2002 Cadillac DeVille Owner's Manual - Page 87

Remember, the theft-deterrent system won't 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: 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 system 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" in the Index. 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. D The vehicle should be locked with the door key or the manual door lock after the doors are closed if you don't want to arm the theft-deterrent system. D Always unlock a door with a key or use the remote keyless entry transmitter system. 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 system, 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. 2-19