1998 Pontiac Firebird Owner's Manual - Page 359

Starter Switch Check Brake-Transmission Shift Interlock (BTSI) Check (Automatic Transmission) r A CAUTION: When you are doing this check, the vehicle could move suddenly.If it does, youor others couldbe injured. Follow the steps below. - When you are doing this check, the vehicle could move suddenly.If it does,you or others couldbe injured. Follow the steps below. 1. Before you start,be sure you have enough room around the vehicle.It should be parked on a level surface. 1. Before you start, be sure you have enough room around the vehicle. 2. Firmly apply both the parking brake (see "Parking Brake,' in the Index if necessary) andthe regular brake. NOTE: Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts. 1 2. Firmly apply the parking brake (see "Parking Brake" in the Index if necessary). 3. On automatic transmission vehicles,try to start the engine in each gear. The starter shouldwork only in PARK (P) or NEUTRAL (N). If the starter works in any other position, your vehicle needs service. On manual transmission vehicles, put the shift lever in NEUTRAL (N), push the clutch down halfway The and try to start the engine. starter shouldwork only when the clutch pushed down all the way to is the floor. If the starter works when the clutch isn't your vehicle needs service. pushed all the way down, NOTE: Be ready to apply the regular brake immediately ifthe vehicle begins to move. 3. With the engine off, turn the key tothe RUN position, but don'tstart the engine. Without applying try of the regular brake, to movethe shift lever out PARK (P) with normal effort. the shift lever If moves out of PARK ( ) your vehicle's BTSI P, needs service.