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Recent Bulletins

20-NA-218 Possible Crank No Start or Extended Crank with DTC P12A6
Bulletin / Technical / Vehicle DTC Information / Programming and Setup / Engine Controls and Fuel
May 07
21-NA-053 Radio Software Version V155 Update
Bulletin / Technical / Entertainment / Programming and Setup
May 07
PIT5214E GM TAC Support of Vehicle Vibration Complaints - U.S. and Canada Dealers Only
Bulletin / Preliminary Information / Suspension General Diagnosis / Propeller Shaft / Vibration Diagnosis and Correction
May 07
PIC6435A Service Adaptive Headlamp Message, Lin Bus DTC U1523 Setting After Right Headlamp Replaced
Bulletin / Preliminary Information / Lighting Systems
May 07
PIE0595A Engineering Information - Request for Pictures On Front and/or Rear Bumper Fascias with Customer Paint Concerns
Bulletin / Engineering Information / General Information / Bumpers and Fascias / Paint and Coatings
May 07
12-08-51-002L Spray-in Bed Liner General Information and Repair Procedures
Bulletin / Information / Bolted Exterior Body Panels and Closures / Paint and Coatings
May 07
PIT5839A Radio System Settings Lost or Returning to Default Values
Bulletin / Preliminary Information / Entertainment
May 07
21-NA-111 Check Engine Light Illuminated, No Start/No Propulsion, DTC P0A0C
Bulletin / Technical / Vehicle DTC Information / Hybrid/EV Energy Storage / Programming and Setup / Displays and Gauges
May 06
20-NA-159 Warranty Administration - General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only)
Bulletin / Warranty Administration / Tires and Wheels / General Information
May 06
13-03-10-001H Information on Summer Tire Performance and Tire Cold Weather Cracking
Bulletin / Information / Tires and Wheels
May 06
N202324050 Service Update - Differential Pressure Reading at DPF High Results in Reduced Power
Campaign / Service Update / Programming and Setup
May 06
21-NA-110 Information on GM Accessories - Instructions on Claim Submission on Dealer-Replaced Tonneau Covers During Warranty Period
Bulletin / Information / Exterior Trim / Bolted Exterior Body Panels and Closures
May 06
18-NA-361 Diagnostic Tip for Fuel System Contamination, Malfunction Indicator Lamp (MIL) Illuminated - DTC P026D, P2A00, P0171, P0172 and/or P0300 Set
Bulletin / Technical / Vehicle DTC Information / Displays and Gauges / Engine Mechanical / Engine Controls and Fuel
May 06
PIE0634 Engineering Information - (Pictures Only) - Front Center Floor Power Console Function and/or Appearance Issues
Bulletin / Engineering Information / General Information / Instrument Panel and Console Trim
May 06
PIE0598A Engineering Information - Request for Pictures On Refrigerant Leak Issues at A/C Evaporator Thermal Expansion Valve, A/C Evaporator Pipes and/or A/C Evaporator for Vehicles with Low Mileage
Bulletin / Engineering Information / Heating, Ventilation and Air Conditioning / General Information
May 06
PIE0622A Engineering Information - Surround Vision Camera Inoperable and/or Black Screen with Red Slash Shown On Radio Display
Bulletin / Engineering Information / General Information / Displays and Gauges / Image Display Cameras
May 06
A202317281-02 Emission Recall - Incorrect Catalytic Converter Assembled
Campaign / Product Emission / Exhaust
May 06
20-NA-042 Fuel Gauge May Intermittently Display Erratic and/or Empty Readings, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0462 Set
Bulletin / Technical / Vehicle DTC Information / Displays and Gauges
May 05
17-NA-087 Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining
Bulletin / Information / Wheel Alignment / Tires and Wheels
May 05
N202307080-01 Service Update Bulletin - Auto Stop with Low Battery State of Charge
Campaign / Service Update / Programming and Setup / Wiring Systems and Power Management
May 05
19-NA-129 Squeak and/or Clunking Noise from Rear of Vehicle
Bulletin / Technical / Rear Suspension
May 05
18-NA-201 Oil Leak from Oil Pan Area
Bulletin / Technical / Engine Mechanical
May 05
21-NA-040 Squeak, Rattle or Creak Noise Originating from Second Row Seat Area
Bulletin / Technical / Squeaks and Rattles / Seat Hardware, Trim and Upholstery
May 05
21-NA-095 Malfunction Indicator Lamp (MIL) Illuminated - DTC P1488 or P24DA Set
Bulletin / Technical / Exhaust / Vehicle DTC Information
May 05
PIE0635 Engineering Information - Squeak and/or Squeal Type Noise Heard During Brake Apply
Bulletin / Engineering Information / Antilock Brake System / General Information
May 05
PIP5804 Diagnostic Tip: Possible Engine Overheating Or Running Hot With Engine Over Temperature Message Displayed On Driver Information Center
Bulletin / Preliminary Information / Engine Heating and Cooling
May 05
PIE0602B Engineering Information - Service Engine Soon Lamp Illuminated On Driver Information Center (DIC), DTC P208B Set
Bulletin / Engineering Information / Vehicle DTC Information / Displays and Gauges
May 05
PIE0613A Engineering Information - Check Engine Lamp Illuminated on Driver Information Center (DIC) and/or Poor Fuel Fill, DTC P0451 Set
Bulletin / Engineering Information / Vehicle DTC Information / Displays and Gauges / Engine Controls and Fuel
May 04
PIE0632 Engineering Information - Owner Receipt of PAI SAC003 and/or Dealer Informed of Excessive Parasitic Drains on an In-Inventory Vehicle
Bulletin / Engineering Information / General Information / 12 V Starting and Charging / Engine Mechanical
May 04
N202325160-03 Safety Recall - Battery Cable Short Circuit
Campaign / Safety / Wiring Systems and Power Management
May 04
N212335340 Customer Satisfaction Program - ECM Calibration Causing Battery Drain
Campaign / Customer Satisfaction / Programming and Setup
May 04
21-NA-108 Information on Engine Overheating, Cooling System Contaminated with Engine Oil
Bulletin / Information / Engine Mechanical
May 04
21-NA-109 Diagnostic Information on Engine Vibration
Bulletin / Information / Engine Mechanical
May 03
PIC6384E Body Control Module Parts Restriction
Bulletin / Preliminary Information / Suspension Controls / Vehicle Access Systems
May 03
20-NA-170 Clicking Type Noise Heard Near Brake Pedal and/or I-Booster Under the Hood
Bulletin / Technical / Hydraulic Brakes / Programming and Setup
May 03
21-NA-077 Information on Aero Shutter Related Diagnostic Codes
Bulletin / Information / Bumpers and Fascias
May 03
PIT5840 Wind Noise From Either Front door(s) While Driving
Bulletin / Preliminary Information / Fixed and Moveable Windows
May 03
21-NA-091 Information on Normal Rearview Camera Display Operation - Flashing Diamond - Spot - or UFO like image on Rear View Camera Display
Bulletin / Information / Entertainment / Displays and Gauges / Image Display Cameras
May 03
19-NA-044 Information on Black Smoke, Rough Idle and Minimal Misfires on Cold Start
Bulletin / Information / Engine Controls / Engine Exhaust / Exhaust / Engine Controls and Fuel
May 03
19-NA-153 Malfunction Indicator Lamp (MIL) Illuminated - DTC P0741 Set
Bulletin / Technical / Automatic Transmission / Clutch
May 03
19-NA-167 Water Leak into Interior and/or Various Electrical Concerns, Liftgate Actuator Noisy or Inoperative
Bulletin / Technical / Waterleaks / Vehicle Access Systems
May 03
21-NA-088 Check Engine Light Displayed on Driver Information Center (DIC), Engine Cooling Fan Windmilling, DTC P0494 Set
Bulletin / Technical / Vehicle DTC Information / Programming and Setup / Displays and Gauges / Engine Heating and Cooling / Engine Controls and Fuel
May 03
21-NA-079 Pop Noise Heard During Seat Travel and/or Inadequate Seat Rearward Travel
Bulletin / Technical / General Information / Squeaks and Rattles / Seat Hardware, Trim and Upholstery
May 03
21-NA-096 Cooling Fans Continuously Run, Malfunction Indicator Lamp (MIL) Illuminated - DTC P2B60, P1098, P26BB, P149D, P0421, and/or P0606 Set
Bulletin / Technical / Vehicle DTC Information / Programming and Setup
May 03
16-NA-338 Warranty Administration - Engine and Transmission Assembly Replacement and PQC Process (Canada Only)
Bulletin / Warranty Administration / Engine Mechanical / Manual Transmission / Automatic Transmission / Transfer Case
Apr 30
PIC6391F Electronic Brake Booster Control Module Part Restriction Has Ended
Bulletin / Preliminary Information / Antilock Brake System
Apr 30
21-NA-106 Information on Transmission Related DTCs Do Not Appear to Clear or Reset After Completing a Transmission Repair
Bulletin / Information / Automatic Transmission / Vehicle DTC Information
Apr 30
21-NA-105 Engine Control Module Calibration for DTC P0171 and P0174 Set
Bulletin / Technical / Vehicle DTC Information / Programming and Setup / Engine Controls and Fuel
Apr 29
21-NA-104 Engine Control Module Calibration for DTC P050D Set
Bulletin / Technical / Vehicle DTC Information / Programming and Setup / Engine Controls and Fuel
Apr 29
PIT5821 Passenger I/P Airbag Assembly Parts Restriction
Bulletin / Preliminary Information / SIR
Apr 29

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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.

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