1996 Chevrolet Blazer Owner's Manual - Page 361

Starter Switch Check Brake-Transmission Shift Interlock (BTSI) Check (Automatic Transmission) When you are doing this check, the vehicle could move suddenly. If it does, you or others could be injured. Follow the steps below. 1. Before you start, be sure you have enough room around the vehicle. When you are doing check, the vehicle could this 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. It should be parked a on level surface. 2. Firmly apply the parking brake (see "Parking Brake" in the Index if necessary). 2. Firmly apply both the parking brake (see "Parking Brake" in the Indexif necessary) and the regular brake. NOTE: Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts. 3. On automatic transmission vehicles, 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. On manual transmission vehicles, put the shiftlever in NEUTRAL (N), push the clutch down halfway and try to start the engine. The starter should work only when the clutch is pushed down all the way to the floor. If the starter works when the clutch isn't pushed all the way down, your vehicle needs service. 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 start theengine. Without applying the regular brake, try to movethe shift lever out of PARK (P) with normal effort. If the shift lever moves out of PARK (P), your vehicle's BTSI needs service. 7-49