GM Service Manual Online
For 1990-2009 cars only

If your vehicle has this feature, you can lock and unlock your doors or unlock your trunk from about 3 feet (1 m) up to 30 feet (9 m) away using the remote keyless entry transmitter supplied with your vehicle.

The numbers on the back of the transmitters correspond to DRIVER #1 and DRIVER #2 on the DIC (if equipped). See Driver Information Center (DIC) for more information.


Object Number: 810885  Size: A3

(Unlock): The driver's door will unlock and the exterior lamps may flash twice when this button is pressed.

If you have the optional fuel door lock, the fuel door will also unlock.

If the unlock button is pressed again within five seconds, all the doors will unlock. Pressing the unlock button will also illuminate the interior lamps. See "Entry Lighting" under Interior Lamps and "Security Feedback" later in this section.

[block ] (Lock):  All doors will lock, the exterior lamps may flash once and the horn may chirp when this button is pressed. See "Security Feedback" later in this section. Pressing the lock button may also turn off the interior lamps if illuminated. If you have the optional fuel door lock, the fuel door will also lock when this button is pressed.

(Trunk): The trunk will unlock when this button is pressed when the ignition is in OFF. This button will also work when the ignition is on, but only while in PARK (P) or NEUTRAL (N).

(Remote Alarm): Your transmitter comes equipped with a remote alarm. When this button is pressed, the horn will sound and the headlamps and taillamps will flash for up to 30 seconds. The remote alarm can be turned off by pressing this button again or by turning the ignition to ON. If your vehicle has the Universal Theft-Deterrent feature, you may also turn off the alarm by unlocking the vehicle with a key. See Universal Theft-Deterrent .

Personalization Features

The following features, if available on your vehicle, can be programmed to each driver's preference for each of the remote keyless entry transmitters:

    • Programmable Automatic Door Locks
    • Security Feedback
    • Delayed Locking
    • Perimeter Lighting
    • Seat and Mirror Recall

If your vehicle is equipped with the Driver Information Center (DIC), you must program these features through the DIC. See DIC Vehicle Personalization .

Security Feedback

This feature provides feedback to the driver when the vehicle receives a command from the remote keyless entry transmitter. Feedback is only provided if all doors are closed, the ignition is off and the Retained Accessory Power (RAP) is inactive.

If your vehicle is equipped with the Driver Information Center (DIC), you must program this feature through the DIC. See DIC Vehicle Personalization .

The following modes may be selected:

    • Mode 1: No feedback when locking or unlocking vehicle.
    • Mode 2: Parking lamps and the daytime running lamps will flash twice when unlocking the vehicle and will flash once when locking the vehicle.
    • Mode 3: Horn will chirp when all doors are unlocked (second unlock button press) and when locking the vehicle.
    • Mode 4: Parking lamps and the daytime running lamps will flash twice each time the button with the unlock symbol is pressed; the horn will chirp when all doors are unlocked. Parking lamps and the exterior lamps will flash once and the horn will chirp when locking the vehicle.

To change to another mode, do the following:

  1. Keep all doors closed, the vehicle in PARK (P) and the ignition on throughout this procedure.
  2. Press and hold the driver's power door lock switch in LOCK through Step 4.
  3. Press the button with the trunk symbol on the transmitter. The transmitter will remain in its current mode and the horn will chirp as feedback.
  4. Press the button with the trunk symbol again. Each time the transmitter's trunk button is pressed, the mode will advance by one, going from Mode 2 to 3 to 4, etc. and the horn will chirp as feedback.
  5. Release the power door lock switch. The security feedback will remain in the most recent mode selected.

This procedure changes the mode for the transmitter used to change this setting. The procedure will need to be repeated for the second transmitter.

To verify the mode selected, remove the key from the ignition and close all of the doors after you've exited the vehicle. Press the lock button on the transmitter to be verified and confirm the appropriate feedback. Repeat with the unlock button.

Matching Transmitter(s) to Your Vehicle

Each remote keyless entry transmitter is coded to prevent another transmitter from unlocking your vehicle. If a transmitter is lost or stolen, a replacement can be purchased through your dealer. Remember to bring any remaining transmitters with you when you go to your dealer. When the dealer matches the replacement transmitter to your vehicle, any remaining transmitters must also be matched. Once your dealer has coded the new transmitter, the lost transmitter will not unlock your vehicle. Each vehicle can have a maximum of four transmitters matched to it.

See your dealer to match additional transmitters to your vehicle.

Battery Replacement

Under normal use, the battery in your remote keyless entry transmitter should last about four years.

You can tell the battery is weak if the transmitter won't work at the normal range in any location. If you have to get close to your vehicle before the transmitter works, it's probably time to change the battery.

Notice: When replacing the battery, do not touch any of the circuitry on the transmitter. Static from your body could damage the transmitter.


Object Number: 811566  Size: B3

To replace the battery, do the following:

  1. Insert a thin coin, or similar object, into the notch near the key ring. Turn it counterclockwise to separate the two halves of the transmitter.
  2. Once the transmitter is separated, use a pencil eraser to remove the old battery. Do not use a metal object.
  3. Remove and replace the battery. Replace it as the instructions inside the cover indicate. Use one Duracell® battery, type DL-2032, or a similar type.
  4. Snap the transmitter back together tightly to be sure no moisture can enter.
  5. Check the operation of the transmitter.