It is better not to park with the vehicle running. If the vehicle is left while running, follow the proper steps to be sure the vehicle will not move and there is adequate ventilation.
See Shifting Into Park and Engine Exhaust.
If the vehicle is left parked while running and the Remote Keyless Entry (RKE) transmitter is outside the vehicle, the vehicle will turn off after one hour. If the vehicle is left parked while running and the RKE transmitter is inside, the vehicle will turn off after two hours.
The timer will reset if the vehicle is taken out of P (Park) while it is running.
Shifting out of Park
Engine Exhaust#PIC5611B: Diagnostic Tip - Rear Camera Guideline Selection Is Not Available on Some Radio RPOs - (Nov 15, 2013) Entertainment Audio
Subject:Diagnostic Tip - Rear Camera Guideline Selection Is Not Available on Some Radio RPOsModels: 2012-2013 Buick Lacrosse, Regal2012-2014 Buick Verano2013-2014 Buick Encore2012-2014 Chevrolet Camaro, Cruze, Equinox, Malibu 2012-2014 GMC TerrainThis PI was superseded to update model list. Please ...