GM Service Manual Online
For 1990-2009 cars only

Release the Parking Brake

To release the electric/auto park brake, turn the ignition switch to ON and move the transmission range (TR) shift lever from the PARK position. This closes the park switch inside the TR mechanism, activating the parking brake release system.

Apply the Parking Brake

Apply the parking brake by one of three methods:

    • Put the shift lever back into the PARK position
    • Pull the pull button switch
    • Turn the ignition to OFF

Any of these actions de-energizes the parking brake release system which allows the actuator to apply the parking brake.