GM Service Manual Online
For 1990-2009 cars only

With 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.

If your vehicle is equipped with the DIC, the numbers on the back of your transmitter correspond to DRIVER #1 and DRIVER #2 on the DIC. For more information see Driver Information Center (DIC) .


Object Number: 810885  Size: A3

(Unlock): When this button is pressed, the driver's door will unlock and the exterior lights will flash twice.

If the unlock button is pressed again within five seconds, all doors will unlock, the exterior lamps will flash twice and the horn may sound. See "Security Feedback" later in this section for more information.

Pressing the unlock button will also illuminate the interior lamps. See "Entry Lighting" under Interior Lamps .

[block ] (Lock): When this button is pressed, all doors will lock, the exterior lamps will flash once and the horn may sound.

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

(Instant Alarm): When this button is pressed, the horn will sound and the headlamps and taillamps will flash for up to 30 seconds. This can be turned off by pressing the instant alarm button again or by turning the ignition on. If your vehicle is equipped with the content theft-deterrent feature, you may also turn off the instant alarm by unlocking the vehicle with a key.

Personalization Features

The following list of features, if available on your vehicle, can be programmed to each driver's preference.

    • Automatic Door Locks: This feature programs your door locks to automatically lock or unlock when shifting in and out of PARK (P).
    • Security Feedback: This feature provides feedback to the driver when the vehicle receives a command from the remote keyless entry transmitter.
    • Delayed Locking: This feature lets the driver delay the actual locking of the vehicle. When all doors have been closed, the doors will lock automatically after five seconds.
    • Perimeter Lighting: When the button with the unlock symbol on the remote keyless entry transmitter is pressed, the daytime running lamps (DRL), parking lamps and back-up lamps will turn on.

For more detailed information and programming instructions, refer to DIC Vehicle Personalization for each individual feature listed above.

Security Feedback

This feature provides feedback 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. One of the following modes may be selected for each transmitter:

Mode 1: No feedback when locking or unlocking vehicle.

Mode 2: Parking lamps, back-up lamps and the DRL exterior lamps will flash twice when unlocking the vehicle and flash once when locking the vehicle.

Mode 3: Horn chirps when all doors are unlocked (second time the button is pressed) and when locking the vehicle.

Mode 4: Parking lamps, back-up lamps and the DRL exterior lamps will flash twice each time the button with the unlock symbol is pressed; the horn chirps when all doors are unlocked. Parking lamps and the DRL exterior lamps flash once and the horn chirps when locking the vehicle.

The exterior lamps will not flash if the manual parking lamps are on.

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

If your vehicle is not equipped with the DIC, do the following to change to another mode:

  1. Close all the doors and turn the ignition on. Keep all doors closed throughout this procedure.
  2. Press and hold LOCK on the driver's power door lock switch throughout this procedure. All the doors will lock.
  3. Press the trunk button on the transmitter. The security feedback will remain in its current mode. The horn will chirp as feedback.
  4. Press the trunk button again. Each time the trunk button is pressed, the security feedback will advance to the next mode, and the horn will chirp.
  5. Release the power door lock switch. The security feedback will remain in the most current mode selected.

This procedure only changes the mode for the transmitter used to change this setting.

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 have additional transmitters matched 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 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 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.