Get Free 2013 CHEVROLET EXPRESS G1500 V6, 4.3L; OHV; 12V; MPFI TSBs

Released 6/24/2020
Warranty Administration - Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only)

Released 5/27/2020
Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability

Released 5/20/2020
IPC Odometer Programming Method Quick Reference Guide

Released 5/7/2020
New Vehicle Pre-Delivery Inspection (PDI) - Delivering Quality Vehicles and Generating Higher CSi Scores

Released 5/6/2020
Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability

Released 4/14/2020
Underbody Component Corrosion

Released 4/3/2020
Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability

Released 3/20/2020
Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability

Released 3/18/2020
Warranty Administration - Courtesy Transportation and Roadside Assistance Programs

Released 1/21/2020
Warranty Administration - Repurchase Vehicle Dealer Processing Fee Labor Operation and Submission Guidelines (U.S. ONLY)

Released 12/12/2019
Service Programming System (SPS) Errors (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961)

Released 12/10/2019
Information on Removing Protective Film Bumper Covers Upon Delivery of Vehicle (PDI)

Released 11/25/2019
Use of Dealer Case Management (DCM) and Technician Preparedness for Contacting U.S. Technical Assistance (TAC)

Released 11/19/2019
Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting (U.S. and Canada Only)

Released 10/16/2019
Information for Dealers on How to Submit a Product Information Report (PIR) (Canada Only)

Released 9/6/2019
Procedure For Attaching GDS2 Session Logs To Technical Assistance Cases Using Dealer Case Management (US Dealers Only).

Released 9/5/2019
Creak/Pop Noise From Front Over Bumps

Released 8/19/2019
GM Wiring Repair Strategy Information

Released 6/26/2019
Information for Electrical Ground Repair - Use New Replacement Fasteners with Conductive Finish

Released 6/19/2019
Warranty Administration - Warranty SPS Control Module Reprogramming

Released 5/2/2019
Use of Dealer Case Management (DCM) and Technician Preparedness for Contacting U.S. Technical Assistance (TAC)

Released 4/23/2019
Intermittent Sunroof Operation, Bind, Noise, Auto-reverse, and/or Water Leaks

Released 4/1/2019
Information on Proper Use of Floor Mats

Released 3/28/2019
Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information

Released 3/26/2019
Warranty Administration - Updated - Dealer Empowerment Labor Operations and Customer Enthusiasm (U.S. Only)

Released 3/25/2019
New Vehicle Pre-Delivery Inspection (PDI) - Delivering Quality Vehicles and Generating Higher CSi Scores

Released 3/25/2019
Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability

Released 3/22/2019
Information on Proper Use of Floor Mats

Released 3/22/2019
Engineering Information (EI) Process

Released 3/18/2019
Information for Electrical Ground Repair - Use New Replacement Fasteners with Conductive Finish

Released 3/14/2019
Properly Maintaining Vehicles in Dealer Inventory

Released 3/13/2019
Procedure For Emailing Global Diagnostic System 2 (GDS2) Session Log To GM TAC (US and Canada Dealers Only).

Released 3/13/2019
Procedure For Attaching GDS2 Session Logs To Technical Assistance Cases Using Dealer Case Management (US Dealers Only)

Released 3/8/2019
Procedure For Emailing Global Diagnostic System 2 (GDS2) Session Log To GM TAC (US and Canada Dealers Only)

Released 3/6/2019
Verifying Odometer Accuracy

Released 2/26/2019
Requesting a New Key Code for Customer with Lost or Stolen Keys

Released 2/15/2019
Diagnostic Tips For I/M Flags Resetting After Ignition Cycled

Released 2/14/2019
Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting (U.S. and Canada Only)

Released 2/8/2019
Warranty Administration – Labor Operation 0600014 – Suspected Tampering or Vehicle Modifications

Released 2/5/2019
Properly Maintaining Vehicles in Dealer Inventory

Released 1/31/2019
Use of Dealer Case Management (DCM) and Technician Preparedness for Contacting U.S. Technical Assistance (TAC)

Released 1/31/2019
Comeback Prevention Information and Using Customer Concern Verification Sheets (CCVS)

Released 1/18/2019
Warranty Administration - Revised Wiring Repair Labor Operations and Required Additional Information

Released 1/14/2019
Warranty Administration - Required Operating Procedures (U.S. Only)

Released 1/2/2019
Photographing Various Vehicle Concerns and Submitting Them to the GM Technical Assistance Center (TAC)

Released 12/21/2018
Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers

Released 12/17/2018
Diagnostic Tip: EL-51578 MOST Bus Diagnostic Tool Kit

Released 12/17/2018
GM TAC Support of Vehicle Vibration Complaints - U.S. and Canada Dealers Only

Released 12/13/2018
Available Stop And Turn Lamp Options/Diagnostic Information

Released 12/13/2018
Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC)

Released 12/12/2018
Information on Removing Protective Film Bumper Covers Upon Delivery of Vehicle (PDI)

Released 12/5/2018
Warranty Administration - Warranty, SPS, Control Module Diagnostics and Configuration Information, Programming, Set-Up

Released 12/5/2018
Information on Passenger Presence Sensing System (PPS or PSS) Concerns with Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices

Released 11/30/2018
Identifying Non-GM (Aftermarket) Engine Calibrations for Gasoline Engines Using Tech 2 or GDS 2 (U.S. and Canada)

Released 11/27/2018
Information for Dealers/Service Advisors on When and How to Submit a Pre-Repair Authorization (PRA) (U.S. Dealers Only)

Released 11/20/2018
Information for Dealers/Technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only)

Released 11/20/2018
Requirements For OnStar Over The Air Programming And Updates

Released 11/20/2018
Diagnostic Tips: XM Audio Traffic And Travel Link Availability And Operation

Released 11/12/2018
Diagnostic Tip - Unable to Change HVAC Mode Defrost or Recirc Position

Released 11/5/2018
Working with GM on a Product Assistance Claim (PAC)

Released 11/2/2018
Warranty Administration - Guidelines for Multiple Repairs with Independent Causes (GM Canada Dealers only)

Released 10/30/2018
Warranty Administration - Labor Operation 0600018 - Personal Property Damage

Released 10/26/2018
Use of Surface Conditioning Disks When Cleaning Gasket Sealing Surfaces and/or Reused Parts

Released 10/23/2018
Vehicle Vibration Diagnosis and TAC Requests For Assistance With Vibration Related Complaints

Released 10/19/2018
Vehicle Vibration Diagnosis and TAC Requests For Assistance With Vibration Related Complaints

Released 10/17/2018
Vehicle Vibration Diagnosis and TAC Requests For Assistance With Vibration Related Complaints

Released 10/15/2018
SES Light, Misfire, DTC P0300, And/or A Chirp, Squeak, Squeal, Or Tick Noise - Potential

Released 10/10/2018
AC Blows Warm or Poor Performance

Released 10/8/2018
PAC Courtesy Transportation Assistance Program

Released 10/8/2018
Special Coverage - Blocked Exhaust Gas Recirculation Cooler

Released 10/3/2018
Diagnostic Tip: Fuel Injected Gasoline Engines Possible No Start Extended Crank or Fuel Pressure Related DTCs

Released 10/3/2018
Engine Replacement After Severe Internal Engine Damage - Replace Intake Manifold

Released 10/3/2018
Safety - Kidde Fire Extinguisher

Released 10/3/2018
IPC Odometer Programming Method Quick Reference Guide

Released 9/11/2018
Warranty Administration - Essential Tools that Include Consumable Parts (U.S. Only)

Released 9/5/2018
Information on A/C Odors During Start Up in Hot Humid Climates

Released 8/28/2018
Procedure For Emailing Global Diagnostic System 2 (GDS2) Session Log To GM TAC (US and Canada Dealers Only)

Released 8/24/2018
Variable Diagnostic Time Allowances (U.S. Only)

Released 8/22/2018
Diagnostic Tips for Odor Emanating from HVAC System

Released 8/22/2018
OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification

Released 8/22/2018
Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center

Released 8/22/2018
Adding Cruise Control (RPO K34)

Released 8/22/2018
Engineering Information - Drivers Window Switch Intermittent Operation, Inoperative, Smoke or Melting

Released 8/22/2018
Information on Paint Stain Under Protective Shipping Film

Released 8/22/2018
Hem Flange Rust Repair

Released 8/22/2018
Rear and Side Tempered Glass Spots (Quench Marks)

Released 8/8/2018
Alleged Cylinders Out Of Round

Released 8/8/2018
Diagnostic Tip - Diesel Exhaust Fluid System Contamination

Released 8/2/2018
Higher Than Expected Oil Consumption at 8600 GVW and Above

Released 7/30/2018
Diagnostic Tip - Diesel Fuel System Contamination

Released 7/25/2018
Identifying Non-GM (Aftermarket) Engine Calibrations for Gasoline Engines Using Tech 2 or GDS 2 (U.S. and Canada)

Released 7/24/2018
Intake Manifold Inspection/Replacement After Severe Internal Engine Damage

Released 7/24/2018
Information on Internal Engine Noise or Damage After Oil Filter Replacement

Released 7/23/2018
Information on Diesel Fuel Additives

Released 7/23/2018
Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues

Released 7/20/2018
Clean Exhaust Filter See Owners Manual Now, Cleaning Exhaust Filter Keep Driving Until Message is Cleared or Diesel Partic Filter is Full Continue Driving Displayed on DIC, DTC P2463 May Be Set

Released 7/6/2018
Diagnostic Aid: Part Identification For Next Generation Infotainment Components And Correct Labor Codes

Released 7/3/2018
Intermittent Sunroof Operation, Bind, Noise, Auto-reverse, and/or Water Leaks

Released 6/22/2018
Dealer Responsibility for Cargo Carrying Capacity Labeling

Released 6/21/2018
Information on New Refrigerant (R1234yf) for A/C Service

Released 6/20/2018
AC Blows Warm or Poor Performance

Released 6/19/2018
Diagnostic Tip - Diesel Exhaust Fluid System Contamination

Released 6/18/2018
Diagnostic Tip - Diesel Fuel System Contamination

Released 5/30/2018
Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information

Released 5/25/2018
Information on New Refrigerant (R1234yf) for A/C Service

Released 5/23/2018
Diagnostic Tip: Apple Device Connectivity Issues due to USB Cord Concern

Released 5/15/2018
Information on New Refrigerant (R-1234yf) for A/C Service

Released 5/14/2018
Warranty Administration - Required Operating Procedures (U.S. Only)

Released 5/10/2018
Warranty Administration - Courtesy Transportation and Roadside Assistance Programs

Released 5/4/2018
Warranty Administration - Proper Labor Operation Selection and Causal Part Identification for Warranty Transactions

Released 4/27/2018
Safety - Kidde Fire Extinguisher

Released 4/20/2018
Accessory Power Outlet and Trailer Lighting Fuse Replacement Labor Operation 5430130 Fuse Replacement

Released 4/19/2018
Information on Engine Oil Life Monitor Operation Calculation

Released 4/13/2018
Diagnostic Tip - School Bus Brake Warning System RPO UJ1 Functional Test And Diagnostics

Released 4/13/2018
Clarification Of RAP Operation

Released 4/9/2018
Information on Water or Ethylene Glycol in Transmission Fluid

Released 4/9/2018
Multiple Electrical Concerns, Intermittent Multiple Instrument Panel Cluster (IPC) Warning Lamps Illuminated, Intermittent Multiple Message on Drivers Information Center (DIC), Intermittent and/or Inoperative Loss of Interior and Exterior Lighting, Engine

Released 4/6/2018
Underbody Component Corrosion

Released 4/5/2018
Information on Diesel Fuel Gelling in Cold Temperatures Causing the In-Tank Fuel Pump to Whine and Driveability Concerns

Released 4/4/2018
Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting (U.S. and Canada Only)

Released 3/27/2018
Engineering Information - Drivers Window Switch Intermittent Operation, Inoperative, Smoke or Melting

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

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 12/11/2017
Engineering Information - Driver's Window Switch Intermittent Operation, Inoperative, Smoke or Melting

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

Released 11/8/2017
Special Coverage - Diesel Emission Fluid Tank Reservoir

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 7/21/2017
Information on Removing Protective Film Bumper Covers Upon Delivery of Vehicle (PDI)

Released 6/21/2017
Front Shock Mount Bracket Crack (Install Reinforcement)

Released 5/26/2017
Exterior Roof Panel Sag/Depression

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

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 11/2/2016
Customer Satisfaction Program - Vehicles with Key Codes Improperly Handled by Third Party

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

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

Released 9/19/2016
Available Stop And Turn Lamp Options/Diagnostic Information

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

Released 6/30/2016
Brake Hydroboost Leaking Power Steering Fluid

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
Information on Removing Protective Film Bumper Covers Upon Delivery of Vehicle (PDI)

Released 5/27/2016
Emergency Vehicle Reduced Power

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

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 12/2/2015
FMVSS Noncompliance - Fuel Label Compliance

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
Exterior Lighting Inoperative - Incorrect Upfitter BCM Connections

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

Released 10/31/2015
Alleged No Park or Vehicle Rolls in Park or Park Will Not Hold

Released 10/31/2015
Noise and/or Shake Felt While Driving

Released 10/31/2015
Information for No Start Due to Inoperative LPG Fuel Pump Resulting from Upfitter Modifications

Released 9/5/2015
Tow/Haul Mode Inoperative

Released 9/5/2015
Information on Removing Protective Film Bumper Covers Upon Delivery of Vehicle (PDI)

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
Front Shock Mount Bracket Crack (Install Reinforcement)

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

Released 6/20/2015
Diagnostic Tip - Unable to Change HVAC Mode Defrost Or Recirc Position

Released 6/1/2015
Insufficient Air Flow from Second and Third Row Roof Vents

Released 6/1/2015
Reduced Engine Power with Service Engine Message Displayed and DTC P2263 Set

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

Released 6/1/2015
Diagnostic Tip - Grind or Rattle Noise During a Left Turn or on a Bump

Released 6/1/2015
Customer Satisfaction - Torque Converter Clutch Wear

Released 6/1/2015
Exterior Roof Panel Sag/Depression

Released 6/1/2015
HVAC Vent and Floor Mode Selection Inoperative

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

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

Released 12/5/2014
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages

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

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

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

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

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

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

Released 7/17/2014
Exterior Roof Panel Sag/Depression

Released 7/17/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 7/17/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 7/17/2014
Outside Door Handle Does Not Open, Lock Rods Loose

Released 7/17/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 7/17/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 7/16/2014
Information on Removing Protective Film Bumper Covers Upon Delivery of Vehicle (PDI)

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

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 6/24/2014
Additional Diagnostics For DTC P0420 And Or P24A0

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

Released 5/16/2014
DTC Symptom Byte Documentation

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
GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period

Released 1/17/2014
Outside Door Handle Does Not Open, Lock Rods Loose

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

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

Released 11/11/2013
Fleet Key Option - Adding Keys / Converting

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

Released 10/1/2013
Information on Glass Ultra Violet UV Ray Protection And Tint Percentage

Released 9/6/2013
Engine Rattle/Buzz/Vibration at 1400 RPM

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 7/12/2013
Information on Removing Protective Film Bumper Covers Upon Delivery of Vehicle (PDI)

Released 6/28/2013
Malfunction Indicator Lamp (MIL) On, Various O2 Sensor DTCs Set

Released 6/21/2013
Exterior Roof Panel Sag/Depression

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

Released 6/19/2013
Correct Selection Of Labor Codes

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

Released 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 3/8/2013
Whine Noise - Varies with Engine Speed

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

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

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
Key Code Security Rules and Information on GM KeyCode Look-Up Application (Canada Only)

Released 1/1/2013
Dealer Responsibility for Cargo Carrying Capacity Labeling

Released 1/1/2013
Information on Inappropriate Warranty Claims Submitted for Damaged Radios and Instrument Panel Clusters (IPCs)

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 1/1/2013
Information on Aftermarket Device Interference with OnStar Diagnostic Services

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

Released 4/30/2012
Car and Truck Fix it Right the First Time Issues

Released 4/28/2012
Car and Truck Fix it Right the First Time Issues

Released 4/25/2012
Car and Truck Fix it Right the First Time Issues

Released 4/23/2012
Car and Truck Fix it Right the First Time Issues

Released 3/19/2012
Hem Flange Rust Repair

Released 3/16/2012
Requesting a New Key Code for Customer with Lost or Stolen Keys

Released 2/28/2012
MIL Illuminated, DTCs P0961, P0965, P0969, P2762 and Battery Has Been Relocated

Released 2/24/2012
Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules (VCIM) (GMNA Only)

Released 2/4/2012
Diagnostic Information for Transmission No Forward, No Reverse, Slips, Cracked/Split Fluid Filter

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

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 10/14/2011
Eliminating Unwanted Odors in Vehicles

Released 10/13/2011
Eliminating Unwanted Odors in Vehicles

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

Released 9/14/2011
Information on Body Control Module (BCM) Grounds

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

Released 4/6/2020
Diagnostic Tip - School Bus Brake Warning System RPO UJ1 Functional Test and Diagnostics

Released 6/24/2019
Brake Pedal Moves or Self Applies at Full Turns

Released 6/4/2019
Normal Mode Powertrain Grade Braking Feature

Released 5/13/2019
Brake Pedal Moves or Self Applies at Full Turns

Released 12/13/2018
Diagnostic Tip - School Bus Brake Warning System RPO UJ1 Functional Test And Diagnostics

Released 12/5/2018
Warranty Administration - Warranty, SPS, Control Module Diagnostics and Configuration Information, Programming, Set-Up

Released 4/13/2018
Diagnostic Tip - School Bus Brake Warning System RPO UJ1 Functional Test And Diagnostics

Released 11/22/2017
Unwanted Grade Braking, Low Power, and/or Transmission Busy Shifting / P057B, P057C, and/or P057D

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

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 6/30/2016
Brake Hydroboost Leaking Power Steering Fluid

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

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

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
Diagnostic Tip - School Bus Brake Warning System RPO UJ1 Functional Test and Diagnostics

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

Released 8/22/2015
Product Safety - Rear Brake Line Contact (Canada Only)

Released 3/28/2015
Special Coverage Adjustment - Inadequate Clearance of Fuel Fill Pipe Clamp to Brake Lines

Released 3/1/2015
Special Coverage Adjustment - Inadequate Clearance of Fuel Fill Pipe Clamp to Brake Lines

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

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

Released 4/30/2012
Car and Truck Fix it Right the First Time Issues

Released 4/28/2012
Car and Truck Fix it Right the First Time Issues

Released 3/21/2012
Service StabiliTrak Message Displayed in DIC, StabiliTrak Indicator Light On, DTC C0455 and/or C0710 Set

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 3/3/2016
Diesel Engine Cooling System Filling Procedure For Vehicles Equipped With Rear Heater

Released 8/8/2015
Diagnostic Tip - Engine Cooling System Fill Procedure For Vehicles Equipped With Rear Heater

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 8/15/2014
Diesel Engine Cooling System Filling Procedure For Vehicles Equipped With Rear Heater - Diagnostic Tip

Released 4/12/2013
Engineering Information - Service Engine Soon Lamp Illuminated, Increased Engine Noise, Perceived Higher RPM Shift Points (Caused By Excessive Cooling Fan Noise) or Reduced A/C Performance At Low Vehicle Speeds

Released 4/29/2012
Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules (Canada Only)

Released 4/28/2012
Car and Truck Fix it Right the First Time Issues

Released 4/23/2012
Car and Truck Fix it Right the First Time Issues

Released 11/19/2011
Unnecessary Flushing Services, Additive Recommendations and Proper Utilization of GM Simplified Maintenance Schedule to Enhance Customer Service Experience (U.S. Only)

Released 11/16/2011
Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules (U.S. Only)

Released 6/26/2020
Procedure For Emailing Global Diagnostic System 2 (GDS2) Session Log To GM TAC (US and Canada Dealers Only)

Released 5/21/2020
Misfire Template

Released 5/20/2020
IPC Odometer Programming Method Quick Reference Guide

Released 5/14/2020
IPC Odometer Programming Method Quick Reference Guide

Released 4/2/2020
Available Stop and Turn Lamp Options/Diagnostic Information

Released 3/26/2020
Adding Cruise Control (RPO K34)

Released 11/26/2019
Key Code Security Rules and Information on GM KeyCode Look-Up Application (U.S. Only)

Released 11/5/2019
J-35616-64B Or EL-35616-58 Terminal Test Probe Information/Repair

Released 8/19/2019
GM Wiring Repair Strategy Information

Released 7/16/2019
Multiple U-code Diagnostic Information – With one having symptom Byte 71

Released 6/3/2019
J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead

Released 5/28/2019
Procedure For Attaching GDS2 Session Logs To Technical Assistance Cases Using Dealer Case Management (US Dealers Only).

Released 4/23/2019
Intermittent Sunroof Operation, Bind, Noise, Auto-reverse, and/or Water Leaks

Released 1/29/2019
Cold Weather and Long Stand Time Battery Maintenance and Testing Tips

Released 1/18/2019
Warranty Administration - Revised Wiring Repair Labor Operations and Required Additional Information

Released 12/13/2018
Exterior Lamp Condensation and Replacement Guidelines

Released 12/13/2018
Available Stop And Turn Lamp Options/Diagnostic Information

Released 11/30/2018
Identifying Non-GM (Aftermarket) Engine Calibrations for Gasoline Engines Using Tech 2 or GDS 2 (U.S. and Canada)

Released 11/20/2018
Requirements For OnStar Over The Air Programming And Updates

Released 11/20/2018
Diagnostic Tips: XM Audio Traffic And Travel Link Availability And Operation

Released 10/23/2018
Vehicle Vibration Diagnosis and TAC Requests For Assistance With Vibration Related Complaints

Released 10/3/2018
IPC Odometer Programming Method Quick Reference Guide

Released 8/28/2018
Procedure For Emailing Global Diagnostic System 2 (GDS2) Session Log To GM TAC (US and Canada Dealers Only)

Released 8/24/2018
Variable Diagnostic Time Allowances (U.S. Only)

Released 8/22/2018
Adding Cruise Control (RPO K34)

Released 8/22/2018
Engineering Information - Drivers Window Switch Intermittent Operation, Inoperative, Smoke or Melting

Released 8/8/2018
Diagnostic Tip - Diesel Exhaust Fluid System Contamination

Released 7/24/2018
Information on Internal Engine Noise or Damage After Oil Filter Replacement

Released 7/23/2018
Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues

Released 7/3/2018
Intermittent Sunroof Operation, Bind, Noise, Auto-reverse, and/or Water Leaks

Released 6/18/2018
Diagnostic Tip - Diesel Fuel System Contamination

Released 5/23/2018
Diagnostic Tip: Apple Device Connectivity Issues due to USB Cord Concern

Released 4/20/2018
Accessory Power Outlet and Trailer Lighting Fuse Replacement Labor Operation 5430130 Fuse Replacement

Released 4/13/2018
Diagnostic Tip - School Bus Brake Warning System RPO UJ1 Functional Test And Diagnostics

Released 4/9/2018
Multiple Electrical Concerns, Intermittent Multiple Instrument Panel Cluster (IPC) Warning Lamps Illuminated, Intermittent Multiple Message on Drivers Information Center (DIC), Intermittent and/or Inoperative Loss of Interior and Exterior Lighting, Engine

Released 4/5/2018
Information on Diesel Fuel Gelling in Cold Temperatures Causing the In-Tank Fuel Pump to Whine and Driveability Concerns

Released 3/27/2018
Engineering Information - Drivers Window Switch Intermittent Operation, Inoperative, Smoke or Melting

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

Released 2/27/2018
Any Of The Following Fuses Blown F22PA F7UA F9UA F8UA F10UA F11UA F12UA F14UA F25UA F26UA F27UA F28UA F29UA F46UA F58UA F59UA F72UA and/or F75UA

Released 12/11/2017
Engineering Information - Driver's Window Switch Intermittent Operation, Inoperative, Smoke or Melting

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

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
Customer Satisfaction Program - Vehicles with Key Codes Improperly Handled by Third Party

Released 9/19/2016
Available Stop And Turn Lamp Options/Diagnostic Information

Released 10/31/2015
Exterior Lighting Inoperative - Incorrect Upfitter BCM Connections

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

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 8/26/2014
Clarification Of RAP Operation

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

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

Released 7/17/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 7/17/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

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

Released 7/17/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 7/17/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

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

Released 7/10/2014
Service Charging System Message Or Low Volt Gauge Reading After Cold Start

Released 6/25/2014
Service Charging System Message Or Low Volt Gauge Reading After Cold Start.

Released 6/24/2014
Additional Diagnostics For DTC P0420 And Or P24A0

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 Star

Released 5/16/2014
DTC Symptom Byte Documentation

Released 3/28/2014
Available Stop And Turn Lamp Options/Diagnostic Information

Released 2/8/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 2/8/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

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

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

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 11/11/2013
Fleet Key Option - Adding Keys / Converting

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 10/5/2013
OnStar Will Not Power Up

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

Released 9/14/2013
OnStar Will Not Power Up

Released 9/4/2013
TAC Part Restriction - Navigation Radio, Radio, and Integrated Center Stack (ICS) Components - US Dealers

Released 8/2/2013
Product Safety - Compressed Natural Gas (CNG) Fuel Tank Shut-Off Solenoid Connector

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

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
Powertrain and Various Electrical/Electronic Control Issues

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

Released 3/22/2013
OnStar Will Not Power Up

Released 3/22/2013
Vibration Analysis Worksheet

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

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

Released 2/15/2013
Multi-Media Interface Tester (MIT) Software Update for InTouch Radio

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
Information on Inappropriate Warranty Claims Submitted for Damaged Radios and Instrument Panel Clusters (IPCs)

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 4/30/2012
Car and Truck Fix it Right the First Time Issues

Released 4/28/2012
Car and Truck Fix it Right the First Time Issues

Released 4/23/2012
Car and Truck Fix it Right the First Time Issues

Released 2/28/2012
MIL Illuminated, DTCs P0961, P0965, P0969, P2762 and Battery Has Been Relocated

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

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 9/14/2011
Information on Body Control Module (BCM) Grounds

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

Released 11/8/2017
Special Coverage - Diesel Emission Fluid Tank Reservoir

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

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 12/19/2016
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 8/1/2016
Information on Diesel Exhaust Fluid (DEF)

Released 5/27/2016
Emergency Vehicle Reduced Power

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

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

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

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

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

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

Released 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 6/1/2015
Product Emission - Oxygen Sensor Fracture

Released 12/5/2014
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages

Released 10/1/2014
Product Emission - Oxygen Sensor Fracture

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 7/17/2014
Product Emiission - Oxygen Sensor Fracture

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 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 6/28/2013
Malfunction Indicator Lamp (MIL) On, Various O2 Sensor DTCs Set

Released 6/19/2013
Product Emission Recall - Electronic Control Unit (ECU) Calibration

Released 5/15/2013
2012 and 2013 6.6L Duramax Engine Control Module Parts Restriction

Released 4/12/2013
Engineering Information - Service Engine Soon Lamp Illuminated, Increased Engine Noise, Perceived Higher RPM Shift Points (Caused By Excessive Cooling Fan Noise) or Reduced A/C Performance At Low Vehicle Speeds

Released 4/4/2013
Cold Engine Tick Noise That May Last Up To 50 Seconds

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 3/19/2013
SES Lamp DTC P0340

Released 3/5/2013
SES Lamp DTC P0340

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

Released 1/22/2013
Exhaust Fluid Quality Poor Message Difficult To Clear

Released 1/14/2013
Rough Idle And/Or Lack Of Power On Acceleration After Cold Start - Possible Characteristic

Released 1/14/2013
Rough Idle And/Or Lack Of Power On Acceleration After Cold Start - Possible Characteristic

Released 1/1/2013
Service Update for Inventory and Customer Vehicles - Engine Serial Number Not Present in ECM - Expires with Base Warranty

Released 4/25/2012
Car and Truck Fix it Right the First Time Issues

Released 4/23/2012
Car and Truck Fix it Right the First Time Issues

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

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

Released 10/8/2018
Special Coverage - Blocked Exhaust Gas Recirculation Cooler

Released 7/20/2018
Clean Exhaust Filter See Owners Manual Now, Cleaning Exhaust Filter Keep Driving Until Message is Cleared or Diesel Partic Filter is Full Continue Driving Displayed on DIC, DTC P2463 May Be Set

Released 6/19/2018
Diagnostic Tip - Diesel Exhaust Fluid System Contamination

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

Released 3/23/2016
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 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 10/31/2015
Diesel Oxidation Converter Part Restriction

Released 10/31/2015
Diesel Oxidation Converter Part Restriction Has Ended

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 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 12/5/2014
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages

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 6/19/2014
Additional Diagnostics For DTC P0420 And Or P24A0

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 9/6/2013
Engine Rattle/Buzz/Vibration at 1400 RPM

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

Released 4/22/2013
SES Lamp P0420

Released 2/4/2013
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 4/30/2012
Car and Truck Fix it Right the First Time Issues

Released 4/28/2012
Car and Truck Fix it Right the First Time Issues

Released 4/25/2012
Car and Truck Fix it Right the First Time Issues

Released 2/8/2012
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 1/1/2012
Exhaust Leak or Vibration/Rattle Noise at Approximately 900 RPM, Fuel Smell, White Smoke, Oily Substance on Exhaust Downpipe

Released 12/29/2011
Exhaust Leak or Vibration/Rattle Noise at Approximately 900 RPM, Fuel Smell, White Smoke, Oily Substance on Exhaust Downpipe

Released 1/14/2020
Diagnostic Tip: Poor Engine Performance Or CEL On In Cold Ambient Temperatures On Vehicles Equipped With Turbocharged Gasoline Engines May Set One Or More Of The Following DTCs P0299 P2227

Released 10/22/2019
GE-52250 Power Smoke Diagnostic Leak Detector Turbocharger Charge Air And Induction System Tester MIL Reduced Engine Power

Released 6/26/2019
TOP TIER Detergent Gasoline and TOP TIER Diesel Fuel Information and Licensed Brands

Released 6/21/2019
Fuel Odor or Signs of Fuel At High Pressure Pump To High Pressure Fuel Lines, Fuel Leak Found At the Bottom Of The Flywheel Housing

Released 6/19/2019
Warranty Administration - Warranty SPS Control Module Reprogramming

Released 3/7/2019
TOP TIER Detergent Gasoline and TOP TIER Diesel Fuel Information and Licensed Brands

Released 2/15/2019
Diagnostic Tips For I/M Flags Resetting After Ignition Cycled

Released 12/3/2018
SES Light with Fuel Trim and or Oxygen Sensor Codes

Released 11/30/2018
Identifying Non-GM (Aftermarket) Engine Calibrations for Gasoline Engines Using Tech 2 or GDS 2 (U.S. and Canada)

Released 10/3/2018
Diagnostic Tip: Fuel Injected Gasoline Engines Possible No Start Extended Crank or Fuel Pressure Related DTCs

Released 8/8/2018
Diagnostic Tip - Diesel Exhaust Fluid System Contamination

Released 7/30/2018
Diagnostic Tip - Diesel Fuel System Contamination

Released 7/25/2018
Identifying Non-GM (Aftermarket) Engine Calibrations for Gasoline Engines Using Tech 2 or GDS 2 (U.S. and Canada)

Released 7/23/2018
Information on Diesel Fuel Additives

Released 6/18/2018
Diagnostic Tip - Diesel Fuel System Contamination

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

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

Released 7/18/2017
Stalling - Hesitation - Lack Of Performance P018B And/Or P2635 Setting In High Ambient Temperatures

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 11/2/2016
Customer Satisfaction Program - Vehicles with Key Codes Improperly Handled by Third Party

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

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

Released 6/28/2016
Compressed Natural Gas (CNG) Fuel Line Inspection and Replacement Part Identification

Released 4/18/2016
Compressed Natural Gas (CNG) Valve Outgassing at Extreme Cold Temperatures

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

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

Released 12/2/2015
FMVSS Noncompliance - Fuel Label Compliance

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

Released 10/31/2015
Information for No Start Due to Inoperative LPG Fuel Pump Resulting from Upfitter Modifications

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

Released 10/31/2015
Product Safety - Compressed Natural Gas (CNG) High Pressure Regulator

Released 10/31/2015
Special Coverage Adjustment - Fuel Pump Module Battery Terminal

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 6/1/2015
Information for No Start Due to Inoperative LPG Fuel Pump Resulting from Upfitter Modifications

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

Released 3/1/2015
Special Coverage Adjustment - Inadequate Clearance of Fuel Fill Pipe Clamp to Brake Lines

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
Emission Recall - CleanFUEL - Liquefied Petroleum Gas (LPG) Fuel Pump Wear

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
Fuel Odor - Fuel Leak At High Pressure Pump To High Pressure Fuel Lines - Fuel Leak Found At the Bottom Of The Flywheel Housing

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 1/17/2014
Information for No Start Due to Inoperative LPG Fuel Pump Resulting From Upfitter Revisions

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 8/2/2013
Product Safety - Compressed Natural Gas (CNG) Fuel Tank Shut-Off Solenoid Connector

Released 5/8/2013
DTCs P0088 And P128E Setting After Fuel System Or Engine Repair

Released 2/5/2013
SES Light due to P0300-P0308 and Engine Misfires - Inspect Plug Wire

Released 2/1/2013
F/CMVSS Noncompliance-Ignition Key Retention

Released 1/22/2013
DTC P0420 - Requesting Additional Information If Q57 Indirect Fuel Injector Replacement Is Necessary

Released 1/11/2013
F/CMVSS Noncompliance - Ignition Key Retention

Released 1/1/2013
Information on Diesel Fuel Additives

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 4/29/2012
Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules (Canada Only)

Released 4/23/2012
Car and Truck Fix it Right the First Time Issues

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 1/14/2012
Properly Maintaining Vehicles in Dealer Inventory

Released 1/1/2012
Exhaust Leak or Vibration/Rattle Noise at Approximately 900 RPM, Fuel Smell, White Smoke, Oily Substance on Exhaust Downpipe

Released 12/29/2011
Exhaust Leak or Vibration/Rattle Noise at Approximately 900 RPM, Fuel Smell, White Smoke, Oily Substance on Exhaust Downpipe

Released 11/12/2018
Diagnostic Tip - Unable to Change HVAC Mode Defrost or Recirc Position

Released 10/10/2018
AC Blows Warm or Poor Performance

Released 9/5/2018
Information on A/C Odors During Start Up in Hot Humid Climates

Released 8/22/2018
Diagnostic Tips for Odor Emanating from HVAC System

Released 6/21/2018
Information on New Refrigerant (R1234yf) for A/C Service

Released 6/20/2018
AC Blows Warm or Poor Performance

Released 5/25/2018
Information on New Refrigerant (R1234yf) for A/C Service

Released 5/15/2018
Information on New Refrigerant (R-1234yf) for A/C Service

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

Released 6/20/2015
Diagnostic Tip - Unable to Change HVAC Mode Defrost Or Recirc Position

Released 6/1/2015
HVAC Vent and Floor Mode Selection Inoperative

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

Released 4/12/2013
Engineering Information - Service Engine Soon Lamp Illuminated, Increased Engine Noise, Perceived Higher RPM Shift Points (Caused By Excessive Cooling Fan Noise) or Reduced A/C Performance At Low Vehicle Speeds

Released 4/30/2012
Car and Truck Fix it Right the First Time Issues

Released 4/29/2012
Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules (Canada Only)

Released 4/23/2012
Car and Truck Fix it Right the First Time Issues

Released 11/19/2011
Unnecessary Flushing Services, Additive Recommendations and Proper Utilization of GM Simplified Maintenance Schedule to Enhance Customer Service Experience (U.S. Only)

Released 11/16/2011
Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules (U.S. Only)

Released 10/13/2011
Eliminating Unwanted Odors in Vehicles

Released 6/26/2020
Duramax Intermittent High Idle Or Elevated Idle Descriptions

Released 6/23/2020
Warranty Administration - Engine and Transmission Assembly Replacement (U.S. Only)

Released 6/12/2020
Unwanted Grade Braking, Low Power, and/or Transmission Busy Shifting / P057B, P057C, and/or P057D

Released 5/28/2020
Higher Than Expected Oil Consumption at 8600 GVW and Above

Released 5/21/2020
Misfire Template

Released 5/11/2020
2-3 Upshift Slip or Flare

Released 5/5/2020
GE-52250 Power Smoke Diagnostic Leak Detector Turbocharger Charge Air And Induction System Tester MIL Reduced Engine Power

Released 3/9/2020
Information on Malfunction Indicator Lamp (MIL) Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set

Released 10/29/2019
Information on Driveline Clunk Noise

Released 10/17/2019
Diagnostic Tip - Diesel Exhaust Fluid System Contamination

Released 10/14/2019
Clean Exhaust Filter See Owners Manual Now, Cleaning Exhaust Filter Keep Driving Until Message is Cleared or Diesel Partic Filter is Full Continue Driving Displayed on DIC, DTC P2463 May Be Set

Released 10/9/2019
Information on Engine Oil Consumption Guidelines

Released 9/20/2019
Diagnostic Tip on Misfire, Chirp, Squeak, Squeal or Tick Noise, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 and/or P0308 Set

Released 8/21/2019
Identifying Non-GM (Aftermarket) Engine Calibrations for Gasoline Engines Using Tech 2 or GDS 2 (U.S. and Canada)

Released 8/19/2019
GM Wiring Repair Strategy Information

Released 8/15/2019
Engine Replacement After Severe Internal Engine Damage - Replace Intake Manifold

Released 8/13/2019
Information on Internal Engine Noise or Damage After Oil Filter Replacement

Released 8/12/2019
Information on Slight Vehicle Movement in Park at Start Up After Cold Soak

Released 8/7/2019
Low Oil Pump Pressure Due To Sticking Oil Pressure Relief Valve

Released 7/16/2019
Diagnostic Tips for Reduced Acceleration at Low Speed and/or Transmission Slipping from a Launch, DTC P0751 Set

Released 6/27/2019
Identifying Non-GM (Aftermarket) Engine Calibrations for Gasoline Engines Using Tech 2 or GDS 2 (U.S. and Canada)

Released 6/26/2019
Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues

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

Released 6/19/2019
Warranty Administration - Warranty SPS Control Module Reprogramming

Released 5/20/2019
Information on Water or Ethylene Glycol in Transmission Fluid

Released 5/7/2019
Avoiding Torque Converter Or Crankshaft Damage While Diagnosing Noise Concerns Do Not Separate The Torque Converter From the Flex Plate

Released 5/6/2019
Needle Bearings Found In The Oil Pan During An Oil Change

Released 4/2/2019
Manual Transmission Operating Characteristics

Released 2/21/2019
High Pitch Whine or Buzz Noise Heard From Under The Vehicle

Released 2/18/2019
Misfire Template

Released 1/11/2019
Poor Engine Performance Or CEL On In Cold Ambient Temperatures On Vehicles Equipped With Turbocharged Gasoline Engines May Set One Or More Of The Following DTCs P0299 P2227

Released 12/6/2018
Poor Engine Performance Or CEL On In Cold Ambient Temperatures On Vehicles Equipped With Turbocharged Gasoline Engines May Set One Or More Of The Following DTCs P0171 P0172 P0299 P2227

Released 12/5/2018
Warranty Administration - Warranty, SPS, Control Module Diagnostics and Configuration Information, Programming, Set-Up

Released 12/3/2018
SES Light with Fuel Trim and or Oxygen Sensor Codes

Released 10/30/2018
Warranty Administration - Labor Operation 0600018 - Personal Property Damage

Released 10/23/2018
Vehicle Vibration Diagnosis and TAC Requests For Assistance With Vibration Related Complaints

Released 10/19/2018
Vehicle Vibration Diagnosis and TAC Requests For Assistance With Vibration Related Complaints

Released 10/17/2018
Vehicle Vibration Diagnosis and TAC Requests For Assistance With Vibration Related Complaints

Released 10/15/2018
SES Light, Misfire, DTC P0300, And/or A Chirp, Squeak, Squeal, Or Tick Noise - Potential

Released 10/8/2018
Special Coverage - Blocked Exhaust Gas Recirculation Cooler

Released 10/3/2018
Engine Replacement After Severe Internal Engine Damage - Replace Intake Manifold

Released 8/22/2018
OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification

Released 8/22/2018
Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center

Released 8/8/2018
Alleged Cylinders Out Of Round

Released 8/2/2018
Higher Than Expected Oil Consumption at 8600 GVW and Above

Released 7/30/2018
Diagnostic Tip - Diesel Fuel System Contamination

Released 7/24/2018
Intake Manifold Inspection/Replacement After Severe Internal Engine Damage

Released 7/24/2018
Information on Internal Engine Noise or Damage After Oil Filter Replacement

Released 4/19/2018
Information on Engine Oil Life Monitor Operation Calculation

Released 4/9/2018
Information on Water or Ethylene Glycol in Transmission Fluid

Released 4/5/2018
Information on Diesel Fuel Gelling in Cold Temperatures Causing the In-Tank Fuel Pump to Whine and Driveability Concerns

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

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

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
Diesel Engine Hard Start When Hot

Released 10/31/2015
Alleged No Park or Vehicle Rolls in Park or Park Will Not Hold

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
Alleged No Park or Vehicle Rolls in Park or Park Will Not Hold

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

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

Released 10/31/2015
Special Coverage Adjustment - Torque Converter Clutch Wear

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

Released 10/31/2015
Alleged No Park or Vehicle Rolls in Park or Park Will Not Hold

Released 9/5/2015
Tow/Haul Mode Inoperative

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 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
Higher Than Expected Oil Consumption at 8600 GVW and Above

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
Diagnostic Tip - Grind or Rattle Noise During a Left Turn or on a Bump

Released 6/1/2015
Customer Satisfaction - Torque Converter Clutch Wear

Released 5/30/2015
Alleged No Park or Vehicle Rolls in Park or Park Will Not Hold

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

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 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 4/17/2014
Crank No Start - Inspect for Sheared Cam Pin

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 2/26/2014
Poor Finish On Camshafts

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

Released 2/13/2014
2010 through 2014 6.6L Duramax Diesel Engine (RPO codes LGH and LML) Part Number 12638502 PQC Restriction

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

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

Released 11/8/2013
Engineering Information - Engine Oil Leak at Lower Oil Pan

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

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

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

Released 4/12/2013
Information on Driveline Clunk Noise

Released 3/26/2013
SES Lamp due to DTC P0016 Setting

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

Released 3/22/2013
New Service Cam Bearings For Gen IV V8 Engines

Released 3/22/2013
Vibration Analysis Worksheet

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

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

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 1/29/2013
Harsh Shift Illuminated MIL DTC P0716 And Or P0717 May Be Current Or In History In The TCM

Released 1/29/2013
PQC Restriction 2010- 2013 6.6L Duramax Diesel Engine (RPO LGH and LML) Part Number 12638502

Released 1/21/2013
Harsh Shift Illuminated MIL DTC P0717 May Be Current Or In History In The TCM

Released 1/16/2013
Misfire After Camshaft Replacement On The AFM Cylinders 1 4 6 And 7(Check The Part Number On The End Of The Camshaft)

Released 1/14/2013
Ticking Noise In 3rd And 4th Gear Above 30 MPH

Released 1/8/2013
SES Light, Misfire, DTC P0300, and/or a Chirp, Squeak, Squeal, or Tick Noise - Potential Valvetrain Concern

Released 1/1/2013
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 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 12/25/2012
SES Light Misfire DTC P0300 And/Or A Chirp Squeak Squeal Or Tick Noise - Potential Valvetrain Concern

Released 4/30/2012
Car and Truck Fix it Right the First Time Issues

Released 4/29/2012
Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules (Canada Only)

Released 4/28/2012
Car and Truck Fix it Right the First Time Issues

Released 4/23/2012
Car and Truck Fix it Right the First Time Issues

Released 3/28/2012
Information on Diesel Engine Ticking Noise

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

Released 2/8/2012
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 2/5/2012
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 2/5/2012
Diagnostic Information for Transmission No Forward, No Reverse, Slips, Cracked/Split Fluid Filter

Released 2/4/2012
Diagnostic Information for Transmission No Forward, No Reverse, Slips, Cracked/Split Fluid Filter

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

Released 11/23/2011
Product Quality Center (PQC) Information for Engine, Transmission and Transfer Case Assembly Replacement Authorization Request Process

Released 11/20/2011
Information for Dealers Not Required to Contact Product Quality Center (PQC) for Transmission Replacement Authorization

Released 11/16/2011
Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules (U.S. Only)

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 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 11/2/2016
Customer Satisfaction Program - Vehicles with Key Codes Improperly Handled by Third Party

Released 5/27/2016
Emergency Vehicle Reduced Power

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

Released 10/31/2015
Special Coverage Adjustment - Torque Converter Clutch Wear

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

Released 10/31/2015
Product Safety - Compressed Natural Gas (CNG) High Pressure Regulator

Released 10/31/2015
Special Coverage Adjustment - Fuel Pump Module Battery Terminal

Released 8/22/2015
Product Safety - Rear Brake Line Contact (Canada Only)

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

Released 6/1/2015
Product Emission - Oxygen Sensor Fracture

Released 6/1/2015
Customer Satisfaction - Torque Converter Clutch Wear

Released 3/28/2015
Special Coverage Adjustment - Inadequate Clearance of Fuel Fill Pipe Clamp to Brake Lines

Released 3/1/2015
Special Coverage Adjustment - Inadequate Clearance of Fuel Fill Pipe Clamp to Brake Lines

Released 10/1/2014
Product Emission - Oxygen Sensor Fracture

Released 7/17/2014
Product Emiission - Oxygen Sensor Fracture

Released 7/17/2014
Emission Recall - CleanFUEL - Liquefied Petroleum Gas (LPG) Fuel Pump Wear

Released 7/17/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 7/17/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 7/17/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 7/17/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 2/8/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 2/8/2014
F/CMVSS Noncompliance - Passenger Side Instrument Panel Performance

Released 8/2/2013
Product Safety - Compressed Natural Gas (CNG) Fuel Tank Shut-Off Solenoid Connector

Released 6/19/2013
Product Emission Recall - Electronic Control Unit (ECU) Calibration

Released 2/1/2013
F/CMVSS Noncompliance-Ignition Key Retention

Released 1/4/2013
F/CMVSS Noncompliance - Steering Column Lock Actuator Gear

Released 6/5/2020
Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Operation (Replace Power Steering Fluid)

Released 4/29/2020
Warranty Administration - General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only)

Released 2/26/2020
Warranty Administration - General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only)

Released 6/24/2019
Brake Pedal Moves or Self Applies at Full Turns

Released 6/19/2019
Warranty Administration - Warranty SPS Control Module Reprogramming

Released 5/13/2019
Brake Pedal Moves or Self Applies at Full Turns

Released 5/9/2019
Information on Tire Radial Force Variation (RFV)

Released 12/17/2018
GM TAC Support of Vehicle Vibration Complaints - U.S. and Canada Dealers Only

Released 12/5/2018
Warranty Administration - General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only)

Released 6/21/2017
Front Shock Mount Bracket Crack (Install Reinforcement)

Released 4/25/2016
Front Suspension Too Low, Excessive Tire Wear, Unable to Perform Alignment

Released 3/31/2016
Noise from Rear Leaf Spring Under Acceleration and High Loads (Replace Rear Leaf Spring Shackle)

Released 10/31/2015
Noise and/or Shake Felt While Driving

Released 10/31/2015
Front Shock Mount Bracket Crack (Install Reinforcement)

Released 10/31/2015
Alleged No Park or Vehicle Rolls in Park or Park Will Not Hold

Released 6/27/2015
Front Shock Mount Bracket Crack (Install Reinforcement)

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

Released 1/24/2014
Refinishing Aluminum Wheels

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

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

Released 6/19/2013
Diagnosing Power Steering Concerns

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

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

Released 3/22/2013
Vibration Analysis Worksheet

Released 3/8/2013
Whine Noise - Varies with Engine Speed

Released 1/25/2013
Whine Noise - Varies with Engine Speed

Released 1/4/2013
F/CMVSS Noncompliance - Steering Column Lock Actuator Gear

Released 1/1/2013
Dealer Responsibility for Cargo Carrying Capacity Labeling

Released 1/1/2013
Use of Nitrogen Gas in Tires

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

Released 1/1/2013
Information on Proper Tire Pressure

Released 1/1/2013
Statement on Tire Sealant Included in GM Inflator Kits (Supplied with New Vehicles or as GM Accessory)

Released 1/1/2013
F/CMVSS Noncompliance - Steering Column Lock Actuator Gear

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

Released 4/30/2012
Car and Truck Fix it Right the First Time Issues

Released 4/29/2012
Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules (Canada Only)

Released 4/28/2012
Car and Truck Fix it Right the First Time Issues

Released 4/25/2012
Car and Truck Fix it Right the First Time Issues

Released 4/23/2012
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 11/19/2011
Unnecessary Flushing Services, Additive Recommendations and Proper Utilization of GM Simplified Maintenance Schedule to Enhance Customer Service Experience (U.S. Only)

Released 11/16/2011
Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules (U.S. Only)

Released 11/5/2019
J-35616-64B Or EL-35616-58 Terminal Test Probe Information/Repair

Released 10/10/2019
Vehicle Vibration Diagnosis and TAC Requests For Assistance With Vibration Related Complaints

Released 10/9/2019
Key Code Security Rules and Information on GM KeyCode Look-Up Application (U.S. Only)

Released 9/17/2019
Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information

Released 6/3/2019
J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead

Released 5/9/2019
Information on Tire Radial Force Variation (RFV)

Released 11/27/2018
Information for Dealers/Service Advisors on When and How to Submit a Pre-Repair Authorization (PRA) (U.S. Dealers Only)

Released 11/20/2018
Information for Dealers/Technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only)

Released 11/5/2018
Working with GM on a Product Assistance Claim (PAC)

Released 10/26/2018
Use of Surface Conditioning Disks When Cleaning Gasket Sealing Surfaces and/or Reused Parts

Released 10/8/2018
PAC Courtesy Transportation Assistance Program

Released 10/3/2018
Safety - Kidde Fire Extinguisher

Released 9/11/2018
Warranty Administration - Essential Tools that Include Consumable Parts (U.S. Only)

Released 6/22/2018
Dealer Responsibility for Cargo Carrying Capacity Labeling

Released 5/30/2018
Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information

Released 5/14/2018
Warranty Administration - Required Operating Procedures (U.S. Only)

Released 5/10/2018
Warranty Administration - Courtesy Transportation and Roadside Assistance Programs

Released 4/13/2018
Clarification Of RAP Operation

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 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
Comeback Prevention Information and Using Customer Concern Verification Sheets (CCVS)

Released 1/1/2013
Enhancing Field Product Reports with Digital Pictures

Released 1/1/2013
Information for Dealers on How to Submit a Product Information Report (PIR) (Canada Only)

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

Released 4/29/2012
Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules (Canada Only)

Released 3/19/2012
Hem Flange Rust Repair

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
Information for Dealers/Technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only)

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