GM Service Manual Online
For 1990-2009 cars only

With this feature, you can lock and unlock the doors from about 26 feet (8 m) away using the remote keyless entry transmitter supplied with your vehicle.


Object Number: 807790  Size: A3

[block ] (Lock): Press this button on the remote keyless entry transmitter one time to lock the doors. The parking lamps will flash once. This also arms the content theft-deterrent system.

Pressing the lock button two times within three seconds will lock the doors. The parking lamps will flash twice and the horn chirps.

(Unlock)Press this button on the remote keyless entry transmitter one time to unlock the driver's door. The parking lamps will flash three times and the headlamps and interior lamps will come on. The interior lights will stay on for 20 seconds or until the key is turned in the ignition. Press the button again within five seconds to unlock the rest of the doors. The unlock button also disarms the content theft-deterrent system.

(Panic Alarm):  Press the button with the horn symbol when the ignition is turned off. The horn will sound and the parking lamps and dome lamp will flash for up to two minutes. To stop the panic alarm, press this button again.

The remote keyless entry transmitter is used to arm/disarm the content theft-deterrent system. Your vehicle's theft-deterrent system can be programmed to three different modes. See Content Theft-Deterrent

If you accidentally set off the alarm when entering or exiting the vehicle, you can shut it off by pressing the lock or unlock button once or the panic alarm button twice.

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.

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 will not work at the normal range in any location. If you have to get close to your vehicle before the transmitter works, it is 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.

  1. Use a flat thin object to pry open the transmitter.

  2. Object Number: 1261914  Size: B3
  3. Once the transmitter is separated, use a pencil or similar object to remove the old battery. Do not use a metal object.
  4. Insert the new battery as the instructions under the cover indicate.
  5. Snap the transmitter back together tightly to be sure no moisture can enter.
  6. Check the operation of the transmitter.

If the transmitter does not work, try synchronizing your transmitter with your receiver. See "Resynchronization" for more information.

Resynchronization

This is used to keep the transmitter of the vehicle communicating with the receiver of the vehicle. Resynchronization may be required due to the security method used by this system.

Your vehicle has an automatic resynchronization function built into the system. If your transmitter is not working properly and you have to manually resynchronize, press the lock and unlock buttons at the same time for seven seconds while you are near your vehicle. The doors will lock or unlock, depending on their starting position. If they do not, contact your dealer for service.