Owners of 2017-2019 GM vehicles, such as GMC Canyon and Acadia vehicles equipped with a 3.6L engine, may complain about a rattle, tick or knock type noise.
Owners of 2010-2013 Chevy Camaros and/or technicians may notice brake fluid seeping from the master cylinder reservoir cap.
This bulletin applies to 2016-2019 Chevy Camaro vehicles equipped with a 2.0L or 2.5L engine. An engine oil leak may be found from the side of the engine block, near the starter. The condition may be caused by porosity in the cast engine block at a bed plate bolt hole location.
This bulletin applies to 2014-current Chevy Camaro vehicles equipped with a 6.2L supercharged engine. Customers may experience a rattling or knocking noise at mid-to-high mph, and at idle. A screeching noise may also be heard at mid-to-high engine speed, usually when cold.
Several GM vehicle models may feature two distinctively different-looking per-cylinder valve-cover-mounted ignition coils. This is due to a supplier difference and, according to GM, does not affect performance or serviceability.
This bulletin applies to 2013 – 2019 Chevy Malibu vehicles equipped with a 2.5L or 2.0L engine. The same engines are available in a number of GM vehicles including Buick Envision and Regal, Cadillac CTS, ATS and CT6, Chevy Camaro, Equinox, Impala and Traverse and GMC Acadia, Canyon and Terrain.
Owners of 2010-2014 Chevy Camaro vehicles may comment about an intermittent pop or multiple popping noises from the rear of the vehicle shortly after a cold start or EVAP purge event.
This bulletin applies to 2012 Chevy Camaro models. The technician may find DTC P062F set in the ECM. This DTC may either be active or in history.
This bulletin applies to all 2011-2012 GM passenger cars and light-duty trucks. In the event that an OnStar module had previously acquired a GPS signal with calibrated dead reckoning and is transported or towed at least 59 miles with the ignition off, the module may not re-acquire a current GPS location.
Owners of 2010-2014 Chevy Camaros may comment about a popping noise (intermittent or multiple) from the rear of the vehicle after a cold start (this may also occur during an EVAP purge event).
Sign up for a FREE subscription to Auto Service Professional magazineSubscribe