Owners of a 2012-2014 Chevy Cruze equipped with a 1.4L engine and 6T40 automatic transmission and built before Aug. 1, 2013, may complain about a bump feeling or surge or an engine vibration while stopped at idle with the transmission in drive and their foot on the brake pedal.
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.
This bulletin applies to 2014 Chevy Cruze vehicles. A customer may note a fluttering or thumping noise from the side or underneath the vehicle at speeds of 45 mph and above.
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 select GM vehicles may comment on a low brake pedal during braking. See the application list at the end of this bulletin.
Owners of 2011-2014 Chevy Cruze vehicles may complain about a loud engine rattle or knock noise, or that the accessory drive belt and the crankshaft pulley has come off. An inspection may reveal a loose or broken crank pulley bolt and/or flywheel bolts.