Get Free 2012 CHEVROLET SILVERADO V8, 6.2L; OHV; 16V; SEFI; FFV TSBs

Released 1/11/2019
Tailgate and Cargo Loop Capacity

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 2/2/2018
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 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 5/2/2017
Accessory Soft Tonneau Cover Loose

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 12/1/2016
Hybrid 2-Mode Vehicle Stalls on Auto Start DTC P0BBD

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

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

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
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
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 Devices

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

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

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 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
Dent/Ripple Appearance Around Wheel Well Opening

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
Product Safety - Chassis Electronic Control Module Internal Contamination

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
White, Milky or Cloudy Appearance of Front Differential Fluid

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

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 5/2/2015
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 8/26/2014
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
High Voltage Safety - High Voltage Disabling

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 7/17/2014
Dust Intruding into Cabin Interior

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 2/21/2014
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 1/25/2014
Diagnostic Tip - Driver Or Passenger Door Module DTC B2555

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
Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions

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
Global Information for GM dexos 1 and dexos 2 Engine Oil Specifications, Licensed Brands, and Service Fill

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
Repair Information for Reconnection of Rear Window Defroster (Defogger) Contact or Tab

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

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
New Service Cam Bearings For Gen IV V8 Engines

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
Information for Electrical Ground Repair - Use New Replacement Fasteners with Conductive Finish

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

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

Released 3/19/2012
Hem Flange Rust Repair

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 1/19/2012
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 1/13/2012
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 1/12/2012
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 11/18/2016
(HYBRID) ABS Light On After Sequential Programming

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

Released 5/7/2014
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 6/24/2013
Engine Whine Noise At 1500-1800 RPM

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

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 12/1/2016
Hybrid 2-Mode Vehicle Stalls on Auto Start DTC P0BBD

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 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
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
Drive Motor Generator Control Module (PIM) Part Restriction

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

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 7/17/2014
High Voltage Safety - High Voltage Disabling

Released 7/17/2014
Service Power Steering and Service Hybrid System Messages After Cold Soak in Cold Ambient Temperatures

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 6/13/2014
Tow/Haul Cruise SES 4x4 Heated Washer Fluid Off Message And Various Other Indicator Lamps Do Not Illuminate

Released 6/13/2014
Unwanted Alarm Sounding (GM Accessory Inclination Sensor Mounting)

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

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 1/8/2014
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
Normal Characteristic - RKE Inoperative/Unable To Program Fobs

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 10/18/2013
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 10/15/2013
2-Mode (HYBRID) Diagnosing Slip Stall At A Stop Surge Lack Of Power Poor Fuel Economy with or without DTC P061B P0AFA P0BBD

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 9/11/2013
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
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 6/19/2013
Information on Slight Vehicle Movement in Park at Start Up After Cold Soak

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
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
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 2/21/2013
Intermittent Service 4WD Message With Any Of The Following DTCs C0306 C0321 C0398 C0396 C0569

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

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

Released 2/11/2013
Prior To Any Circuit Testing

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

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

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

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 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
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 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 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 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 1/17/2012
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 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 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 8/18/2014
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 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 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 3/5/2018
Fleet Key Option - Adding Keys / Converting

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 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
Diesel Engine Hard Start When Hot

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
Product Safety - Chassis Electronic Control Module Internal Contamination

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

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

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
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 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 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 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 1/17/2012
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 11/13/2014
Normal Characteristic - Passenger Compartment Air Filter

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 6/13/2014
Unwanted Alarm Sounding (GM Accessory Inclination Sensor Mounting)

Released 10/13/2011
Eliminating Unwanted Odors in Vehicles

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

Released 1/29/2019
Special Coverage Adjustment - MIL Lamp On / Glow Plug Heater Inoperative

Released 1/3/2019
Vehicle May Not Start Due To Loose Pin Fit or Backed Out Terminals

Released 1/2/2019
2 MODE HYBRID Vehicle Stalls When Shifted Out Of Park

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

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 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
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
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
Tick Noise and/or Misfires On AFM Cylinders 1 4 6 and/or 7

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

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

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

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

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

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

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

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 8/22/2015
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
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
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 9/4/2014
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 8/26/2014
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 6/19/2014
Delayed Or No Drive And Or Delayed Or No Reverse With DTCs Range Inhibit

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 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 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 10/31/2013
Random Bump Chuggle or Fishbite Sensation While Cruising At Approximately 1,300 RPM

Released 10/30/2013
Tick Noise And/or Misfires On AFM Cylinders 1 4 6 And/or 7

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

Released 10/15/2013
2-Mode (HYBRID) Diagnosing Slip Stall At A Stop Surge Lack Of Power Poor Fuel Economy with or without DTC P061B P0AFA P0BBD

Released 10/9/2013
Engine Misfire and No Compression due to Piston Damage

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 9/11/2013
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 8/23/2013
Engineering Information - Engine Whine Noise at 1000-1900 RPMs

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

Released 8/13/2013
PQC Part Restriction Control Solenoid WBody And TCM Valve Assembly And Valve Body

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

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

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

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 6/28/2013
Noise Or Vibration From The Engine Or Transmission

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

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

Released 6/10/2013
Low Oil Pump Pressure Due To Sticking Oil Pressure Relief Valve

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
New Service Cam Bearings For Gen IV V8 Engines

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 2/26/2013
Ticking Noise In 3rd And 4th Gear Above 30 MPH

Released 2/21/2013
Intermittent Service 4WD Message With Any Of The Following DTCs C0306 C0321 C0398 C0396 C0569

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
New Service Cam Bearings For Gen IV V8 Engines

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

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

Released 5/17/2016
Special Coverage Adjustment - Fractured Leaf Springs (Canada Only)

Released 3/9/2016
Special Coverage Adjustment - Fractured Leaf Springs

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
Product Safety - Chassis Electronic Control Module Internal Contamination

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

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 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 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 5/17/2016
Special Coverage Adjustment - Fractured Leaf Springs (Canada Only)

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 3/9/2016
Special Coverage Adjustment - Fractured Leaf Springs

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

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

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
Information on Slight or Mild Tire Feathering and Recommended Practices (Normal Tire Wear Condition)

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 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 7/19/2013
Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions

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 12/14/2016
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 7/8/2014
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
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 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