Some owners of 2010-2011 Buick LaCrosse vehicles equipped with a 3.6L V6 engine built prior to VIN BF358708 may comment that the MIL is illuminated within the first 60 seconds of operation after a cold start. A revised calibration has been developed to address this condition. No driveability concern is present, and the technician may find DTC P0300 through P0306 (random misfire counts).
This bulletin applies to 2010-2011 Buick LaCrosse models equipped with the 3.6L V6 engine, built prior to VIN breakpoint BF358708. Some customers may comment that the MIL is illuminated within the first 60 seconds of operation after a cold start.
This bulletin applies to 2013-2014 Buick Encore vehicles, as well as a host of 2010-1014 GM models. A customer may note that the vehicle’s brake lights remain on when the vehicle is off and parked, and/or the battery goes dead.
Owners of 2006-2011 Buick Lucerne vehicles may complain that the battery goes dead when the vehicle is parked. Battery electrical drain/parasitic load testing may reveal an abnormally high current draw that is traced to the F12 BCM LOGIC fuse (2006-2007 models), BCN fuse 19 (2008 models) and BCM fuse 32 (2009-2011) located in the rear fuse block. The problem may seem intermittent.
This bulletin applies to a number of GM vehicles including 2011-2013 Buick Regal and LaCrosse, 2010-2013 Cadillac SRX, 2010-2013 Chevy Camaro and Equinox, 2011-2013 Chevy Cruze and 2010-2013 GMC Terrain models.
Owners of various GM vehicles equipped with HFV6 engines (3.0L and 3.6L) may complain about an SES light. This may be accompanied by misfire codes or possible oil or coolant leaks.
While performing diagnostics, a technician may notice DTC B2455 stored as a history code in the vehicle communication interface module (VCIM) when there is no issue with the microphone.
This TSB applies to a range of GM vehicles where the PPS (passenger presence system) may command the seat belt reminder chime and passenger airbag indicator on, when electronic devices or conductive objects are placed on the front passenger seat. DTC 5045 or B0074 OF may be set in the PPS module.
This TSB applies to 2007 and prior GM passenger cars and light duty trucks, 2003-2007 Hummer H2, 2006-2007 Hummer H3, and 2005-2007 Saab 9-7X, equipped with 4L60-E, 4L65-E or 4L70-E automatic transmissions.
Owners of a 2010 Buick LaCrosse may complain that the right side low beam headlamp is inoperative.
Sign up for a FREE subscription to Auto Service Professional magazineSubscribe