Get Free 2016 CHEVROLET EXPRESS G3500 V8, 4.8L; OHV; 16V; FFV TSBs

Released 7/23/2020
LIN Bus Diagnostic Information

Released 7/10/2020
Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information

Released 7/10/2020
Warranty Administration - Transportation Claim Submission Requirements

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 2/27/2020
Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only)

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 7/16/2019
Noncompliance Recall - Incorrect Rear Quarter Glass

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

Released 6/21/2019
Noncompliance Recall - Incorrect Rear Quarter Glass

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

Released 6/10/2019
Steam/Vapor Coming from Front Grille or Radiator Area

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 4/8/2019
8L45, 8L90 Park System Does Not Engage

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

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

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 3/11/2019
Transport Mode On Message Displayed in DIC and/or Battery Light is Flashing

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 2/14/2019
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 2/8/2019
Transport Mode On Message Displayed in DIC and/or Battery Light is Flashing

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 1/8/2019
Warranty Administration - Transportation Claim Submission Requirements

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 11/7/2018
Safety Recall - Rear HVAC Controller Fire

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

Released 10/3/2018
Safety - Kidde Fire Extinguisher

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

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
IPC Odometer Programming Method Quick Reference Guide

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

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

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

Released 8/22/2018
Engineering Information — Drivers Door Window Glass Out of Channel and/or Inoperative

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

Released 8/22/2018
Hem Flange Rust Repair

Released 8/22/2018
Audio Volume Stuck High or Low with No DTCs

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

Released 8/22/2018
Information on Service Manuals Availability on USB

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

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 8/14/2018
Surge, Chuggle, Misfire, Fishbite, Shudder Feel During Driving Maneuvers

Released 8/8/2018
Alleged Cylinders Out Of Round

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

Released 8/3/2018
Safety Recall - Drivers Side Power Window Switch Inoperative

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
Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues

Released 7/23/2018
Information on Diesel Fuel Additives

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 6/1/2018
Transport Mode On Message Displayed in DIC and/or Battery Light is Flashing

Released 5/31/2018
Squeak Noise from Rear of Vehicle (Lubricate Rear Leaf Springs)

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 4/26/2018
Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers

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 3/28/2018
Engineering Information — Drivers Door Window Glass Out of Channel and/or Inoperative

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

Released 3/27/2018
Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow Procedure as Outlined Below)

Released 3/26/2018
GM of Canada New Vehicle Tire Warranty Program and GWM Transaction Submission Information

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 2/14/2018
OnStar, XM, GPS or Antenna Malfunction -- May Set DTC B2462, B2470 or B125C - and/or Water Leak on Headliner at Sun Visor or Overhead Console Areas, Possible Battery Drain Concern

Released 2/1/2018
Noncompliance Recall - Vehicles Built Without Tire Pressure Monitoring System (TPMS) - USA Only

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

Released 8/31/2017
Turbocharger Whine Noise

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 6/19/2017
Invalid Product Update Message During/After Navigation Map Update Outlined in Bulletin 16-NA-328

Released 6/12/2017
Information on Charge Air System Leaks, Malfunction Indicator Lamp (MIL) Illuminated - DTC’s P0101, P0263, P0266, P0269, P0272, P0275, P0278, P0281, P0284, P0299, P0712, P11CC, P11DC, P2002, P2459, P2463, P2627, P200C, P200E, P20EE, P22B6 and/or P2A0

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

Released 4/19/2017
Navigation Map Update (U.S. and Canada Dealers Only)

Released 4/13/2017
Oil Leak from Turbocharger Inlet or Outlet Duct

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 12/8/2016
Customer Satisfaction Program - Passenger Outside Mirror Label Not Released in French

Released 11/21/2016
Air Conditioning Does Not Blow Cold

Released 11/18/2016
Customer Satisfaction Program - Missing USB Port

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

Released 11/3/2016
F/CMVSS - Cargo Vans/Cutaways Built Without Inside Rear View Mirror

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

Released 11/1/2016
No Crank / No Start

Released 9/26/2016
Service Update - Holes and Loose Wires in Headliner

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

Released 8/23/2016
Customer Satisfaction - Headliner Retrofit

Released 8/9/2016
Information for Fleet Vehicles - Ignition Key, Fob and Key Rings Configuration

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

Released 7/13/2016
Information on Incorrect Tire Valve Stems Being Installed

Released 7/13/2016
Customer Satisfaction Program - Engine Stall During Deceleration

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 6/14/2016
Information on Removal of Wheel Washers Prior to Installation of Outer Dual Rear Wheel

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

Released 2/11/2016
2016 Chevrolet Express and GMC Savana Cargo and Cutaway Vans - Incorrect 7th Character of VIN

Released 1/26/2016
Instrument Panel Upper Trim Pad Discoloration and/or Shiny Spot

Released 1/14/2016
Service Update for Inventory and Customer Vehicles - Sliding Door Does Not Lock Manually and/or Outside Door Handle Breaks Off - Expires with Base Warranty

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 12/7/2015
Side Sliding Door Handle Broken or Inability to Lock Door with Key from Outside Vehicle

Released 11/12/2015
Information on Refilling Coolant After Recent Repair

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 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
Identifying Non-GM ECM Calibration Use and Power-up Hardware Detection in Duramax Diesel Engines Using GDS 2

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

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

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 11/13/2017
Normal Mode Powertrain Grade Braking Feature

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

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

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

Released 11/12/2015
Information on Refilling Coolant After Recent Repair

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

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

Released 6/25/2020
Warranty Administration - Battery Testing and Warranty Replacement Requirements (North America 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 4/9/2020
Warranty Administration - Battery Testing and Warranty Replacement Requirements (North America ONLY)

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 9/25/2019
Do Not Swap Modules in Vehicles with Global Electrical Systems

Released 8/19/2019
GM Wiring Repair Strategy Information

Released 7/30/2019
LIN Bus Diagnostic Information

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

Released 6/6/2019
Customer Satisfaction Program - Incorrect Rear Quarter Glass Panel Owner Manual Information – Canada Only

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 4/1/2019
Warranty Administration - Battery Testing and Warranty Replacement Requirements (North America ONLY)

Released 3/11/2019
Transport Mode On Message Displayed in DIC and/or Battery Light is Flashing

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

Released 1/24/2019
Warranty Administration - Battery Testing and Warranty Replacement Requirements (North America ONLY)

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
IPC Odometer Programming Method Quick Reference Guide

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

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

Released 8/22/2018
Engineering Information — Drivers Door Window Glass Out of Channel and/or Inoperative

Released 8/22/2018
Audio Volume Stuck High or Low with No DTCs

Released 8/22/2018
Information on Service Manuals Availability on USB

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

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

Released 8/3/2018
Safety Recall - Drivers Side Power Window Switch Inoperative

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 6/1/2018
Transport Mode On Message Displayed in DIC and/or Battery Light is Flashing

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

Released 4/26/2018
Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers

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 3/28/2018
Engineering Information — Drivers Door Window Glass Out of Channel and/or Inoperative

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

Released 3/27/2018
Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow Procedure as Outlined Below)

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 5/11/2017
Speedometer Indicates Lower Mph/Speeds Than Vehicle Is Actually Traveling (e.g. 5 mph when traveling 50 mph)

Released 1/26/2017
Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers

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

Released 11/1/2016
No Crank / No Start

Released 9/19/2016
Speedometer Indicates Lower Mph/Speeds Than Vehicle Is Actually Traveling (e.g. 5 mph when traveling 50 mph)

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

Released 8/17/2016
Service Update - Shortened Powered Accessory Availability

Released 4/28/2016
Decreased Battery Power, Reduced Upfitted Equipment Performance

Released 2/11/2016
2016 Chevrolet Express and GMC Savana Cargo and Cutaway Vans - Incorrect 7th Character of VIN

Released 1/14/2016
Service Update for Inventory and Customer Vehicles - Sliding Door Does Not Lock Manually and/or Outside Door Handle Breaks Off - Expires with Base Warranty

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

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

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

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

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

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

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

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

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

Released 11/10/2016
Service Update - Emergency Vehicles Used as Non-Emergency

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

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

Released 7/13/2016
Customer Satisfaction Program - Engine Stall During Deceleration

Released 6/28/2016
A New Way to Look at NOx Sensor Readings and Exhaust Temperature During a DPF Regeneration or a Reductant Fluid Quality Test

Released 6/14/2016
Transmission Control Module Reports VIN During I/M Test

Released 5/27/2016
Emergency Vehicle Reduced Power

Released 4/28/2016
Decreased Battery Power, Reduced Upfitted Equipment Performance

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 12/15/2015
2016 6.6L Duramax Engine Control Module Parts Restriction

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

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 5/8/2020
EPA Summer Grade Gasoline Waiver Allows Use of Winter Grade Surplus Potential Drivability Concerns P0300 P0171 P0174 P228C Fuel Smell Odor Longer Extended Cranking Time Hesitation Engine Stalls

Released 5/5/2020
Information on Fuel Injector Replacement Guidelines During Service, Malfunction Indicator Lamp (MIL) Illuminated - DTCs P0300-P0308, P050D, P0171, P0172, P0174, P0175, P2099, P219A, and/or P219B Set

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 11/25/2019
Special Coverage - Diesel Emission Fluid Tank Reservoir Replacement

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 6/19/2019
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 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 2/1/2018
Exhaust Leak or Vibration/Rattle Noise at Approximately 900 RPM, Fuel Smell, White Smoke, Oily Substance on Exhaust Downpipe

Released 8/31/2017
Turbocharger Whine Noise

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 6/12/2017
Information on Charge Air System Leaks, Malfunction Indicator Lamp (MIL) Illuminated - DTC’s P0101, P0263, P0266, P0269, P0272, P0275, P0278, P0281, P0284, P0299, P0712, P11CC, P11DC, P2002, P2459, P2463, P2627, P200C, P200E, P20EE, P22B6 and/or P2A0

Released 4/13/2017
Oil Leak from Turbocharger Inlet or Outlet Duct

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 10/5/2016
Information for Fleet Vehicles - Ignition Key, Fob and Key Rings Configuration

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

Released 8/9/2016
Information for Fleet Vehicles - Ignition Key, Fob and Key Rings Configuration

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

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

Released 4/22/2016
Intermittent Stalling on Deceleration Coming to Stops

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

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

Released 11/20/2019
Diagnostic Tip - Unable to Change HVAC Mode Defrost or Recirc Position

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

Released 11/7/2018
Safety Recall - Rear HVAC Controller Fire

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 1/17/2017
Service Update Bulletin - Rear Suspension Shackle Bolt Contacts HVAC Line

Released 11/21/2016
Air Conditioning Does Not Blow Cold

Released 10/17/2016
Service Update Bulletin - Rear Suspension Shackle Bolt Contacts HVAC Line

Released 10/8/2020
Misfire Template

Released 7/27/2020
Needle Bearings Found In The Oil Pan During An Oil Change

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

Released 6/25/2020
Diagnosing Fishbite Chuggle Misfire Feeling Or Shudder Vibration, With A Light Tip In

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 12/6/2019
Special Coverage - Diesel Emission Fluid Tank Reservoir Replacement

Released 11/26/2019
Malfunction Indicator Lamp (MIL) Illuminated - DTC P0741 Set

Released 11/25/2019
Special Coverage - Diesel Emission Fluid Tank Reservoir Replacement

Released 11/22/2019
GM TAC Support On Vehicle Automatic Transmission Concerns That Can Be Duplicated

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 4/8/2019
8L45, 8L90 Park System Does Not Engage

Released 4/4/2019
GM TAC Support On Vehicle Automatic Transmission Concerns That Can Be Duplicated

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 10/3/2018
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 8/14/2018
Surge, Chuggle, Misfire, Fishbite, Shudder Feel During Driving Maneuvers

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 5/11/2017
Speedometer Indicates Lower Mph/Speeds Than Vehicle Is Actually Traveling (e.g. 5 mph when traveling 50 mph)

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

Released 11/10/2016
Service Update - Emergency Vehicles Used as Non-Emergency

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 9/19/2016
Speedometer Indicates Lower Mph/Speeds Than Vehicle Is Actually Traveling (e.g. 5 mph when traveling 50 mph)

Released 7/13/2016
Customer Satisfaction Program - Engine Stall During Deceleration

Released 7/11/2016
Intermittent Stalling on Deceleration Coming to Stops

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

Released 6/7/2016
DTC P0777, Firm 3–2 Downshifts (Reprogram TCM)

Released 5/18/2016
Engine Runs Rough With Knock Noise and/or Backfire Pop Sound Coming From Air Filter

Released 4/28/2016
Decreased Battery Power, Reduced Upfitted Equipment Performance

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
2016 6.6L Duramax Engine Control Module Parts Restriction

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

Released 8/1/2015
Identifying Non-GM ECM Calibration Use and Power-up Hardware Detection in Duramax Diesel Engines Using GDS 2

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

Released 5/16/2015
Diagnostic Tips for DTC P0741: Torque Converter Clutch Stuck Off

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 12/8/2016
Customer Satisfaction Program - Passenger Outside Mirror Label Not Released in French

Released 11/18/2016
Customer Satisfaction Program - Missing USB Port

Released 11/3/2016
F/CMVSS - Cargo Vans/Cutaways Built Without Inside Rear View Mirror

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

Released 10/17/2016
Customer Satisfaction Program - Vehicles Built Without Tire Pressure Monitoring System (TPMS) (Canada Only)

Released 8/23/2016
Customer Satisfaction - Headliner Retrofit

Released 7/13/2016
Customer Satisfaction Program - Engine Stall During Deceleration

Released 6/14/2016
Transmission Control Module Reports VIN During I/M Test

Released 5/27/2016
Emergency Vehicle Reduced Power

Released 5/12/2016
FMVSS Noncompliance - Vehicles Built Without Tire Pressure Monitoring System (TPMS) - USA Only

Released 6/26/2020
Brake Pedal Moves or Self Applies at Full Turns

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 10/31/2019
Squeak Noise from Rear of Vehicle (Lubricate Rear Leaf Springs)

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 6/13/2019
Squeak Noise from Rear of Vehicle (Lubricate Rear Leaf Springs)

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 2/15/2019
GM of Canada New Vehicle Tire Warranty Program and GWM Transaction Submission Information

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 5/31/2018
Squeak Noise from Rear of Vehicle (Lubricate Rear Leaf Springs)

Released 3/26/2018
GM of Canada New Vehicle Tire Warranty Program and GWM Transaction Submission Information

Released 2/1/2018
Noncompliance Recall - Vehicles Built Without Tire Pressure Monitoring System (TPMS) - USA Only

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

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

Released 1/17/2017
Service Update Bulletin - Rear Suspension Shackle Bolt Contacts HVAC Line

Released 10/17/2016
Service Update Bulletin - Rear Suspension Shackle Bolt Contacts HVAC Line

Released 10/17/2016
Customer Satisfaction Program - Vehicles Built Without Tire Pressure Monitoring System (TPMS) (Canada Only)

Released 7/13/2016
Information on Incorrect Tire Valve Stems Being Installed

Released 6/14/2016
Information on Removal of Wheel Washers Prior to Installation of Outer Dual Rear Wheel

Released 5/12/2016
FMVSS Noncompliance - Vehicles Built Without Tire Pressure Monitoring System (TPMS) - USA Only

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 4/9/2020
Warranty Administration - Battery Testing and Warranty Replacement Requirements (North America ONLY)

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

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