This bulletin applies to 2012-2013 Chevy Equinox and Impala vehicles as well as GMC Terrain models, equipped with a V6 engine only. Some customers may comment on an erratic or insufficient cooling when the A/C compressor is turned on. The compressor may not have been torqued properly at the time of assembly, causing a load on the compressor shaft.
This bulletin applies to GM vehicles equipped with HFV6 engines (3.0L and 3.6L LF1, LFW, LLT and LFX). Affected vehicles include 2010-2014 Buick Enclave and LaCrosse, Cadillac ATS, CTS, SRX and XTS, Chevy Camaro, Caprice, Equinox, Impala and Traverse and GMC Acadia and Terrain.
This bulletin applies to a host of 2010-2014 GM vehicles (Chevy, Buick, Cadillac, GMC). A customer may comment that the vehicle brake lights remain on with the vehicle off and the battery going dead while parked.
This bulletin applies to 2009-2013 Chevy Avalanche, Silverado, Suburban and Tahoe and GMC Sierra and Yukon models. DTC B0081 can be set in the SDM (sensing diagnostic module) and PPS (passenger presence system).
Some owners of 2012 GMC Acadia AWD trucks may comment that the front and/or rear heated seats are inoperative and/or the driver’s power seat only moves in short bursts each time the switch is operated.
Some customers may comment on a fluid leak under the front of the GM vehicle. The technician may find fluid leaking from the power steering system.
This bulletin applies to 2010-2011 Chevy Equinox and GMC Terrain vehicles, where dash messages “Intermittent Service Stability, Service Traction and Service All Wheel Drive” messages are found. Stored DTCs can include C0186, C0196, C0710, U0125, U0126, U1826 and U1827.
Customers may complain of a SES light, misfire, DTC P0300, and/or a chirp, squeak, squeal or tick noise -- which may mean a potential valvetrain concern.
This bulletin addresses concerns for rough running, surging and misfires on 2004-2005 GMC Silverado, Sierra, Kodiak and Topkick vehicles equipped with a 6.6L engine.
This bulletin applies to 2010 – 2014 GM vehicles equipped with the 6.6L Duramax diesel engine, including Chevy Express and Silverado and GMC Savana and Sierra models. A technician may encounter a hard start, no start, rough running, low fuel pressure and/or DTC P0087, P0088, P0191 and P128E.