GM Service Manual Online
For 1990-2009 cars only

Automatic Door Lock Operation Modes

    • Shift out of PARK lock enabled (modes 2, 3 and 4): Locks all doors when shifting the transaxle out of PARK with the driver's door closed.
    • Ignition OFF unlock enabled (mode 3): Unlocks all doors when turning the ignition switch from the RUN to the UNLOCK position.
    • Shift into PARK unlock enabled (mode 4): Unlocks all doors when shifting the transaxle into PARK.

Changing the Automatic Door Lock Operation Mode

Perform the following procedure to change the automatic door lock operation mode:

  1. Turn off the IP dimmer switch.
  2. Turn the ignition switch to the LOCK position.
  3. Remove the BCM PRGRM fuse.
  4. Turn the ignition switch to the ACC position.
  5. • The BCM sounds the chime a number of times equivalent to the BCM type installed on the vehicle (1, 2, 3, or 4 chimes).
    • Now the BCM has entered the feature customization mode.
  6. To change the automatic door lock operation mode, press and release the LOCK on either door lock switch.
  7. • The BCM sounds the chime a number of times equivalent to the automatic door lock operation mode.
    • A transition past mode 4 repeats the sequence starting with mode 1.

The automatic door lock operation modes are as follows:

MODE

Shift Out Of Park Lock

Ignition Off Unlock

Shift Into Park Unlock

1

Disabled

Disabled

Disabled

2

Enabled

Disabled

Disabled

3

Enabled

Enabled

Disabled

4

Enabled

Disabled

Enabled

To exit and save the current customization mode:

  1. Turn the ignition switch to the lock position.
  2. Reinstall the BCM PRGRM fuse.

If unable to change lock modes, refer to Feature Customization Mode Inoperative for diagnosis and repair.

Locking Control Modes

    • Last door closed locking enabled (modes 3 and 4): When pressing LOCK on either door lock switch with the ignition switch in the LOCK position, this mode locks all doors five seconds after closing all vehicle doors.
    • Lockout prevention enabled (modes 2 and 4): When pressing LOCK on either door lock switch with the key in the ignition cylinder and the driver's door is open, the BCM does not lock the doors.

Changing the Locking Control Mode

Perform the following procedure to change the locking control mode:

  1. Turn off the IP dimmer switch.
  2. Turn the ignition switch to the LOCK position.
  3. Remove the BCM PRGRM fuse.
  4. Turn the ignition switch to the ACC position.
  5. • The BCM sounds the chime a number of times equivalent to the BCM type installed on the vehicle (1, 2, 3, or 4 chimes).
    • Now the BCM has entered the feature customization mode.
  6. To change the locking control mode; press and release the UNLOCK on either door lock switch.
  7. • The BCM sounds the chime a number of times equivalent to the locking control mode.
    • A transition past mode 4 repeats the sequence starting with mode 1.

The locking control modes are as follows:

Mode

Last Door Closed Locking

Lockout Prevention

1

Disabled

Disabled

2

Disabled

Enabled

3

Enabled

Disabled

4

Enabled

Enabled

To exit and save the current customization mode:

  1. Turn the ignition switch to the LOCK position.
  2. Reinstall the BCM PRGRM fuse.

If unable to change locking modes, refer to Feature Customization Mode Inoperative for diagnosis and repair.