This bulletin applies to 2009-2010 Chevy HHR vehicles. According to GM, “in rare instances” a technician may comment that they hear a short, sharp rattle noise from the front of the engine at start-up. Codes P0011, P0014, P0016 or P0017 may also be set.
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).
This bulletin applies to 2013 Chevy Equinox and GMC Terrain vehicles built before 9-6-2012. The customer may experience an intermittent theft deterrent alarm, horn or hood ajar message.
Certain 2004-2014 GM vehicles may be equipped with a new style of catalytic converter, technically known as the close-coupled catalytic converter, which provides quick warmup, resulting in lower tail pipe emissions earlier in the operating cycle.
This bulletin applies to a number of GM vehicles equipped with a 6T30/40/45 automatic transmission, including 2010-2012 Buick LaCrosse, 2011-2012 Buick Regal, 2012 Buick Verano, 2011-2012 Chevy Cruze, 2008-2012 Chevy Malibu, 2010-2012 Chevy Equinox, 2010-2012 GMC Terrain, 2008-2010 Pontiac G8, 2008-2010 Saturn Aura and 2012 Chevy Sonic.
Some owners of 2013 Chevy Caprice vehicles may comment about roughness or vibration felt at stops and a clunk from the driveline on acceleration from stops. This may be caused by a broken motor mount.
This bulletin applies to 2012-2013 Chevy Tahoe Police vehicles equipped with StabiliTrak. The customer may comment that they are unable to disable the StabiliTrak by pressing and holding the TCS/StabiliTrak button for 5 seconds as the owner’s manual indicates.
Some owners of select GM vehicles may comment on a low brake pedal during braking. See the application list at the end of this bulletin.
This bulletin applies to 2007-2013 Chevrolet Silverado vehicles equipped with the Allison LCT1000 5-speed or 6-speed transmission, where the vehicle may not move in forward or reverse.
Owners of 2014 Chevy Equinox vehicles may experience a noise or a fluid leak from the power steering pump, gear or high pressure side power steering hose during extreme low outdoor temperature operation.