Ford Focus Owners Manual: Keys and remote controls

Disabling the passenger airbag

WARNING: Make sure that the passenger airbag is disabled when using a rearward facing child restraint on the front passenger seat. Fitting the passenger airbag deactivation switch WARNING: ...

General information on radio frequencies

CAUTION: The radio frequency used by your remote control can also be used by other short distance radio transmissions (e.g. amateur radios, medical equipment, wireless headphones, remote contr ...

More about Ford Focus:

Ford Focus 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. The alarm sounds for 30 seconds if an unauthorised person opens a door, the luggage compartment or ...