Anti-Theft - Perimeter

Anti-Theft

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

- Courtesy lighting

- Door ajar input

- Door lock control switch input

- Hood switch

- Horn

- Intelligent Access (IA) key (if equipped)

- Integrated Keyhead Transmitter (IKT) key

- Keyless entry keypad

- Liftgate ajar input

- Passive Anti-Theft System (PATS) key read

- Turn signals

- Body Control Module (BCM)

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. The horn and lights are active for 30 seconds. After 30 seconds, the horn stops sounding, but the lights continue to flash for up to 5 minutes.

The perimeter alarm only activates 10 times per arming cycle. After that the alarm does not activate. To enable the perimeter alarm again, disarm the perimeter alarm and then arm it again.

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 a Remote Keyless Entry (RKE) transmitter.

- pressing the door lock control switch to the lock position with the door open, then closing the door.

- pressing 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 and opened using a key in the door lock cylinder. 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 first receiving an electronic unlock command from a RKE (Remote Keyless Entry) transmitter or keyless entry keypad.

- the driver door is opened without first receiving an unlock command from an RKE (Remote Keyless Entry) transmitter, keyless entry keypad, or IA (Intelligent Access) command and the 12-second delay has expired.

- the passenger door or liftgate is opened without first receiving an IA (Intelligent Access) command (if equipped).

- the ignition is transitioned to RUN without a valid PATS (Passive Anti-Theft System) key read received.

Disarming the Perimeter Alarm

The perimeter alarm can be disarmed by:

- pressing the unlock button on a programmed RKE (Remote Keyless Entry) transmitter.

- pressing the liftgate release button on a programmed RKE (Remote Keyless Entry) transmitter.

- unlock the driver or passenger door with the IA (Intelligent Access) feature (if equipped)

- open the liftgate with the IA (Intelligent Access) feature (if equipped)

- using a programmed key to transition the ignition to the RUN mode.

- entering the correct vehicle unlock code on the keyless entry keypad.

The perimeter alarm can be deactivated by pressing the panic button on a RKE (Remote Keyless Entry) transmitter. All of the lamps stop flashing and the horn stops sounding, but the alarm is still armed.

Intelligent Access (IA) Key Disable

For security reasons, when the perimeter alarm enters an armed state, the Remote Function Actuator (RFA) module searches the interior of the vehicle for any programmed IA (Intelligent Access) keys. If the RFA (Remote Function Actuator) module detects any programmed IA (Intelligent Access) keys inside the vehicle when the perimeter alarm is armed, it disables the IA (Intelligent Access) key. The RKE (Remote Keyless Entry) and the IA (Intelligent Access) functions of that key still operate, but the RFA (Remote Function Actuator) module ignores any start command associated with that key. The disabled IA (Intelligent Access) key is enabled when the perimeter alarm is disabled.

Panic Alarm

The panic alarm operates similar to the perimeter alarm, but is only controlled by the panic button on a RKE (Remote Keyless Entry) transmitter. Refer to Doors, Hood and Trunk &/or Locks for information on the panic alarm operation.