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.

In addition, the system illuminates the interior lamps for a set period of time. Also, a content theft security system can be activated to monitor and set a horn alarm if the vehicle's door or trunk is opened without first unlocking the door or trunk with the remote keyless entry transmitter.

The remote keyless entry system consists of a receiver, which is located in the vehicle, and two hand held transmitters.


Object Number: 806164  Size: A3

The following functions are available with the remote keyless entry system:

LOCK: Press this button to automatically lock all doors. In addition, if all doors and the trunk are closed, the headlamps will flash once, the interior lamps will turn off, and the vehicle content theft security system will arm. See Content Theft-Deterrent .

UNLOCK: Press this button to unlock the driver's door. In addition, the headlamps will flash twice, the interior lamps will turn on for about 20 seconds or until the ignition is turned on, and the content theft security system will disarm. See Content Theft-Deterrent . If you press this button again within five seconds, all remaining doors will unlock.

(Trunk Release): Press this button to open the trunk. You can open the trunk with the transmitter when the vehicle speed is less than 2 mph (3 km/h). The headlamps will flash twice.

(Panic): Press this button to sound the horn and make the headlamps and interior lamps flash alternately. They can be turned off by pressing this button again or by turning the ignition to ON. The alarm will sound for two minutes unless cancelled by the driver.

Your dealer can change the settings to disable the headlamp flash and horn chirp features. Your dealer can also change the settings to allow the horn to chirp twice on the first press of the UNLOCK button. See your dealer for more information.

Radio Personalization

Your vehicle can store different radio preset stations depending on which keyless entry transmitter you use to unlock the doors. The radio will recall all the stored settings associated with that transmitter. Any radio setting changes will be assigned to the transmitter last used to unlock the doors.

This feature can be disabled by your dealer if you desire. Contact your dealer for further information.

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 two 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.


Object Number: 812555  Size: B3

To replace the battery in the transmitter:

  1. Use a coin or similar object to separate the bottom half from the top half of the transmitter.
  2. Remove the battery and replace it with the new one. Make sure the positive side of the battery faces down. For battery replacement, use a three-volt battery, type CR2032, or equivalent.
  3. Read the instructions inside the case.
  4. Put the two halves back together. Make sure the cover is on tightly, so water will not get in.
  5. Check the operation of the transmitter with your vehicle. If the transmitter does not work, try resynchronizing the transmitter with the receiver.

Resynchronization

Your remote keyless entry system is equipped with a security system that prevents anyone from recording and playing back your signal. The transmitter does not send the same signal twice to the receiver. The receiver will not respond to a signal that has been sent to it more than once.

Normally, the transmitter and receiver resynchronize automatically. However, under certain circumstances, manual resynchronization may be required.

To resynchronize your transmitter and receiver, follow these directions:

  1. Stand close to your vehicle.
  2. Press and hold the LOCK and UNLOCK buttons on the transmitter at the same time.
  3. Hold the buttons for at least 10 seconds. During this time, the doors should lock and unlock once. This confirms the resynchronization. If the doors do not lock and unlock, see your dealer for service.