Ford Focus Owners Manual: Alarm

Disarming the engine immobiliser

The engine immobiliser is disarmed automatically when you switch the ignition on with a correctly coded key. The indicator in the instrument cluster will come on for approximately three seconds a ...

Arming the alarm

The system is armed as soon as the vehicle is locked and acts as a deterrent to unauthorised persons who attempt to open the doors, bonnet or luggage compartment, or remove the audio system. T ...

More about Ford Focus:

Ford Focus Key Programming Switch State Control - General Procedures
Special Tool(s) Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool NOTE: The spare key programming switch is a programmable switch which provides the capability to enable/disable ...