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 ExhaustRear Window Defogger Description and Operation
Rear Window Defogger System ComponentsThe rear window defogger system consists of the following components:HVAC Control ModuleRadio/HVAC ControlsRear Defogger RelayRear Defogger GridDriver Outside Rearview MirrorPassenger Outside Rearview Mirror40A FuseE17DOutside Rearview Mirror Glass - DriverE18Re ...