Perimeter Alarm

The BCM controls the operation of the perimeter alarm. It monitors inputs from the RKE system (includes the keyless entry keypad), the power door lock system, PATS and the ignition status to determine when to arm the perimeter alarm.

The BCM monitors all of the door ajar switches, the luggage compartment lid ajar switch, the hood ajar switch and the ignition status to determine when to activate the perimeter alarm. When the BCM detects an input indicating an unauthorized entry into the vehicle, the BCM activates the perimeter alarm by sounding the horn and flashing all the turn signals and interior courtesy lamps at regular intervals.

The BCM monitors the RKE system (includes the keyless entry keypad), the luggage compartment lid anti-theft inhibit switch (if equipped) and PATS to determine when to disarm the perimeter alarm.

For vehicles equipped with a luggage compartment lid anti-theft inhibit switch (vehicles with a luggage compartment lid key cylinder), the perimeter alarm only disarms for the luggage compartment access. The perimeter alarm is still armed for the hood and all the doors. After the luggage compartment lid is closed, the perimeter alarm automatically arms after a 20-second countdown.