GM Service Manual Online
For 1990-2009 cars only

Unlock Driver's Door Only

(BCM MODE 2 ONLY) Momentarily press the UNLOCK button on the keyless entry transmitter in order to perform the following functions:

    • Unlock the driver's door only.
    • Illuminate the interior lamps for approximately 40 seconds or until the ignition is turned ON.

Unlock All Doors

(BCM MODE 2 ONLY) Momentarily press the UNLOCK button a second time within 5 seconds of the first press in order to perform the following functions:

    • Unlock the remaining doors.
    • Illuminate the interior lamps for approximately 40 seconds or until the ignition is turned ON.

(BCM MODE 1 ONLY) Momentarily press the UNLOCK button in order to perform the following functions:

    • Unlock all of the doors, including the driver's door.
    • Illuminate the interior lamps for approximately 40 seconds or until the ignition is turned ON.

Lock All Doors

Press the LOCK button in order to perform the following functions:

    • Lock all of the doors.
    • Immediately turn off the interior lamps.

For further information, refer to Keyless Entry System Circuit Description .