GM Service Manual Online
For 1990-2009 cars only

This feature allows you to customize the automatic locking and unlocking of the doors when using the shift lever.

Programmable Modes

Mode 1: Both Features Off. Automatic door locking and unlocking is disabled. You will always need to lock your doors manually before driving to increase occupant safety.

Mode 2: Automatic Door Locking Only

    • The automatic door unlock feature is turned off.
    • Shift out of PARK (P) with the ignition on and the driver's door closed; all doors will lock automatically.
Mode 3: Automatic Unlocking with the Ignition Off

    • Turn off the ignition with the transaxle in PARK (P); all doors will unlock automatically.
    • Shift out of PARK (P) with the ignition on and the driver's door closed; all doors will lock automatically.
Mode 4: Automatic Unlocking with Transaxle in PARK (P)

    • Shift into PARK (P) with the ignition on; all doors will unlock automatically.
    • Shift out of PARK (P) with the ignition on and the driver's door closed; all doors will lock automatically.

Your vehicle was originally programmed to Mode 3. The mode may have been changed since then. To determine the current mode, or to change the mode, do the following:

  1. Follow the instructions for Entering Programming Mode .
  2. Press LOCK on the power door lock switch.
  3. Count the number of chimes you hear. The number of chimes indicates the vehicle's current programmed mode. If you do not wish to change the current mode, you can either exit the programming mode by following the instructions later in this section or program the next feature available on your vehicle.
  4. Press LOCK to change the current mode.
  5. Press LOCK until you hear the number of chimes corresponding to the mode selection you want.

The mode you selected is now set. You can either exit the programming mode by following the instructions later in this section or program the next feature available on your vehicle.