1997 GMC Savana Van Owner's Manual - Page 85

Locking Rear Axle If you have this feature, your locking rear axle can give you additional traction on snow, mud, ice, sand or gravel. It works like a standard axle most of the time, but when one of the rear wheels has no traction and the other does, the locking feature will allow the wheel with traction to move the vehicle. Parking Brake To set the parking brake, hold the regular brake pedal down with your right foot. Pushdown the parking brake pedal with your left foot. If the ignition is on,the brake system warning light will come on. To release the parking brake, hold regular brake the pedal down. Pull the handle, located just above the parking brake pedal, marked BRAKE RELEASE to release the parking brake. 2-23