Your vehicle has a content theft-deterrent alarm system.
To activate the theft-deterrent system:
The key must be removed from the ignition to arm the system.
If the theft-deterrent system is activated and a door or the liftgate is opened without using the RKE transmitter, a 10 second pre-alarm will occur, and the security light will flash. The horn will sound rapidly for 10 seconds. If you do not press unlock on the RKE transmitter or insert the key in the ignition and turn if from the LOCK/OFF position, the alarm will go off. The horn will sound and the headlamps will flash for 30 seconds.
After the alarm has sounded for 30 seconds, the system will re-arm itself automatically.
To disarm the theft-deterrent system, do one of the following: