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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) – FAQsâ - (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) – FAQsâ - (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) – FAQsâ - (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) – FAQsâ - (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
CAMPAIGNS
Steering
#N222371150-02 - Customer Satisfaction Program - Heated Steering Wheel Retrofit – Module Only - (Mar 22, 2023)
Related To: Steering Wheel and Column
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