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Recent Bulletins
| PIT6060 |
Unable To Complete Calibration For Transparent Trailer / Jack Knife Alert / Trailer Length Indicator / Biasing View / Rear Trailer Guidelines / Articulation Angle Indicator Bulletin / Preliminary Information / Trailering Systems |
Sep 15 |
| PIT6059 |
Super Cruise Unavailable Message Bulletin / Preliminary Information / Cruise Control / Driver Assistance Systems |
Sep 15 |
| 23-NA-142 |
No Forward Gear When Shifting from Park to Drive and/or Reverse to Drive Bulletin / Technical / Automatic Transmission |
Sep 15 |
| PIT5936C |
Headlights On During Daylight Condition DTC B108E Bulletin / Preliminary Information / Lighting Systems |
Sep 15 |
| 23-NA-161 |
Cruise Control Tap to Increase Speed Does Not Match Owners Manual Bulletin / Technical / Programming and Setup / Cruise Control / Engine Controls and Fuel |
Sep 15 |
| 20-NA-051 |
Alpine Radio Exchange Program Bulletin / Information / Entertainment |
Sep 15 |
| 23-NA-149 |
Trailer Brake Disabled and/or DTC C1114 Stored During Pulling a Trailer with a Battery, Generator or Solar Charger Bulletin / Technical / General Information / Trailer Brake Controls |
Sep 15 |
| PIT6054A |
Multifunction Inner Tailgate Disabling Procedure Inoperative Bulletin / Preliminary Information / Interior Trim and Paneling / Bolted Exterior Body Panels and Closures / Vehicle Access Systems |
Sep 14 |
| N232412711 |
Emissions Recall - ECM OBD – Catalytic Converter Fault Detection Campaign / Product Emission / Engine Heating and Cooling |
Sep 14 |
| 23-NA-168 |
Velocity IME Upgrade Information Bulletin / Information / General Information / Entertainment / Hybrid/EV Controls / Driver Assistance Systems |
Sep 14 |
| PIT5895B |
Multifunction Inner Tailgate Will Not Open Or Unable To Disable Inner Tailgate Bulletin / Preliminary Information / Bumpers and Fascias |
Sep 14 |
| PIE0761 |
Engineering Information - Grunt, Grinding, and/or Metal on Metal Type Noise Heard During Braking Bulletin / Engineering Information / Disc Brakes / General Information |
Sep 14 |
| 23-NA-034 |
Radio Software Version Y167 – Multiple Updates for IOK Bulletin / Technical / Entertainment / Programming and Setup / Displays and Gauges |
Sep 14 |
| 12-08-51-002P |
Spray-in Bed Liner General Information and Repair Procedures Bulletin / Information / Bolted Exterior Body Panels and Closures / Paint and Coatings |
Sep 14 |
| PIT6058 |
Rattle / Clunk / Tap Noise From Front Of Vehicle Bulletin / Preliminary Information / Instrument Panel and Console Trim / Engine Heating and Cooling |
Sep 14 |
| PIT6057 |
Power Swing Gate will not power open or unlatch and only move 1-2 mm Bulletin / Preliminary Information / Vehicle Access Systems |
Sep 14 |
| 20-NA-142 |
Shudder/Surging While Driving Bulletin / Technical / Automatic Transmission |
Sep 13 |
| 23-NA-166 |
Themes Collection IME Upgrade Information Bulletin / Information / General Information / Entertainment / Displays and Gauges |
Sep 13 |
| N222389310-01 |
Safety Recall - Half-Shaft Disengagement Campaign / Safety / Automatic Transmission |
Sep 13 |
| 21-NA-277 |
No Crank, No Start, Quick Start/Stall, Key Fobs Inoperative, DTCs B3924 00, B3925 00, B3926 00, B3927 00 or P0513 Set Bulletin / Technical / Vehicle DTC Information / Programming and Setup / Remote Functions |
Sep 13 |
| PIT5941A |
Rear Back Glass Will Not Open With Rear Switch Or RKE Bulletin / Preliminary Information / Fixed and Moveable Windows |
Sep 12 |
| PIT6055 |
HUMMER EV Service Driver Assist Message with DMS DTC: U3000 or B0126 Bulletin / Preliminary Information / Front Suspension |
Sep 12 |
| PIT6056 |
Supercruise Inoperative With Current Or History DTC: U1624 Bulletin / Preliminary Information / Cruise Control / Driver Assistance Systems |
Sep 12 |
| 23-NA-160 |
Radio Software Version W38E-170.5.1-M166-SQBR3-187.2 – Multiple Updates for IVD Bulletin / Technical / Entertainment / Programming and Setup / Displays and Gauges / Image Display Cameras |
Sep 12 |
| 23-NA-159 |
DTC P22FB/P22FE CALIBRATION UPDATE - REPROGRAM DEF CONTROL UNIT (DCU) Bulletin / Technical / Vehicle DTC Information / Programming and Setup / Displays and Gauges |
Sep 12 |
| 22-NA-170 |
Information on Possible Crank No Start or Extended Crank with DTC P12A6 or Service Safety Restraints message on DIC, with B0073 Bulletin / Information / General Information / Vehicle DTC Information / Engine Heating and Cooling / Engine Mechanical / Engine Controls and Fuel |
Sep 12 |
| 22-NA-095 |
Front Brake Squeal Noise Heard During Light Brake Pedal Application Bulletin / Technical / Disc Brakes |
Sep 12 |
| N222395370 |
Customer Satisfaction Program - Engine Wire Harness Contact Campaign / Customer Satisfaction / Engine Mechanical |
Sep 11 |
| 23-NA-155 |
Accessory Roof Rack Cross Rail, Luggage Carrier Cross Rail Key Stuck in Lock, Lock Stuck or Inoperable Bulletin / Technical / Luggage Rack and Roof Trim |
Sep 11 |
| 23-NA-156 |
Information on M1L Automatic Transmission Production Running Changes Bulletin / Information / Automatic Transmission |
Sep 08 |
| N232417940 |
Service Update - Vehicles Shipped without Ordered Accessory Wheels and Floor Liners Campaign / Service Update / Wheels and Tires |
Sep 08 |
| 23-NA-102 |
Drivability Concerns, Hesitation, Transmission Shifting Rough/Harsh, Malfunction Indicator Lamp (MIL) Illuminated - Multiple DTCs Set Bulletin / Technical / Vehicle DTC Information / Power Outlets / Electrical Component Locator and Harness Routing Views / Electrical Component and Inline Harness Connector End Views / Wire and Connector Repair |
Sep 08 |
| 17-NA-157 |
Information on Spin-On Oil Filter Replacement for Gas Engines Designed with New Oil Pump Control Systems Bulletin / Information / Engine Mechanical |
Sep 08 |
| 21-NA-220 |
Loss of Power, Malfunction Indicator Lamp (MIL) Illuminated, Gauges Inoperative and/or Multiple Warning Lights/Messages Displayed on Driver Information Center (DIC) - Multiple DTCs Set Bulletin / Technical / Vehicle DTC Information / Displays and Gauges / Data Communications / Power Outlets / Wiring Systems and Power Management / Engine Controls and Fuel / Electrical Component Locator and Harness Routing Views / Electrical Component and Inline Harness Connector End Views / Wire and Connector Repair |
Sep 08 |
| 23-NA-157 |
HPCM2 Software Update for DTC U3636 Symptom 09 Bulletin / Technical / Vehicle DTC Information / Programming and Setup / Displays and Gauges / Hybrid/EV Controls |
Sep 08 |
| PIP5939 |
SES Lamp With DTC P0315 Bulletin / Preliminary Information / Engine Controls and Fuel |
Sep 08 |
| 23-NA-114 |
Starter or Flywheel Knock Noise on Start Up / Starter and Fuse Block Service Precautions Bulletin / Technical / Engine Mechanical / Engine Electrical / Manual Transmission / Wiring Systems and Power Management / Starting, Charging, and Low Voltage Energy Storage |
Sep 07 |
| 19-NA-218 |
Ticking Noise from the Engine Bulletin / Technical / Vehicle DTC Information / Engine Mechanical |
Sep 07 |
| 23-NA-029 |
Transmission Grinds When Put Into Gear, Slipping, No Movement When Shifted Into Drive or Reverse Bulletin / Technical / Automatic Transmission / General Information |
Sep 07 |
| 22-NA-006 |
Service AWD Lamp Illuminated, Setting of DTCs (C1260 thru C1267, C1290 thru C1293, C1295 and C1296) Bulletin / Service Manual Update / Automatic Transmission / Transfer Case |
Sep 07 |
| 23-NA-058 |
Cold Start Rattle Noise from the Engine Compartment, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0299 Set Bulletin / Technical / Vehicle DTC Information |
Sep 07 |
| N222389360 |
Customer Satisfaction Program - Mislabeled Base Front Differential Housing Service Parts Campaign / Customer Satisfaction / Front Drive Axle |
Sep 07 |
| 17-NA-281 |
RDM Axle Ratios for AWD Vehicles for Vibration Diagnostics When Using the Pico Scope Bulletin / Information / Propeller Shaft / Wheel Drive Shafts / Rear Drive Axle |
Sep 06 |
| PIT5869A |
SES MIL / AC Blows Warm Air / Fuse F4DR Open / DTC B1AA3 U3018 U3505 Bulletin / Preliminary Information / Lighting Systems / Wiring Systems and Power Management / Engine Controls and Fuel |
Sep 06 |
| PIT6044C |
Service High Voltage with MIL and/or DTCs Bulletin / Preliminary Information / Starting, Charging, and Low Voltage Energy Storage |
Sep 05 |
| 23-NA-154 |
Warranty Administration - Required Operating Procedures - 8 Points (U.S. Only) Bulletin / Warranty Administration / General Information |
Sep 05 |
| 23-NA-151 |
High Voltage Battery Core Return Shipment Criteria Bulletin / Information / General Information |
Sep 05 |
| 23-NA-147 |
Squeak Noise from Front Seat Bulletin / Technical / General Information / Maintenance and Lubrication / Squeaks and Rattles / Seat Hardware, Trim and Upholstery |
Sep 05 |
| PIC6497A |
Click or Tick Noise When Adjusting HVAC Temperature Bulletin / Preliminary Information / Heating, Ventilation and Air Conditioning |
Sep 05 |
| N222375791-08 |
Customer Satisfaction Program - Park Assist Retrofit Campaign / Customer Satisfaction / Programming and Setup |
Sep 05 |
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
9/25/2023
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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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