1998 Chevrolet Astro Owner's Manual - Page 377

Starter Switch Check Brake-Transmission Shift Interlock(BTSI) Check IA CAUTION: I A CAUTION: When you are doing this check, the vehicle could move suddenly.If it does, youor others could be injured. Follow thesteps below. 1. Before you start, be sure you have enough When you are doing this check, the vehicle could move suddenly.If it does, youor others could be injured. Follow thesteps below. 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 Indexif necessary) and the regular brake. room around the vehicle. It should be parked on a level surface. 2. Firmly apply the parking brake (see "Parking Brake" in the Index if necessary). NOTE: Be ready to apply the regular brake immediately if the vehicle begins to move. 3. With the engine off, turn the key to the RUN position, but don't startthe engine. Without applying the regular brake, try to move the shift lever out of PARK (P) with NOTE: Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts. 3. Try to start the engine in each gear. The starter should work only in PARK (P) orNEUTRAL (N). If the starter works in any other position, your vehicle needs service. normal effort. If the shift lever moves outof PARK (P), your vehicle's BTSI needs service. 7-43