Locking and Alarm Systems: Notes

All vehicles incorporate a remote handset Central Door Locking (CDL) system and an alarm system with perimetric and volumetric protection functions. Specific features and modes of operation depend on the car/key memory settings in the BCU.

The CDL system controls the locking and unlocking of the side doors and fuel filler flap, and the opening of the tail doors. System features include automatic locking at a set vehicle speed and Single Point Entry (SPE).

The alarm system monitors for unauthorized entry, opening of doors and bonnet, vehicle movement and interference with the electrical system, and sounds an alarm if an event is detected. The alarm system can be configured to automatically arm and disarm with operation of the locking system. The locking and alarm systems incorporate:

• Actuators and switches in the door latches
• A bonnet switch
• A fuel filler flap actuator
• A CDL switch
• Upper tail door internal release switch
• Upper tail door external release switch
• Lower tail door release switch
• A lower tail door release relay
• Remote handsets
• A Radio Frequency (RF) receiver (market dependent)
• An infrared receiver (market dependent)
• An alarm Light Emitting Diode (LED)
• A Battery Backed Up Sounder (BBUS)
• A volumetric sensor (if fitted)
• A tilt sensor (if fitted).