1997 GMC Jimmy Owner's Manual - Page 90

Parking Brake To set the parking brake. hold the regular brake pedal down with your right foot. Push down the parking brake pedal with your left foot. I f the ignition is on, the brake system warning light w i l l come on. To release the parking brake hold the regular brake pedal down. NOTICE: Driving with the parking brake on cancause your rear brakes to overheat. You may have to replace them, and you could also damage other parts of your vehicle. If you are towing a trailer and you must park on a hill, see "Towing a Trailer" in the Index. That section shows what to do first to keep the trailer from moving. 2-29