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Technical Service Bulletins

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

Released 7/27/2020
Fuel Leak Under Vehicle, Fuel Odor

TSB Description

Released 7/13/2020
GE-52250 Power Smoke Diagnostic Leak Detector Turbocharger Charge Air And Induction System Tester MIL Reduced Engine Power

Released 7/10/2020
Diagnosing Fishbite Chuggle Misfire Feeling Or Shudder Vibration, With A Light Tip In

Released 6/17/2020
6.0L L96 Low Oil Pressure And/Or P0521

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

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

Released 2/28/2020
Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules

Released 1/10/2020
Diagnostic Tips for Engine Vibration

Released 10/14/2019
Information on Diesel Fuel Additives

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

Released 9/5/2019
Concerns or Questions Regarding Installation of Dealer Installed Accessories

Released 10/16/2020
Engineering Information - Front Door that Can Not Be Opened From the Inside or Outside

Released 9/30/2020
Warranty Administration - Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only)

TSB Description

Released 8/3/2020
Procedure For Attaching GDS2 Session Logs To Technical Assistance Cases Using Dealer Case Management (DCM) (US Dealers Only).

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 10/9/2020
Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers

Released 9/18/2020
Instrument Panel Cluster (IPC) Gauges Inoperative, Numerous Driver information Center (DIC) Error Messages, No Brake or Electric Power Steering Assist, Transmission in Default Gear, No Reverse and/or Back Up Lights, No Daytime Running Lights (DRL), No Cru

TSB Description

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

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 10/16/2020
Engineering Information - Front Door that Can Not Be Opened From the Inside or Outside

Released 10/9/2020
Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers

TSB Description

Released 9/18/2020
Instrument Panel Cluster (IPC) Gauges Inoperative, Numerous Driver information Center (DIC) Error Messages, No Brake or Electric Power Steering Assist, Transmission in Default Gear, No Reverse and/or Back Up Lights, No Daytime Running Lights (DRL), No Cru

Released 7/24/2020
Diagnostic Tip - Security Light on Intermittently / No Crank/No Start or Start Stall / Keyless Access Vehicles May Display No Remote/Fob Detected / Poor or No RKE Range / Service TPM

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 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 3/17/2020
8L45 8L90 Internal Wiring Harness Part Numbers By Application

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 10/22/2019
Binding and/or Clunking Noise Heard While Operating the Front Door Windows

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

Released 7/27/2020
Fuel Leak Under Vehicle, Fuel Odor

Released 5/21/2020
Misfire Template

TSB Description

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 4/7/2020
Information on Excessive Diesel Exhaust Fluid (DEF) Usage

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 10/14/2019
Diagnostic Tip for Misfire, Malfunction Indicator Lamp (MIL) Illuminated - DTCs P0300, P0301, P0302, P0303 and/or P0304

Released 10/9/2020
Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers

Released 7/27/2020
AC Blows Warm or Poor Performance

TSB Description

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

Released 10/13/2020
Information on Diesel Exhaust Fluid (DEF) Pump Unable to Build Pressure After Replacement

Released 10/9/2020
Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers

TSB Description

Released 10/8/2020
Misfire Template

Released 9/18/2020
Instrument Panel Cluster (IPC) Gauges Inoperative, Numerous Driver information Center (DIC) Error Messages, No Brake or Electric Power Steering Assist, Transmission in Default Gear, No Reverse and/or Back Up Lights, No Daytime Running Lights (DRL), No Cru

Released 9/11/2020
Diagnostic Tips For P0708 Setting On Vehicles Equipped With 8L45 8L90 10L60 10L80 10L90 Transmissions

Released 9/9/2020
Delayed and/or Harsh Engagement of Transmission Shift After Vehicle Sitting with Engine Off

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

Released 7/10/2020
Diagnosing Fishbite Chuggle Misfire Feeling Or Shudder Vibration, With A Light Tip In

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

Released 6/17/2020
6.0L L96 Low Oil Pressure And/Or P0521

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

Released 5/21/2020
Misfire Template

Released 5/15/2020
Service Update - Software Update for Internal Range Sensor Failure

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 5/5/2020
8L45 8L90 Internal Wiring Harness Part Numbers By Application

Released 4/9/2020
Diagnostic Tips For P0708 Setting On Vehicles Equipped With 8L45 8L90 10L60 10L80 10L90 Transmissions

Released 3/17/2020
8L45 8L90 Internal Wiring Harness Part Numbers By Application

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

Released 2/26/2020
Information on Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) Usage

Released 1/17/2020
8L45 8L90 Internal Wiring Harness Part Numbers By Application

Released 1/17/2020
Engineering Information - 8 Speed Transmission Shift Quality

Released 1/13/2020
Engineering Information – 8 Speed Transmission Shift Quality

Released 1/10/2020
Diagnostic Tips for Engine Vibration

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
Diagnostic Tip for Misfire, Malfunction Indicator Lamp (MIL) Illuminated - DTCs P0300, P0301, P0302, P0303 and/or P0304

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 10/9/2020
Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers

Released 8/14/2020
Warranty Administration - General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only)

TSB Description

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 9/18/2020
Instrument Panel Cluster (IPC) Gauges Inoperative, Numerous Driver information Center (DIC) Error Messages, No Brake or Electric Power Steering Assist, Transmission in Default Gear, No Reverse and/or Back Up Lights, No Daytime Running Lights (DRL), No Cru

Released 9/2/2020
Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information

TSB Description

Released 7/13/2020
GE-52250 Power Smoke Diagnostic Leak Detector Turbocharger Charge Air And Induction System Tester MIL Reduced Engine Power

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 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

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