Anti-Theft - Active (G2298876): Overview

The active anti-theft system monitors all doors, hood and tailgate for unauthorized opening. In some markets the anti-theft system also incorporates monitoring of the passenger compartment and vehicle tilt sensing.

The active anti-theft system is controlled by the following body system control modules:

Body Control Module/Gateway Module (BCM/GWM)
Driver Door Module (DDM)
Passenger Door Module (PDM)
Rear Door Module (RDM) - (quantity 2)
Instrument Cluster (IC)
Remote Function Actuator (RFA).

The BCM/GWM is the main controller in the system. The BCM/GWM controls the following security functions, in addition to other vehicle functions:

Single locking, double locking (market dependant) and unlocking (both central unlock and single point entry).
Monitoring of hood switch, door ajar switches and the tailgate ajar switch of the Central Door Locking (CDL) system.
Passive Entry Passive Start (PEPS) system.
Volumetric sensor.
Smart key transponder reading.
Alarm system sounder - Battery Back-Up Sounder (BBUS) or passive sounder.
Passive arming and disarming.
Panic alarm function.
Passenger compartment lighting.

Depending on vehicle configuration, 2 levels of vehicle anti-theft alarm are available:

Perimeter sensing mode - Monitors all opening panels.
Perimeter with alarm sensing mode - Monitors the passenger compartment for intrusion and it also incorporates a tilt sensor to monitor if the vehicle is being moved.

NOTE: Volumetric mode and tilt sensing are not available in certain markets.

Perimeter Sensing Mode

All apertures (doors, tailgate and hood) are monitored for ajar status (doors ajar and latch status change).

A visual (via turn signal indicators) and audible alarm is emitted via an alarm system sounder and vehicle horns (market dependent) in the event of unauthorized access. The alarm is also triggered in the event of an unauthorized start request.

Smart Key

The smart key provides the following functionality:

Unlock (central unlock or single point entry).
Single lock and double lock (market dependant).
Tailgate release.
Approach lighting.
Panic alarm.

The lock and unlock switches also control a 'lazy' lock and unlock feature which will automatically close or open the windows with an extended press of the applicable switch. This feature is only available in certain markets and is controlled in conjunction with the door modules.

WARNING: Never double lock the vehicle with any person or animal inside.

NOTE: Double locking is only available in certain markets.

The smart key contains an emergency key. This can be used in the event of failure of the smart key or the startup battery to unlock the vehicle. The driver door handle contains a concealed mechanical key barrel which can be used with the emergency key to access the vehicle. This will not disable the perimeter or alarm sensors systems and the visual and audible alarm will be activated when the door is unlocked/opened. To cancel the alarm, the smart key must be held next to the Immobilizer Antenna Unit (IAU) and the stop/start switch must be operated.

Emergency Locking

On the inside face of each door there is an emergency key aperture. This is for use with the emergency key in the event of a failure of the startup battery, to lock the vehicle.

Remove the cover and insert the emergency key into the aperture to mechanically lock each door in turn, the driver door being the last door to be locked. Please make sure that the emergency key is removed from the emergency key aperture before each door is closed.

For additional information, Refer to: HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .