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 Universal Transmitter Programming - General Procedures
Universal Transmitter Programming (Fixed Code) — Early Build (Homelink®) NOTE: A new battery in the hand-held transmitter may allow quicker and easier training due to a more accurate transmission of the radio frequency signal. NOTE: This procedure is for early build vehicles only. Ve ...