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Recent Bulletins
| 22-NA-235 |
Wireless Charging is Intermittent When Using iPhone and Samsung Phones at Offset Positions Bulletin / Technical / Entertainment / Programming and Setup |
Mar 24 |
| PIP5876A |
3.0L LZ0 E66 ECM Part Restriction Has Ended Bulletin / Preliminary Information / Engine Mechanical |
Mar 24 |
| PIP5906 |
2024 6.6L Diesel Engine (L5P) Engine Exchange Program Bulletin / Preliminary Information / Engine Mechanical |
Mar 24 |
| 23-NA-052 |
Information on Transfer Case Cost Comparison Instruction Bulletin / Information / Transfer Case |
Mar 24 |
| PIT5994 |
Diagnostic Tip for Reduced or Low Engine Power on Acceleration Bulletin / Preliminary Information / Engine Controls / Antilock Brake System / Automatic Transmission / Engine Controls and Fuel |
Mar 24 |
| 23-NA-055 |
EL-52800 – Diagnostic & Charge Battery Station (DCBS) – FAQsâ Bulletin / Information / Engine Electrical / General Information / Starting, Charging, and Low Voltage Energy Storage |
Mar 23 |
| 22-NA-083 |
Requirements for Replacement of the Dual Mode Cord Set Under Warranty Bulletin / Technical / General Information / Maintenance and Lubrication / Wiring Systems and Power Management / Plug-In Charging |
Mar 23 |
| 22-NA-209 |
Articulating Running Board Inoperable Bulletin / Technical / Vehicle Access Systems / Programming and Setup |
Mar 23 |
| PIT5993 |
No Crank Due To Dead Battery / Battery Draw / Unwanted Alarm Bulletin / Preliminary Information / Theft Deterrent / Starting, Charging, and Low Voltage Energy Storage |
Mar 23 |
| 23-NA-049 |
Volume Selection Does Not Clear from DIC After Adjusting Volume Bulletin / Technical / Programming and Setup / Displays and Gauges |
Mar 23 |
| PIT5878C |
HUMMER EV & LYRIQ BEV Heat - Defrost - AC - Battery Cooling - and Air Conditioning Performance Concerns Bulletin / Preliminary Information / Heating, Ventilation and Air Conditioning |
Mar 23 |
| 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 Bulletin / Information / Engine Mechanical / Engine Controls / Vehicle DTC Information / Displays and Gauges / Engine Controls and Fuel |
Mar 23 |
| PIT5925A |
HUMMER EV Check Engine Lamp & Service High Voltage System Message with DTC: P0494 Bulletin / Preliminary Information / Engine Heating and Cooling |
Mar 23 |
| PIT5872B |
HUMMER EV Pop/Creak Type Noise While Sitting Stationary and Turning Steering Wheel With Brakes Applied Bulletin / Preliminary Information / Front Suspension |
Mar 23 |
| PIT5914A |
Trailering App Non-Functional, Radio Display Is Blank When App Is Opened Bulletin / Preliminary Information / Entertainment |
Mar 23 |
| 23-NA-053 |
Radio Software Version U168 Update Bulletin / Technical / Entertainment / Programming and Setup |
Mar 22 |
| N212343881-06 |
Safety Recall - High Voltage Battery May Melt or Burn Campaign / Safety / Hybrid/EV Energy Storage / Hybrid/EV High Voltage Energy Storage |
Mar 22 |
| N222371150-02 |
Customer Satisfaction Program - Heated Steering Wheel Retrofit – Module Only Campaign / Customer Satisfaction / Steering Wheel and Column |
Mar 22 |
| 21-NA-184 |
Window Regulator - Replace Power Window Regulator Electronics Bulletin / Technical / Vehicle DTC Information / Fixed and Moveable Windows / Programming and Setup |
Mar 22 |
| 23-NA-050 |
Radio Software Version Z167 – Multiple Updates for IOK Bulletin / Technical / Entertainment / Programming and Setup |
Mar 22 |
| 21-NA-028 |
Rear Axle Moan Type Noise on Turns Bulletin / Technical / Rear Drive Axle / Maintenance and Lubrication |
Mar 22 |
| PIC6497 |
Click or Tick Noise When Adjusting HVAC Temperature Bulletin / Preliminary Information / Heating, Ventilation and Air Conditioning |
Mar 22 |
| PIP5912 |
LZ0 setting DTCs P0402 P049C P054E P1089 P140C P149A P2203 P22A1 P23AF P242B P2459 P2463 and/or P261F Bulletin / Preliminary Information / Engine Controls and Fuel |
Mar 22 |
| PIT5784B |
Rear Seat Media Headphone Information Bulletin / Preliminary Information / Entertainment |
Mar 21 |
| 22-NA-114 |
Information on Forklift and Vehicle Hoist Requirements to Support Electric Vehicle (EV) High Voltage Battery Handling (U.S. Only) Bulletin / Information / General Information / Hybrid/EV Energy Storage / Hybrid/EV High Voltage Energy Storage |
Mar 21 |
| 23-NA-038 |
Harsh and/or Erratic Shifts After Over The Air (OTA) Update was Performed Bulletin / Technical / Automatic Transmission / Programming and Setup |
Mar 21 |
| N222381740 |
Service Update - Air Conditioning Compressor Early Failure Campaign / Service Update / Heating, Ventilation and Air Conditioning |
Mar 21 |
| PIT5636C |
SES MIL DTC P1005 Bulletin / Preliminary Information / Engine Controls and Fuel |
Mar 21 |
| 16-NA-019 |
Information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares Bulletin / Information / Automatic Transmission |
Mar 21 |
| PIP5911 |
SES LIGHT ON – P066A P066C P066E P067A P067C P067E P068C P068E Bulletin / Preliminary Information / Automatic Transmission / Engine Mechanical / Engine Controls and Fuel |
Mar 21 |
| 23-NA-051 |
Information on New Cell Chemistry N2.2A Vehicle/Pack Identification Bulletin / Information / General Information / Hybrid/EV Energy Storage / Hybrid/EV High Voltage Energy Storage |
Mar 20 |
| 22-NA-018 |
Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only) Bulletin / Information / General Information |
Mar 20 |
| PIP5848A |
Diagnostic Tip – Diagnosing AWD Driveline Concerns Bulletin / Preliminary Information / Front Drive Axle |
Mar 20 |
| 21-NA-043 |
Properly Maintaining Vehicles in Dealer Inventory Bulletin / Information / General Information / Maintenance and Lubrication |
Mar 20 |
| 03-06-04-017S |
Information on Diesel Fuel Additives Bulletin / Information / Engine Controls / Engine Controls and Fuel |
Mar 20 |
| 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 Bulletin / Technical / Vehicle DTC Information / Programming and Setup |
Mar 20 |
| 23-NA-047 |
Dust, Snow or Water Around Fuel Filler Area Bulletin / Information / General Information |
Mar 20 |
| 21-NA-151 |
Front Headlamp Protective Tape Peeling Bulletin / Technical / Lighting Systems |
Mar 20 |
| 20-NA-082 |
Information on Excessive Diesel Exhaust Fluid (DEF) Usage Bulletin / Information / General Information / Maintenance and Lubrication / Exhaust |
Mar 20 |
| 00-06-01-026Q |
Engine Replacement After Severe Internal Engine Damage - Replace Intake Manifold Bulletin / Information / Engine Mechanical / Engine Controls / Engine Controls and Fuel |
Mar 17 |
| 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 Bulletin / Information / Automatic Transmission / Vehicle DTC Information |
Mar 17 |
| 00-06-01-012M |
Use of Surface Conditioning Disks When Cleaning Gasket Sealing Surfaces and/or Reused Parts Bulletin / Information / Engine Mechanical / Automatic Transmission |
Mar 17 |
| PIT5992 |
Diagnostic Aid: Intermittent No Start. Keyless Entry Inoperative Possible B3031 Or Customer May Note Ready For Fob Message Bulletin / Preliminary Information / Remote Functions |
Mar 17 |
| 18-NA-073 |
Repair Guidelines for Engine Component Wear Bulletin / Information / Engine Mechanical |
Mar 17 |
| PIT5887B |
Diagnostic Aid: Intermittent Vehicle Powers Up But Will Not Crank Bulletin / Preliminary Information / Starting, Charging, and Low Voltage Energy Storage |
Mar 17 |
| 22-NA-009 |
Information on New Torque Specification and Installation Procedure for ACDelco Spin-On Oil Filters Bulletin / Information / Engine Mechanical / General Information / Maintenance and Lubrication / Engine Maintenance Information |
Mar 17 |
| 18-NA-103 |
Information on Diesel Fuel Gelling in Cold Temperatures Causing In-Tank Fuel Pump Whine and Driveability Concerns Bulletin / Information / Engine Controls / Vehicle DTC Information / Engine Controls and Fuel |
Mar 17 |
| 16-NA-222 |
Information for Engine Concerns Resulting from Lack of Scheduled Maintenance, Improper Service or Aftermarket Calibrations Bulletin / Information / Engine Mechanical |
Mar 17 |
| 18-NA-150 |
6.6L Duramax Diesel Engine Possible Oil Leak Path Information Bulletin / Information / General Information / Maintenance and Lubrication / Engine Mechanical |
Mar 17 |
| 22-NA-067 |
Poor Engine Performance, PCV Bypass Hose and Charge Air Cooler (CAC) Restricted for LUV Engines, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0299, P0234, P0236, P2261, P2227, P00C7 Set Bulletin / Technical / Engine Controls / Vehicle DTC Information / Displays and Gauges / Engine Controls and Fuel |
Mar 17 |
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Contained within this site is information for most domestic GM models built since 1995. We have built a custom web-based application using our unique tree-based navigation and combined it with a weekly feed of updated information from GM to create a solution for your repair and diagnosis needs. Our focus is on making the information easy to find, enabling you to increase your shop's efficiency.
Subscriptions start as low as $15.00 and rates thereafter are available in a number of formats — daily, weekly, monthly or yearly.
Service Manuals
Including repair instructions, diagnostic information and procedures, specifications, schematic and routing diagrams and component locators for all modules on a vehicle.
Bulletins
Release information in a number of categories including campaign, technical, information, warranty administration, engineering information, and advanced service information.
Last Update
3/27/2023
12846 documents were updated
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We receive updates directly from GM and process them immediately so that our system will have the most up-to-date information available, directly from the manufacturer. Updates occur on a weekly basis.
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