Brake Shift Interlock System

The brake shift interlock system consists of:

• a brake shift lock actuator (BSIA).
  • A transmission selector lever position insert, which bolts to the steering column and secures the BSIA.
  • A contained PARK indicator switch.
• electrical circuits to supply power to unlock the BSIA.

The BSIA locks the selector lever in PARK:

• when the ignition switch lock cylinder is in the LOCK position.
• with the ignition switch lock cylinder in the RUN position and the brake pedal released.

The BSIA releases the selector lever:

• with the ignition switch lock cylinder in the RUN position and the brake pedal actuated.