1999 Pontiac Grand Prix Owner's Manual - Page 92
1999 Pontiac Grand Prix Manual
Page 92 highlights
yellowblue Automatic Transaxle Operation PARK (P): This locks the front wheels. It's the best position to use when you start the engine because the vehicle can't move easily. CAUTION: It is dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake firmly set. Your vehicle can roll. Don't leave your vehicle when the engine is running unless you have to. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure your vehicle won't move, even when you're on fairly level ground, always set your parking brake and move the shift lever to PARK (P). See "Shifting Into PARK (P)" in the Index. If you're pulling a trailer, see "Towing a Trailer" in the Index. The automatic transaxle may have a shift lever on the steering column or on the console between the seats. Maximum engine speed is limited on automatic transaxle vehicles when you're in PARK (P) or NEUTRAL (N), to protect driveline components from improper operation. There are several different positions for the shift lever. 2-32