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Recent Bulletins

 

BULLETINS

Body Repair

#PIE0736A - Engineering Information - Power Tonneau Cover is Inoperable - (Mar 17, 2023)

Related To: General Information / Bolted Exterior Body Panels and Closures / Vehicle Access Systems

Body Systems

#22-NA-209 - Articulating Running Board Inoperable - (Mar 23, 2023)

Related To: Vehicle Access Systems / Programming and Setup

#21-NA-184 - Window Regulator - Replace Power Window Regulator Electronics - (Mar 22, 2023)

Related To: Vehicle DTC Information / Fixed and Moveable Windows / Programming and Setup

#PIE0736A - Engineering Information - Power Tonneau Cover is Inoperable - (Mar 17, 2023)

Related To: General Information / Bolted Exterior Body Panels and Closures / Vehicle Access Systems

Diagnostic Overview, Starting Point, and Programming

#22-NA-235 - Wireless Charging is Intermittent When Using iPhone and Samsung Phones at Offset Positions - (Mar 24, 2023)

Related To: Entertainment / Programming and Setup

#22-NA-209 - Articulating Running Board Inoperable - (Mar 23, 2023)

Related To: Vehicle Access Systems / Programming and Setup

#23-NA-049 - Volume Selection Does Not Clear from DIC After Adjusting Volume - (Mar 23, 2023)

Related To: Programming and Setup / Displays and Gauges

#19-NA-219 - 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 - (Mar 23, 2023)

Related To: Engine Mechanical / Engine Controls / Vehicle DTC Information / Displays and Gauges / Engine Controls and Fuel

#23-NA-053 - Radio Software Version U168 Update - (Mar 22, 2023)

Related To: Entertainment / Programming and Setup

#21-NA-184 - Window Regulator - Replace Power Window Regulator Electronics - (Mar 22, 2023)

Related To: Vehicle DTC Information / Fixed and Moveable Windows / Programming and Setup

#23-NA-050 - Radio Software Version Z167 – Multiple Updates for IOK - (Mar 22, 2023)

Related To: Entertainment / Programming and Setup

#23-NA-038 - Harsh and/or Erratic Shifts After Over The Air (OTA) Update was Performed - (Mar 21, 2023)

Related To: Automatic Transmission / Programming and Setup

#22-NA-150 - Malfunction Indicator Lamp (MIL) Illuminated, Service Emission System and/or DEF Level Low Message on Driver Information Center (DIC), DEF Level Sensor Reading Incorrectly, DEF Level Sensor Being Erratic, DEF Level Sensor Stuck - (Mar 20, 2023)

Related To: Vehicle DTC Information / Programming and Setup

#21-NA-106 - Information on Transmission Related DTCs that Do Not Clear or Appear to Reset on the Next Engine Start After Completing a Transmission Repair - (Mar 17, 2023)

Related To: Automatic Transmission / Vehicle DTC Information

#18-NA-103 - Information on Diesel Fuel Gelling in Cold Temperatures Causing In-Tank Fuel Pump Whine and Driveability Concerns - (Mar 17, 2023)

Related To: Engine Controls / Vehicle DTC Information / Engine Controls and Fuel

Driveline/Axle

#21-NA-028 - Rear Axle Moan Type Noise on Turns - (Mar 22, 2023)

Related To: Rear Drive Axle / Maintenance and Lubrication

Driver Information and Entertainment

#22-NA-235 - Wireless Charging is Intermittent When Using iPhone and Samsung Phones at Offset Positions - (Mar 24, 2023)

Related To: Entertainment / Programming and Setup

#23-NA-049 - Volume Selection Does Not Clear from DIC After Adjusting Volume - (Mar 23, 2023)

Related To: Programming and Setup / Displays and Gauges

#19-NA-219 - 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 - (Mar 23, 2023)

Related To: Engine Mechanical / Engine Controls / Vehicle DTC Information / Displays and Gauges / Engine Controls and Fuel

#23-NA-053 - Radio Software Version U168 Update - (Mar 22, 2023)

Related To: Entertainment / Programming and Setup

#23-NA-050 - Radio Software Version Z167 – Multiple Updates for IOK - (Mar 22, 2023)

Related To: Entertainment / Programming and Setup

Engine

#23-NA-055 - EL-52800 – Diagnostic & Charge Battery Station (DCBS) – FAQs​ - (Mar 23, 2023)

Related To: Engine Electrical / General Information / Starting, Charging, and Low Voltage Energy Storage

#19-NA-219 - 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 - (Mar 23, 2023)

Related To: Engine Mechanical / Engine Controls / Vehicle DTC Information / Displays and Gauges / Engine Controls and Fuel

#03-06-04-017S - Information on Diesel Fuel Additives - (Mar 20, 2023)

Related To: Engine Controls / Engine Controls and Fuel

#00-06-01-026Q - Engine Replacement After Severe Internal Engine Damage - Replace Intake Manifold - (Mar 17, 2023)

Related To: Engine Mechanical / Engine Controls / Engine Controls and Fuel

#00-06-01-012M - Use of Surface Conditioning Disks When Cleaning Gasket Sealing Surfaces and/or Reused Parts - (Mar 17, 2023)

Related To: Engine Mechanical / Automatic Transmission

#18-NA-073 - Repair Guidelines for Engine Component Wear - (Mar 17, 2023)

Related To: Engine Mechanical

#22-NA-009 - Information on New Torque Specification and Installation Procedure for ACDelco Spin-On Oil Filters - (Mar 17, 2023)

Related To: Engine Mechanical / General Information / Maintenance and Lubrication / Engine Maintenance Information

#18-NA-103 - Information on Diesel Fuel Gelling in Cold Temperatures Causing In-Tank Fuel Pump Whine and Driveability Concerns - (Mar 17, 2023)

Related To: Engine Controls / Vehicle DTC Information / Engine Controls and Fuel

#16-NA-222 - Information for Engine Concerns Resulting from Lack of Scheduled Maintenance, Improper Service or Aftermarket Calibrations - (Mar 17, 2023)

Related To: Engine Mechanical

Engine/Propulsion

#23-NA-055 - EL-52800 – Diagnostic & Charge Battery Station (DCBS) – FAQs​ - (Mar 23, 2023)

Related To: Engine Electrical / General Information / Starting, Charging, and Low Voltage Energy Storage

#22-NA-083 - Requirements for Replacement of the Dual Mode Cord Set Under Warranty - (Mar 23, 2023)

Related To: General Information / Maintenance and Lubrication / Wiring Systems and Power Management / Plug-In Charging

#19-NA-219 - 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 - (Mar 23, 2023)

Related To: Engine Mechanical / Engine Controls / Vehicle DTC Information / Displays and Gauges / Engine Controls and Fuel

#22-NA-114 - Information on Forklift and Vehicle Hoist Requirements to Support Electric Vehicle (EV) High Voltage Battery Handling (U.S. Only) - (Mar 21, 2023)

Related To: General Information / Hybrid/EV Energy Storage / Hybrid/EV High Voltage Energy Storage

#03-06-04-017S - Information on Diesel Fuel Additives - (Mar 20, 2023)

Related To: Engine Controls / Engine Controls and Fuel

#20-NA-082 - Information on Excessive Diesel Exhaust Fluid (DEF) Usage - (Mar 20, 2023)

Related To: General Information / Maintenance and Lubrication / Exhaust

#00-06-01-026Q - Engine Replacement After Severe Internal Engine Damage - Replace Intake Manifold - (Mar 17, 2023)

Related To: Engine Mechanical / Engine Controls / Engine Controls and Fuel

#00-06-01-012M - Use of Surface Conditioning Disks When Cleaning Gasket Sealing Surfaces and/or Reused Parts - (Mar 17, 2023)

Related To: Engine Mechanical / Automatic Transmission

#18-NA-073 - Repair Guidelines for Engine Component Wear - (Mar 17, 2023)

Related To: Engine Mechanical

#22-NA-009 - Information on New Torque Specification and Installation Procedure for ACDelco Spin-On Oil Filters - (Mar 17, 2023)

Related To: Engine Mechanical / General Information / Maintenance and Lubrication / Engine Maintenance Information

#18-NA-103 - Information on Diesel Fuel Gelling in Cold Temperatures Causing In-Tank Fuel Pump Whine and Driveability Concerns - (Mar 17, 2023)

Related To: Engine Controls / Vehicle DTC Information / Engine Controls and Fuel

#16-NA-222 - Information for Engine Concerns Resulting from Lack of Scheduled Maintenance, Improper Service or Aftermarket Calibrations - (Mar 17, 2023)

Related To: Engine Mechanical

#18-NA-150 - 6.6L Duramax Diesel Engine Possible Oil Leak Path Information - (Mar 17, 2023)

Related To: General Information / Maintenance and Lubrication / Engine Mechanical

Engine/Propulsion MD

#23-NA-055 - EL-52800 – Diagnostic & Charge Battery Station (DCBS) – FAQs​ - (Mar 23, 2023)

Related To: Engine Electrical / General Information / Starting, Charging, and Low Voltage Energy Storage

#03-06-04-017S - Information on Diesel Fuel Additives - (Mar 20, 2023)

Related To: Engine Controls / Engine Controls and Fuel

#00-06-01-026Q - Engine Replacement After Severe Internal Engine Damage - Replace Intake Manifold - (Mar 17, 2023)

Related To: Engine Mechanical / Engine Controls / Engine Controls and Fuel

#18-NA-073 - Repair Guidelines for Engine Component Wear - (Mar 17, 2023)

Related To: Engine Mechanical

#22-NA-009 - Information on New Torque Specification and Installation Procedure for ACDelco Spin-On Oil Filters - (Mar 17, 2023)

Related To: Engine Mechanical / General Information / Maintenance and Lubrication / Engine Maintenance Information

#18-NA-103 - Information on Diesel Fuel Gelling in Cold Temperatures Causing In-Tank Fuel Pump Whine and Driveability Concerns - (Mar 17, 2023)

Related To: Engine Controls / Vehicle DTC Information / Engine Controls and Fuel

#16-NA-222 - Information for Engine Concerns Resulting from Lack of Scheduled Maintenance, Improper Service or Aftermarket Calibrations - (Mar 17, 2023)

Related To: Engine Mechanical

General Information

#23-NA-055 - EL-52800 – Diagnostic & Charge Battery Station (DCBS) – FAQs​ - (Mar 23, 2023)

Related To: Engine Electrical / General Information / Starting, Charging, and Low Voltage Energy Storage

#22-NA-083 - Requirements for Replacement of the Dual Mode Cord Set Under Warranty - (Mar 23, 2023)

Related To: General Information / Maintenance and Lubrication / Wiring Systems and Power Management / Plug-In Charging

#21-NA-028 - Rear Axle Moan Type Noise on Turns - (Mar 22, 2023)

Related To: Rear Drive Axle / Maintenance and Lubrication

#22-NA-114 - Information on Forklift and Vehicle Hoist Requirements to Support Electric Vehicle (EV) High Voltage Battery Handling (U.S. Only) - (Mar 21, 2023)

Related To: General Information / Hybrid/EV Energy Storage / Hybrid/EV High Voltage Energy Storage

#22-NA-018 - Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only) - (Mar 20, 2023)

Related To: General Information

#21-NA-043 - Properly Maintaining Vehicles in Dealer Inventory - (Mar 20, 2023)

Related To: General Information / Maintenance and Lubrication

#23-NA-047 - Dust, Snow or Water Around Fuel Filler Area - (Mar 20, 2023)

Related To: General Information

#20-NA-082 - Information on Excessive Diesel Exhaust Fluid (DEF) Usage - (Mar 20, 2023)

Related To: General Information / Maintenance and Lubrication / Exhaust

#22-NA-009 - Information on New Torque Specification and Installation Procedure for ACDelco Spin-On Oil Filters - (Mar 17, 2023)

Related To: Engine Mechanical / General Information / Maintenance and Lubrication / Engine Maintenance Information

#18-NA-150 - 6.6L Duramax Diesel Engine Possible Oil Leak Path Information - (Mar 17, 2023)

Related To: General Information / Maintenance and Lubrication / Engine Mechanical

#PIE0736A - Engineering Information - Power Tonneau Cover is Inoperable - (Mar 17, 2023)

Related To: General Information / Bolted Exterior Body Panels and Closures / Vehicle Access Systems

General Information MD

#21-NA-043 - Properly Maintaining Vehicles in Dealer Inventory - (Mar 20, 2023)

Related To: General Information / Maintenance and Lubrication

Hybrid Propulsion

#22-NA-114 - Information on Forklift and Vehicle Hoist Requirements to Support Electric Vehicle (EV) High Voltage Battery Handling (U.S. Only) - (Mar 21, 2023)

Related To: General Information / Hybrid/EV Energy Storage / Hybrid/EV High Voltage Energy Storage

Power and Signal Distribution

#22-NA-083 - Requirements for Replacement of the Dual Mode Cord Set Under Warranty - (Mar 23, 2023)

Related To: General Information / Maintenance and Lubrication / Wiring Systems and Power Management / Plug-In Charging

Transmission/Transaxle

#23-NA-038 - Harsh and/or Erratic Shifts After Over The Air (OTA) Update was Performed - (Mar 21, 2023)

Related To: Automatic Transmission / Programming and Setup

#16-NA-019 - Information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares - (Mar 21, 2023)

Related To: Automatic Transmission

#21-NA-106 - Information on Transmission Related DTCs that Do Not Clear or Appear to Reset on the Next Engine Start After Completing a Transmission Repair - (Mar 17, 2023)

Related To: Automatic Transmission / Vehicle DTC Information

#00-06-01-012M - Use of Surface Conditioning Disks When Cleaning Gasket Sealing Surfaces and/or Reused Parts - (Mar 17, 2023)

Related To: Engine Mechanical / Automatic Transmission

PRELIMINARY INFORMATION

Brakes

#PIT5994 - Diagnostic Tip for Reduced or Low Engine Power on Acceleration - (Mar 24, 2023)

Related To: Engine Controls / Antilock Brake System / Automatic Transmission / Engine Controls and Fuel

Driver Information and Entertainment

#PIT5914A - Trailering App Non-Functional, Radio Display Is Blank When App Is Opened - (Mar 23, 2023)

Related To: Entertainment

#PIT5784B - Rear Seat Media Headphone Information - (Mar 21, 2023)

Related To: Entertainment

Engine

#PIT5994 - Diagnostic Tip for Reduced or Low Engine Power on Acceleration - (Mar 24, 2023)

Related To: Engine Controls / Antilock Brake System / Automatic Transmission / Engine Controls and Fuel

Engine/Propulsion

#PIP5876A - 3.0L LZ0 E66 ECM Part Restriction Has Ended - (Mar 24, 2023)

Related To: Engine Mechanical

#PIP5906 - 2024 6.6L Diesel Engine (L5P) Engine Exchange Program - (Mar 24, 2023)

Related To: Engine Mechanical

#PIT5994 - Diagnostic Tip for Reduced or Low Engine Power on Acceleration - (Mar 24, 2023)

Related To: Engine Controls / Antilock Brake System / Automatic Transmission / Engine Controls and Fuel

#PIT5993 - No Crank Due To Dead Battery / Battery Draw / Unwanted Alarm - (Mar 23, 2023)

Related To: Theft Deterrent / Starting, Charging, and Low Voltage Energy Storage

#PIT5925A - HUMMER EV Check Engine Lamp & Service High Voltage System Message with DTC: P0494 - (Mar 23, 2023)

Related To: Engine Heating and Cooling

#PIP5912 - LZ0 setting DTCs P0402 P049C P054E P1089 P140C P149A P2203 P22A1 P23AF P242B P2459 P2463 and/or P261F - (Mar 22, 2023)

Related To: Engine Controls and Fuel

#PIT5636C - SES MIL DTC P1005 - (Mar 21, 2023)

Related To: Engine Controls and Fuel

#PIP5911 - SES LIGHT ON – P066A P066C P066E P067A P067C P067E P068C P068E - (Mar 21, 2023)

Related To: Automatic Transmission / Engine Mechanical / Engine Controls and Fuel

#PIT5887B - Diagnostic Aid: Intermittent Vehicle Powers Up But Will Not Crank - (Mar 17, 2023)

Related To: Starting, Charging, and Low Voltage Energy Storage

HVAC

#PIT5878C - HUMMER EV & LYRIQ BEV Heat - Defrost - AC - Battery Cooling - and Air Conditioning Performance Concerns - (Mar 23, 2023)

Related To: Heating, Ventilation and Air Conditioning

Safety and Security

#PIT5993 - No Crank Due To Dead Battery / Battery Draw / Unwanted Alarm - (Mar 23, 2023)

Related To: Theft Deterrent / Starting, Charging, and Low Voltage Energy Storage

#PIT5992 - Diagnostic Aid: Intermittent No Start. Keyless Entry Inoperative Possible B3031 Or Customer May Note Ready For Fob Message - (Mar 17, 2023)

Related To: Remote Functions

Suspension

#PIT5872B - HUMMER EV Pop/Creak Type Noise While Sitting Stationary and Turning Steering Wheel With Brakes Applied - (Mar 23, 2023)

Related To: Front Suspension

Transmission/Transaxle

#PIT5994 - Diagnostic Tip for Reduced or Low Engine Power on Acceleration - (Mar 24, 2023)

Related To: Engine Controls / Antilock Brake System / Automatic Transmission / Engine Controls and Fuel

#PIP5911 - SES LIGHT ON – P066A P066C P066E P067A P067C P067E P068C P068E - (Mar 21, 2023)

Related To: Automatic Transmission / Engine Mechanical / Engine Controls and Fuel