1993 Chevrolet Lumina Owner's Manual - Page 59

Park P (Park): This locks your front wheels. It's the best positionto use when you start your engine because your vehicle can't move easily. CAUTION A It is dangerous to get out of your vehicle if the shift lever is not fully P in (Park) with the parking brake firmly set. Your vehicle roll. can Don't leave your vehicle when engine isrunning unless you have If you the to. have leftthe engine running,the vehicle can move suddenly. or others You on could be injured.To be sure your vehicle won't move, when you're fairly level ground, always set your parking brake and move the shift lever to P (Park). See the Index under Shifting Into P (Park). If you are parking on a hill, or if you're pulling a trailer, also see Index under Parking on Hills or Towing a the Trailer.