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Recent Bulletins
| 22-NA-254 |
Unwanted Traction Control Events Bulletin / Technical / Programming and Setup / Driver Assistance Systems |
Jan 27 |
| PIP5841B |
Diagnostic Tip: DTC P04FB Due To Possible Condensation Freezing In Crankcase Pressure Sensor Assembly Bulletin / Preliminary Information / Engine Controls and Fuel |
Jan 27 |
| PIC6489A |
No Bluetooth Audio Via Phone Call Placed or Incoming Call Bulletin / Preliminary Information / Displays and Gauges |
Jan 27 |
| PIT5973A |
Dead Battery After Recall N222386380 and / or Unwanted Liftgate Opening Bulletin / Preliminary Information / Vehicle Access Systems / Wiring Systems and Power Management / Starting, Charging, and Low Voltage Energy Storage |
Jan 27 |
| PIP5898 |
Rear Axle Leak Bulletin / Preliminary Information / Engine Mechanical / Rear Drive Axle |
Jan 27 |
| N222391080 |
Safety Recall - Defective Suspension Nuts Campaign / Safety / Front Axle and Suspension |
Jan 27 |
| PIE0731A |
Engineering Information - Malfunction Indicator Lamp (MIL) Illuminated On Driver Information Center (DIC), DTC P122D Set Bulletin / Engineering Information / General Information / Engine Mechanical / Engine Controls and Fuel |
Jan 27 |
| 22-NA-015 |
Diagnostic Tips on GDS Graphing after Road-Test, for Shake and/or Shudder During Steady and/or Light Throttle Acceleration Between 25 and 50 MPH (40 and 80 KM/H) at Steady Speed, and Decel at approximately 15 MPH (24 KM/H). Bulletin / Information / Automatic Transmission |
Jan 26 |
| N222388520 |
Service Update - Starter Bolts Not Properly Torqued Campaign / Service Update / Wire and Connector Repair |
Jan 26 |
| PIE0721A |
Engineering Information - Roof Panel Joint Finish Molding Detached and/or Loose from Roof Retaining Clip Bulletin / Engineering Information / General Information / Exterior Trim |
Jan 26 |
| 19-NA-037 |
No Start, Hard Start with Belt Squeal, Belt Break, Loss of Power Steering and/or Power Brake Assist Bulletin / Technical / Hydraulic Brakes / Power Steering / Waterleaks / Starting, Charging, and Low Voltage Energy Storage |
Jan 26 |
| PIT5946B |
Check Engine Lamp With DTC: P0606 set in the Body Control Module Bulletin / Preliminary Information / Data Communications |
Jan 26 |
| PIC6458A |
2023 Cadillac LYRIQ TAC Parts Restriction Program for ESC Parts (Unique parts located at the Electronic Service Centers) Bulletin / Preliminary Information / Entertainment |
Jan 25 |
| 22-NA-151 |
DTC P0BBD Diagnosis and Repair Bulletin / Technical / Vehicle DTC Information / Hybrid/EV Energy Storage / Programming and Setup / Hybrid/EV High Voltage Energy Storage |
Jan 25 |
| 20-NA-203 |
Information on Manual Regeneration Displayed on Drivers Information Center (DIC) Bulletin / Information / Exhaust |
Jan 25 |
| 19-NA-107 |
Extended Cab Rear Door Ajar Indicator Illuminated Intermittently Bulletin / Technical / Bolted Exterior Body Panels and Closures / Vehicle Access Systems / Displays and Gauges |
Jan 25 |
| PIE0719A |
Engineering Information - Fuel Leaking from Evaporative Vents On Fuel Tank Bulletin / Engineering Information / General Information / Engine Controls and Fuel |
Jan 25 |
| PIP5891C |
SES Lamp Illuminated with DTCs P30D4 P2B95 P02EE P02EF P02F0 P02F1 P02F2 P02F3 P02F4 P02F5 P2B08 P2B09 P2B0A P2B0B P2B0C P2B0D P2B0E P2B0F or P0201 - P0208 Active or Stored in History Bulletin / Preliminary Information / Engine Controls and Fuel |
Jan 25 |
| PIT5949A |
Overhead Roof Console Inoperative / Service Safety Restraints Message / Sunroof Inoperative / Dome Lights Inoperative / DTCs B1A7A and U1121 Bulletin / Preliminary Information / Sunroof / Supplemental Restraints |
Jan 25 |
| PIT5968A |
Heated Seats Selection Missing On Radio Display After Performing N212354521 Bulletin / Preliminary Information / Heating, Ventilation and Air Conditioning |
Jan 24 |
| PIT5971 |
Loss Of Audio And OnStar LED Is Red Bulletin / Preliminary Information / Displays and Gauges |
Jan 24 |
| 21-NA-138 |
Squeak, Grind or Clunking Noise from Rear Leaf Springs Bulletin / Technical / Suspension General Diagnosis / Rear Suspension |
Jan 24 |
| 21-NA-095 |
Malfunction Indicator Lamp (MIL) Illuminated - DTC P1488 or P24DA Set Bulletin / Technical / Exhaust / Vehicle DTC Information |
Jan 24 |
| PIT5970 |
Zoomed In - Pointed Downward Rear - View Camera Bulletin / Preliminary Information / Displays and Gauges |
Jan 24 |
| 23-NA-002 |
Charge Air Cooler (CAC) Icing, Check Engine Lamp Illuminated, Possible P0299, P2227, and/or P0300 DTCs Set Bulletin / Technical / Vehicle DTC Information / Programming and Setup / Engine Heating and Cooling |
Jan 24 |
| N222362040 |
Service Update - Rear Brake Line Inspect for Clearance Campaign / Service Update / Hydraulic Brakes |
Jan 24 |
| PIT5972 |
Informational Settings Icon Greyed Out on Radio Screen Bulletin / Preliminary Information / Entertainment |
Jan 23 |
| PIP5886A |
3.0L LZ0 Exhaust Gas Temperature Sensors (EGTs) Part Restriction has ended Bulletin / Preliminary Information / Engine Mechanical |
Jan 23 |
| PIP5878A |
3.0L LZ0 Exhaust Particulate Matter (PM) Sensor Part Restriction has ended Bulletin / Preliminary Information / Engine Mechanical |
Jan 23 |
| PIP5877A |
3.0L LZ0 NOx Sensor Part Restriction has ended Bulletin / Preliminary Information / Engine Mechanical |
Jan 23 |
| PIP5875A |
3.0L LZ0 DEF Injector Part Restriction has ended Bulletin / Preliminary Information / Engine Mechanical |
Jan 23 |
| 21-NA-281 |
Diagnostic Tip - Transmission Neutral Service Mode Bulletin / Information / Automatic Transmission / General Information |
Jan 23 |
| PIC6488 |
Required Sequence of Steps When Programming Replacement Radios Bulletin / Preliminary Information / Entertainment / Programming and Setup |
Jan 23 |
| PIC6487 |
Popping Noise When Going Over Bumps or Turning Maneuvers When Parking Bulletin / Preliminary Information / Frame and Underbody |
Jan 23 |
| N212355140 |
Service Update - Diesel Engine Incorrect Calibration Campaign / Service Update / Engine Controls and Fuel |
Jan 23 |
| PIC6486A |
Apple CarPlay Projection Pixilated/Blurry/Distorted – IOR Radio Bulletin / Preliminary Information / Entertainment |
Jan 23 |
| 22-NA-113 |
Head Up Display (HUD) Blank, Non-Responsive to Brightness, Aim, or Page Controls, DTC U0158 Set Bulletin / Technical / Vehicle DTC Information / Programming and Setup / Displays and Gauges |
Jan 20 |
| 21-NA-127 |
Head Up Display (HUD) Blank, Non-Responsive to Brightness, Aim, or Page Controls - DTC U1518 Set Bulletin / Technical / Vehicle DTC Information / Programming and Setup / Displays and Gauges |
Jan 20 |
| 19-NA-218 |
Ticking Noise from the Engine Bulletin / Technical / Vehicle DTC Information / Engine Mechanical |
Jan 20 |
| 02-00-89-002U |
Information for Dealers/Technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only) Bulletin / Information / General Information |
Jan 20 |
| 18-NA-279 |
Information on Passive Door Unlocking Inoperative and/or Enabling and Disabling of Passive Unlocking Bulletin / Information / Programming and Setup / Remote Functions |
Jan 20 |
| 20-NA-130 |
Information on Message Illuminated in DIC, DTC B094C (39) Set Bulletin / Information / Vehicle DTC Information / Mirrors / Displays and Gauges / Wiring Systems and Power Management / Wire and Connector Repair |
Jan 20 |
| N222373320 |
Safety Recall - Rear View Camera Intermittent or Inoperative Campaign / Safety / Programming and Setup |
Jan 20 |
| 22-NA-217 |
Malfunction Indicator Lamp (MIL) Illuminated - DTC P0442 Set Bulletin / Technical / Vehicle DTC Information / Engine Controls and Fuel |
Jan 20 |
| 22-NA-232 |
Diagnostic Tip for 10 Speed Oil Pump Drive Gear Bulletin / Information / Automatic Transmission |
Jan 20 |
| 21-NA-290 |
Wrinkle or Bubble in Stripe or Hood Wrap forming Around Outer Edges of Hood Air Scoop Bulletin / Technical / Exterior Trim / Bolted Exterior Body Panels and Closures |
Jan 20 |
| N222390630 |
Customer Satisfaction Program - Double Charge For Red Brake Calipers Campaign / Customer Satisfaction / General Information |
Jan 20 |
| 22-NA-248 |
HVAC Heat Intermittently Inoperative, DTCs B2B05 and/or B2B06 Set Bulletin / Technical / Heating, Ventilation and Air Conditioning / General Information |
Jan 19 |
| 22-NA-249 |
Add-on Accessories Intermittently Lose Power Bulletin / Technical / Wire and Connector Repair |
Jan 19 |
| PIE0684B |
Engineering Information - Malfunction Indicator Lamp (MIL) Illuminated On the Driver Information Center (DIC), DTC’s P0171, P0174 Set Bulletin / Engineering Information / General Information / Engine Controls and Fuel |
Jan 19 |
About This Website
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
1/30/2023
11227 documents were updated
2062 images were updated
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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