Anti-Theft - Perimeter

Anti-Theft

NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM).

The perimeter anti-theft alarm system consists of the following:

- Door ajar input
- Door lock control switch input
- Hood switch
- Horn
- Liftgate ajar input
- Integrated Keyhead Transmitter (IKT) key
- Keyless entry keypad
- Turn signals
- Smart Junction Box (SJB)

The perimeter alarm system protects the vehicle from unauthorized entry by sounding the horn and flashing both the turn signals and courtesy lights when an unauthorized entry occurs.

Arming the Perimeter Alarm

The perimeter alarm is ready to arm any time the ignition is off. Any of the following pre-arms the alarm system:

- pressing the LOCK button on an IKT.
- pressing the door lock control switch to the lock position with the door open, then closing the door.
- pressing and holding the 7/8 and 9/0 buttons simultaneously on the keyless entry keypad.

Once the system is pre-armed, there is a 20-second countdown before the perimeter alarm is armed. Each entry point to the vehicle (hood, door or liftgate) are armed separately and must be closed before that entry point begins the 20-second countdown to become armed. If all entry points are closed, the turn signals flash indicating that all entry points are entering the 20-second countdown.

Perimeter Alarm Activation

The perimeter alarm has a 12-second delay when the driver door is unlocked using a key in the door lock cylinder and then opened. During the delay, a chime sounds and "TO STOP ALARM START VEHICLE" is displayed in the message center. If the perimeter alarm is not disarmed within the 12-second delay, the alarm is activated.

The perimeter alarm is activated when:

- any passenger door, liftgate or the hood is opened without an electronic unlock command from an IKT or keyless entry keypad received first.
- the driver door is opened without an unlock command from an IKT or keyless entry keypad received first and the 12-second delay has expired.
- the ignition is turned to the RUN position without a valid PATS key read received.

Disarming the Perimeter Alarm

The perimeter alarm can be disarmed by:

- pressing the UNLOCK button on a programmed IKT.
- using a programmed IKT to transition the ignition to the RUN position.
- entering the correct vehicle unlock code on the keyless entry keypad.

The perimeter alarm can be deactivated by pressing the PANIC button on an IKT. All of the lamps stop flashing and the horn stops sounding, but the alarm is still armed.

Panic Alarm

The panic alarm operates similar to the perimeter alarm, but is only controlled by the panic button on the IKT. Refer to Handles, Locks, Latches and Entry Systems Description and Operation for information on the panic alarm operation.