Ford Focus 2004 Owner's Manual page 76

Controls and features
ANTI-THEFT ALARM SYSTEM
WITH INTERIOR SENSORS
This system acts as a deterrent
against unauthorised intrusion by
sensing any movement within the
vehicle.
The sensors in the ST170 are
located in the interior light unit
(optional).
Activation
The interior sensing alarm is
activated together with the double
locking system.
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This system functions
correctly only if all windows
and the sunroof are completely
closed. In addition to this, the
sensors located at the top of the
door pillars must not be covered
up. The system adapts to
conditions in the vehicle's interior
but it should not be activated if
any persons, animals or other
moving objects are inside the
vehicle.
Delayed activation and
confirmation of activation
This function is the same as the
anti-theft alarm system.
Alarm
Unauthourised entry into the
vehicle's interior will trigger the
alarm in the same way as the
anti-theft system.
Additional heating system
Do not activate the interior
anti-theft alarm if an additional
heating system is used, as the
alarm could otherwise be set off.