Characteristic - Key Off Radio Operation

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 10/18/2013
Poor Remote Transmitter Range/Remote Start or TPM Indicator On, May or may not set one or more of the following DTCs: C0750, C0755, C0760, C0765

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 9/11/2013
Clunk Noise Or Harsh 6-5 Downshift At 50 To 70 MPH - Harsh 4-3 Downshift, Or Harsh 3-2 Downshift At Lower Speeds

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
Accessory Power Outlet and Trailer Lighting Fuse Replacement Labor Operation N1720 Fuse Replacement

Released 3/29/2013
Vehicle Software Enhancements

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

Released 3/22/2013
Vibration Analysis Worksheet

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

Released 3/22/2013
OnStar Will Not Power Up

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

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

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

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
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 4/4/2012
Poor Voice Quality During Bluetooth Call or OnStar Personal Call

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 1/17/2012
Car and Truck Fix it Right the First Time Issues

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 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 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 Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages

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

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
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
SES Lamp P0171 P0174

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

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

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

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

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

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 1/17/2012
Car and Truck Fix it Right the First Time Issues

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

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

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

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

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

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

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 7/17/2014
Duramax Fuel Temperature Sensor Contacts the Fuel Return Pipe After Pump Replacement

Released 7/17/2014
Product Safety - Fuel Transfer Pump Malfunction

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

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

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 1/24/2014
Fuel Gauge Shows Empty After Refueling And DTC P2636

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
Properly Maintaining Vehicles in Dealer Inventory

Released 1/17/2012
Car and Truck Fix it Right the First Time Issues

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

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 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 8/31/2017
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
White, Milky or Cloudy Appearance of Front Differential Fluid

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
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 12/19/2016
Information on Diesel Engine Ticking Noise

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
Engine Control Module DTC P2610 (Control Module Ignition Off Timer Performance) Setting Malfunction Indicator Lamp (MIL)

Released 9/27/2016
2-3 Shift Flare Cold

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 4/22/2016
Harsh or Tie-Up Feeling from 6-4 Downshift

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 1/26/2016
Harsh or Tie-Up Feeling from 6-4 Downshift

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
Drive Motor Generator Control Module (PIM) Part Restriction

Released 10/31/2015
Harsh or Tie-Up Feeling from 6-4 Downshift

Released 10/31/2015
White, Milky or Cloudy Appearance of Front Differential Fluid

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
Allison LCT1000 Clunk When Shifting Into Or Out Of Park or On Start Up In Park

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

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

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

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

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

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

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
Information - Service Parts Transfer Case Bolt Hole And Case Appearance

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

Released 7/12/2015
Special Coverage - Transmission Wiring Harness

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
Harsh or Tie-Up Feeling from 6–4 Downshift

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

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

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

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

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
Alleged Cylinders Out Of Round

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

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 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 2/5/2014
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 12/12/2013
PQC Restriction Allison A1000 Transmission Valve Body RPO MW7

Released 11/14/2013
Unwanted Grade Braking, Low Power, and/or Transmission Busy Shifting

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
Diagnostic Tip: Diagnosing Vehicles with OnStar DTC B101D-37

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 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 9/11/2013
Clunk Noise Or Harsh 6-5 Downshift At 50 To 70 MPH - Harsh 4-3 Downshift, Or Harsh 3-2 Downshift At Lower Speeds

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

Released 8/22/2013
Tick/Ping Noise On Torque Reversal Or Load

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 7/29/2013
Allison LCT1000 PQC TCM Part Restriction

Released 7/12/2013
2012 and 2013 6.6L Duramax Engine Control Module Parts Restriction

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

Released 6/27/2013
PQC 2012 to 2014 Allison A1000 Automatic Transmission Assembly Restriction

Released 6/27/2013
PQC Restriction Allison A1000 Transmission Valve Body RPO MW7

Released 6/27/2013
Allison LCT1000 TAC TCM Part Restriction

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 6/14/2013
Delayed 1-2 Upshift While Driving At Or below 15 Percent Throttle

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
Vibration Analysis Worksheet

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

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 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 3/5/2012
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 1/17/2012
Car and Truck Fix it Right the First Time Issues

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

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

Released 2/5/2018
Safety Recall - Fuel Tank Expansion Into Driveline

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 - Chassis Electronic Control Module Internal Contamination

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

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

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

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

Released 7/12/2015
Special Coverage - Transmission Wiring Harness

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

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 7/17/2014
Product Safety - Fuel Transfer Pump Malfunction

Released 2/25/2019
Vibration at Highway Speeds

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 5/1/2017
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 4/12/2016
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
Tire Sidewall Irregularities

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

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 8/20/2014
Poor Remote Transmitter Range/Remote Start or TPM Indicator On, May or may not set one or more of the following DTCs: C0750, C0755, C0760, C0765

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

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
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 10/18/2013
Poor Remote Transmitter Range/Remote Start or TPM Indicator On, May or may not set one or more of the following DTCs: C0750, C0755, C0760, C0765

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
Vibration Analysis Worksheet

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

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 2/21/2012
Power Steering Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Operation (Replace Power Steering Fluid)

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

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

Released 1/17/2012
Car and Truck Fix it Right the First Time Issues

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 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
Information on USB Cable and Receptacle for Service

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

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

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

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 3/19/2012
Hem Flange Rust Repair

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

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

Released 3/1/2012
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
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 10/22/2011
Information for Dealers/Technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only)

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