GM Service Manual Online
For 1990-2009 cars only

Vehicle theft is a big business, especially in some cities. Although your vehicle has a number of theft-deterrent features, we know that nothing we put on it can make it impossible to steal.


Object Number: 806223  Size: A1

The SECURITY light is located on the instrument panel cluster.

If the ignition is off and any door is open, the SECURITY light will flash, reminding you to arm the system.

To arm the system, do the following:

  1. Open the door.
  2. Lock the door using the power door lock switch with the door open or the remote keyless entry transmitter. The SECURITY light should come on and stay on.
  3. Close all the doors. The SECURITY light should go off within approximately 30 seconds.

If a door or a trunk is opened without a key or a remote keyless entry transmitter, the horn will sound and the lamps will flash for about 30 seconds.

Remember, the theft-deterrent system will not arm if you lock the doors with a key or use the manual door lock. It activates only if you use a power door lock with the door open or the remote keyless entry transmitter.

To avoid activating the alarm by accident do the following:

    • The vehicle should be locked with the door key or the manual door lock after the doors are closed if you do not want to arm the theft-deterrent system.
    • Always unlock a door with a key or use the remote keyless entry transmitter. Pressing the unlock button on the remote keyless entry transmitter disables the theft-deterrent system. Unlocking a door any other way will activate the alarm when a door or the trunk is opened.

If you activate the alarm by accident, unlock the driver's door with your key. You can also turn off the alarm by using the unlock button on the remote keyless entry transmitter, or by starting the car with a valid key.

Changes or modifications made to this system by other than an authorized service facility could void authorization to use the theft system.

Testing the Alarm

  1. From inside the vehicle, roll down the window, then get out of the vehicle, keeping the door open.
  2. From outside of the vehicle, with the door open, lock the vehicle using the power door lock or the remote keyless entry transmitter and close the door. Wait 30 seconds until the SECURITY lamp goes off.
  3. Reach in and unlock the door using the manual lock and open the door. The horn will sound and the hazard lights will flash.

You can turn off the alarm by unlocking the driver's door with your key, using the unlock button on the remote keyless entry transmitter or by starting the car with a valid key.

If the alarm does not sound when it should, check to see if the horn works. The horn fuse may be blown. To replace the fuse, see Fuses and Circuit Breakers . If the fuse does not need to be replaced, you may need to have your vehicle serviced.

To reduce the possibility of theft, always arm the theft-deterrent system when leaving your vehicle.

Valet Lockout Switch


Object Number: 810875  Size: A2

The valet lockout switch is located inside the glove box.

Press the switch to ON to disable the use of the trunk, fuel door, garage door opener and cellular telephone (option). The remote keyless entry transmitter cannot open the trunk if the valet lockout switch is in ON.

Press this switch to OFF to enable the use of the trunk, fuel door, garage door opener and optional cellular telephone.

Locking the glove box with your key will also help to secure your vehicle.