GM Service Manual Online
For 1990-2009 cars only

Vehicles with rear door security locks prevent passengers from opening the rear doors from the inside.


Object Number: 831642  Size: A3

On vehicles with this feature, the rear door security locks are located on the inside edge of each rear door. You must open the rear doors to access them.

To set the security locks, do the following:

  1. Insert the key into the lock below the rear door security lock label and turn it to the horizontal position.
  2. Close the door.
  3. Repeat the steps for the other rear door.

To open a rear door while the security lock is on, do the following:

  1. Unlock the door using the remote keyless entry transmitter, the power door lock switch, or by lifting the rear door manual lock.
  2. Open the door from the outside.

To cancel the rear door security lock, do the following:

  1. Unlock the door and open it from the outside.
  2. Insert the key into the lock below the rear door security lock label and turn it to the vertical position.
  3. Repeat the steps for the other lock.