2006 Cadillac DTS Owner's Manual - Page 98

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 the 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. 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 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. 2-20