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Recent Bulletins
| 20-NA-136 |
Diagnostic Tips for DTCs Set at a Low Mileage for 9T65 Transmissions Bulletin / Information / Automatic Transmission / Vehicle DTC Information |
Oct 01 |
| PIT5809B |
Clunk Pop Rattle Knock Click Type Noise Heard or Felt In The Steering Bulletin / Preliminary Information / Steering Wheel and Column |
Oct 01 |
| PIP5823A |
Intermittent Extended Crank No Start Bulletin / Preliminary Information / Engine Controls and Fuel |
Oct 01 |
| PIP5822A |
Intermittent Extended Crank or Intermittent Crank No Start and DTC P0341 Set Bulletin / Preliminary Information / Engine Controls and Fuel |
Sep 30 |
| PIE0627A |
Engineering Information - One or More Camera Views Showing Intermittent Behavior and/or Totally Inoperable Bulletin / Engineering Information / General Information |
Sep 29 |
| 21-NA-125 |
Service Emission System and/or Service Engine Soon Lamp Illuminated On Driver Information Center (DIC), DTC P208B Set Bulletin / Technical / General Information / Engine Controls and Fuel |
Sep 29 |
| PIP5769B |
T96 TCM Restriction Has Ended Bulletin / Preliminary Information / Automatic Transmission |
Sep 29 |
| 19-NA-235 |
Rattle or Ticking Noise from B-Pillar Area Bulletin / Technical / Squeaks and Rattles / Frame and Underbody |
Sep 29 |
| 21-NA-169 |
Diagnostic Tip for DTCs Set at a Low Mileage for 9T45/50/60 Automatic Transmissions Bulletin / Technical / Automatic Transmission / Vehicle DTC Information |
Sep 28 |
| PIP5768B |
E66 ECM PQC Part Restriction has ended Bulletin / Preliminary Information / Engine Controls and Fuel |
Sep 28 |
| N212332040 |
Safety Recall - Stall While Driving Campaign / Safety / Engine Controls and Fuel |
Sep 28 |
| 21-K-009 |
Passenger Side Insufficient Heating Performance Bulletin / Technical / Engine Heating and Cooling |
Sep 27 |
| 17-NA-271 |
Clicking Noise from Front Wheels While Turning at Slow Speeds Bulletin / Technical / Tires and Wheels |
Sep 27 |
| N212348030 |
Emissions Recall - Engine Control Module Cannot Detect Catalyst Inefficiency Campaign / FMVSS Noncompliance / Engine Controls and Fuel |
Sep 27 |
| PIP5812B |
Diagnostic Tip: Potential For Oil/Moisture Condensate Freezing Up in Turbocharger Wastegate Regulator Solenoid Valve (TCV) Bulletin / Preliminary Information / Engine Controls and Fuel |
Sep 27 |
| 21-NA-199 |
Information on Installation of a New Thermal Bypass Valve (TBV) Bulletin / Information / Automatic Transmission |
Sep 27 |
| PIP5816A |
P0300 Setting After Bulletin 21-NA-154 Was Performed Bulletin / Preliminary Information / Engine Controls and Fuel |
Sep 27 |
| N212341880 |
Customer Satisfaction Program - Damaged Power Steering Gears Installed Campaign / Customer Satisfaction / Power Steering |
Sep 27 |
| 07-07-30-010E |
Procedure to Take Snapshot Data with a Tech 2 and Upload Data to a Computer Using TIS Software Bulletin / Information / Automatic Transmission / Vehicle DTC Information / Computer/Integrating Systems / Wiring Systems / Programming and Setup / Wiring Systems and Power Management / Automatic Transaxle |
Sep 24 |
| 21-NA-207 |
Shudder 15mph-13mph When Coasting to a Stop Bulletin / Technical / Programming and Setup / Engine Mechanical / Engine Controls and Fuel |
Sep 24 |
| 21-NA-029 |
Reduced Power Message Displayed on the Drivers Information Center (DIC), Malfunction Indicator Lamp (MIL) Illuminated - DTC P0521, P06DA, P05DB, P06DC, P06DD, and/or P1381 Bulletin / Technical / Vehicle DTC Information / Programming and Setup / Engine Heating and Cooling |
Sep 24 |
| 21-NA-215 |
Pop Noise Heard on Heavy Acceleration Only - Multiple DTC’s Set Bulletin / Technical / Vehicle DTC Information / Wiring Systems and Power Management / Electrical Component Locator and Harness Routing Views |
Sep 24 |
| PIE0628A |
Engineering Information - Malfunction Indicator Lamp Illuminated on Driver Information Center (DIC), DTCs P3055, P3056 Set Bulletin / Engineering Information / General Information / Vehicle DTC Information / Displays and Gauges / Engine Controls and Fuel |
Sep 24 |
| PIE0647A |
Engineering Information - 120-Volt Accessory Power Receptacle Not Functioning Bulletin / Engineering Information / General Information / Power Outlets |
Sep 24 |
| 21-NA-135 |
Information on Obtaining Techline Calibrations for Law Enforcement and Government Vehicles to Disable or Enable Content Bulletin / Information / General Information |
Sep 24 |
| 15-NA-010 |
Information for New Vehicles with Less than 1,000 Miles that May Not Pass California Smog Inspection or Smog Inspection in Other States Bulletin / Information / Exhaust / General Information / Vehicle DTC Information / Programming and Setup / Introduction / Technical Data / Engine Controls and Fuel |
Sep 23 |
| 19-NA-013 |
Ticking or Popping Noise at Roof Rail Assist Handle(s) Bulletin / Technical / Squeaks and Rattles / Frame and Underbody |
Sep 23 |
| 21-NA-013 |
Rattle or Ticking Noise Heard Coming from B-Pillar Area Bulletin / Technical / Squeaks and Rattles |
Sep 23 |
| 19-NA-111 |
Ticking Noise from Upper B-Pillar Area Bulletin / Technical / General Information / Squeaks and Rattles / Collision Repair / Bolted Exterior Body Panels and Closures |
Sep 23 |
| PIT5849A |
Tail Lights Remain On After Passive Locking and/or Dead Battery Bulletin / Preliminary Information / Lighting Systems / 12 V Starting and Charging |
Sep 23 |
| PIT5855 |
Heated and Ventilated Seats Inoperative Bulletin / Preliminary Information / Data Communications / Seat Heating & Cooling |
Sep 23 |
| PIE0616D |
Engineering Information - Service Park Assist Lamp Illuminated on the Driver Information Center (DIC), DTC U0159 Set in One or More Modules Bulletin / Engineering Information / Vehicle DTC Information / Displays and Gauges |
Sep 22 |
| PIE0649A |
Engineering Information - Paint Chipping and/or Peeling on Front Fascia at the Interface of Front Fender and Fascia Near Headlamp Bulletin / Engineering Information / Bumpers and Fascias / Paint and Coatings |
Sep 22 |
| PIP5824 |
2021 HFV6 Engine Misfire On AFM Cylinders 2 or 5 Bulletin / Preliminary Information / Engine Controls and Fuel |
Sep 22 |
| 21-NA-213 |
During Vehicle Turns, Airbag, Theft, and Tire Lamps Illuminate On/Off, Malfunction Indicator Lamp (MIL) Illuminated with DTCs U0078, U0140, U0184, U0151, and/or U0073 Set Bulletin / Technical / Vehicle DTC Information / Displays and Gauges / Wiring Systems and Power Management / Wire and Connector Repair |
Sep 21 |
| 99-04-20-002M |
Information on Driveline Clunk Noise Bulletin / Information / Rear Drive Axle / Automatic Transmission / General Information |
Sep 21 |
| 07-00-89-037R |
Warranty Administration - GM Courtesy Transportation and Roadside Assistance Programs Bulletin / Warranty Administration / General Information |
Sep 21 |
| 21-NA-068 |
Warranty Administration - Transmitter Key Fob Warranty Replacement Requirements (U.S. Only) Bulletin / Warranty Administration / General Information / Remote Functions |
Sep 21 |
| PIT5854 |
Service Leveling System/Speed Limited Message Due to Aftermarket Modifications Bulletin / Preliminary Information / Suspension Controls |
Sep 21 |
| PIT5790C |
Radio Resets Or Reboots And Then Displays myBrand Splash Animation Bulletin / Preliminary Information / Entertainment |
Sep 21 |
| 21-NA-155 |
Information on Check Trailer Wiring Message and/or Service Trailer Brake Displayed on Driver Information Center (DIC) - DTC C1114 Set Bulletin / Information / Vehicle DTC Information / Power Outlets / Wiring Systems and Power Management / Electrical Component and Inline Harness Connector End Views / Wire and Connector Repair |
Sep 21 |
| PIE0657 |
Engineering Information - Check Engine Lamp Illuminated On Driver Information Center (DIC), DTC P0494 Set Bulletin / Engineering Information / General Information / Vehicle DTC Information / Engine Heating and Cooling |
Sep 21 |
| N212344080 |
Customer Satisfaction Program - Steering Gear Replacement – One Involved VIN in the USA Campaign / Customer Satisfaction / Steering Linkage |
Sep 21 |
| N212328790-03 |
Safety Recall - Front Passenger Airbag Takata Inflator - Priority Group 9 Campaign / Safety / SIR |
Sep 20 |
| PIT5291F |
Wind Whistle Noise at Highway Speeds from Left or Right Rear Quarter Glass Area Bulletin / Preliminary Information / Air/Wind Noise |
Sep 20 |
| N212328780-03 |
Safety Recall - Front Passenger Airbag Takata Inflator - Priority Group 8 Campaign / Safety / SIR |
Sep 20 |
| 21-NA-208 |
Changes to the Auto HVAC Control Knob Digital Temperature Display Feature for Certain 2021 Silverado 1500, Sierra 1500 Models Equipped with RPO 00D Bulletin / Technical / Heating, Ventilation and Air Conditioning / HVAC Systems - Automatic / Entertainment / Programming and Setup |
Sep 20 |
| PIT4916K |
Normal Characteristic - Wind Buffeting Noise With a Rear Window Down Bulletin / Preliminary Information / Fixed and Moveable Windows |
Sep 20 |
| PIE0640B |
Engineering Information - Vehicle Exhibits a Slow Crank, No Crank and/or No Start Condition When Starting Vehicle Using Start Button on Dash Bulletin / Engineering Information / General Information / 12 V Starting and Charging |
Sep 20 |
| PIT5853 |
Rattle Noise from Drivers Side Dash Area Bulletin / Preliminary Information / General Information / Instrument Panel and Console Trim |
Sep 20 |
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
9/28/2021
9848 documents were updated
5617 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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