Malfunction Indicator Lamp (MIL) Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set – 2000-2022 GM Passenger Cars and Trucks

Chevrolet Buick GMC Cadillac

NHTSA ID Number: 10219266 Manufacturer Communication Number: 20-NA-065 Summary This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.   Condition Some customers may comment that the MIL is illuminated. Technicians may find one or … Read more

AC Blows Warm or Poor Performance – 2020-2021 GM

General Motors

NHTSA ID Number: 10216361 Manufacturer Communication Number: PIT5099F Summary This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.   Condition / Concern Customer may comment that … Read more

Information on New Torque Specification and Installation Procedure for ACDelco Spin-On Oil Filters – GM Passenger Cars and Trucks

General Motors

NHTSA ID Number: 10222796 Manufacturer Communication Number: 22-NA-009 Summary This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.   Condition Some customers or dealers may comment on an oil leak coming from underneath the front of the vehicle after a prior oil service was performed. This leak can … Read more

Engine Backfire and Related Driveability Issues – 1999-2002 Chevrolet & GMC B7 School Bus Chassis, C6/C7 Conventional Cab Medium Duty

QUANTUM Technologies GM

NHTSA ID Number: 10195303 Manufacturer Communication Number: TSB-013 Summary Engine Backfire and Related Driveability Issues   This bulletin is being issued to assist technicians in efficiently diagnosing and correcting backfire and other related driveability concerns. When a vehicle is identified with a backfire it is recommended that the checks listed below be followed in the indicated order. … Read more

OnStar Voice Fallback Number Update – 2000-2015 Buick, Cadillac, Chevrolet, GMC, Pontiac

2015 GMC Terrain

NHTSA ID Number: 10201115 Manufacturer Communication Number: 15-NA-079   Summary OnStar Voice Fallback Number Update     1735 Affected Products Vehicles MAKE MODEL YEAR BUICK ALLURE 2006-2009 BUICK CENTURY 2000-2005 BUICK ENCLAVE 2008-2015 BUICK ENCORE 2013-2015 BUICK LACROSSE 2005-2015 BUICK LESABRE 2000-2006, 2013 BUICK LUCERNE 2006-2012 BUICK PARK AVENUE 2000-2005 BUICK RAINIER 2003-2007 BUICK REGAL 2000-2005, 2008-2015 … Read more