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 ExhaustChannel Plate to Valve Body Spacer Plate Assembly - Channel Plate Side Automatic Transmission Unit
Channel Plate to Valve Body Spacer PlateAssembly-–-Channel PlateSide(2)Line(9)Regulated Apply(10)Exhaust Backfill(11)Actuator Feed Limit(12)PCS Line(13)PCS R1/456 Clutch(14)Shift Solenoid(15)R1/456 Clutch Feed(16)R1/456 Clutch Feedback(18)PCS 35 Reverse Clutch(19)Reverse(20)35 Reverse Clutch Feed( ...