It is better not to park with the engine running.
If the vehicle is left with the engine running, follow the proper steps to be sure the vehicle will not move. See Shifting Into Park and Engine Exhaust.
If parking on a hill and pulling a trailer, see Driving Characteristics and Towing Tips.
Engine Exhaust
Rear-Facing Infant Restraint
A rear-facing child restraint provides restraint with the seating surface against the back of the infant.