1997 GMC Suburban Owner's Manual - Page 100

Shifting Into PARK (P) 7 I Steering Column Shift Lever 1. Hold the brake pedal down with your right foot and set the parking brake. 2. Move the shift lever into PARK (P) position like this: It can be dangerous to get out of your vehicle if the shift lever not fully in is PARK (P) with the set. parking brake firmly Your vehicle can roll. If you have left the engine running, the vehicle can move suddenly.You or others could be vehicle won't move, even injured. To be sure your when you're on fairly level ground, use the steps that follow. If you have four-wheel drive and is your transfer case in NEUTRAL (N), your vehicle will be free to roll, even if your shift lever is in PARK (P). So, be sure the transfer case in is a drive gear not in NEUTRAL (N). If you're pulling a trailer, see "Towing a Trailer" in the Index. I- Pull the lever toward you. 2-26