GM Service Manual Online
For 1990-2009 cars only

Unlock Driver's Door Only

Momentarily press the unlock button in order to perform the following functions:

    • Unlock the driver's door only.
    • Illuminate the interior lamps for approximately 20 seconds or until the ignition is turned ON.
    • Flash the daytime running lights (if selected ON in personalization).
    • Chirp the horn (if selected ON in personalization).
    • Disarm the content theft deterrent system (CTD).
    • Identify the driver to the radio. The radio will then revert to the station presets, the last station, the last volume settings, and the last playback mode used by that driver.

Unlock All Doors

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 20 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.
    • Flash the daytime running lights (if selected ON in personalization).
    • Chirp the horn (if selected ON in personalization).
    • Enable the content theft deterrent system (CTD) to arm after all of the doors are closed.

Rear Compartment Lid Release

If the vehicle transaxle is not in motion, a single press of the trunk release button will open the trunk lid. The interior lamps will not illuminate.

Alarm

A single press of the alarm button performs the following functions:

    • Flashes the interior lamps.
    • Pulses the horn.
    • Flashes the daytime running lights for 2 minutes or until the following conditions occur:
       - The Alarm button is pressed again.
       - The vehicle is started (the BCM receives a valid Passlock signal from the ignition lock cylinder).

Rolling Code

The keyless entry system uses a rolling code technology. Rolling code technology prevents anyone from recording the message sent from the transmitter and using the message in order to gain entry to the vehicle. The term "rolling code" refers to the way that the keyless entry system sends and receives the signals. The transmitter sends the signal in a different order each time. The transmitter and the body control module (BCM) are synchronized to the appropriate order. If a programmed transmitter sends a signal that is not in the order that the BCM expects, the system will not function.