Ford Focus Owner's Manual page 48

48 Supplementary Restraints System
FRONT PASSENGER SENSING SYSTEM
WARNING: Even with Advanced Restraints Systems, children 12
and under should be properly restrained in a rear seating
position.
WARNING: Sitting improperly out of position or with the seat
back reclined too far can take off weight from the seat cushion
and affect the decision of the front passenger sensing system, resulting
in serious injury or death in a crash.
Always sit upright against your seatback, with your feet on the floor.
WARNING: To reduce the risk of possible serious injury:
Do not stow objects in seat back map pocket (if equipped) or
hang objects off seat back if a child is in the front passenger seat.
Do not place objects underneath the front passenger seat or between
the seat and the center console (if equipped).
Check the passenger airbag off or pass airbag off indicator lamp for
proper airbag Status.
Failure to follow these instructions may interfere with the passenger
seat sensing system.
WARNING: Any alteration/modification to the front passenger
seat may affect the performance of the front passenger sensing
system.
This system works with sensors that are part of the front passenger's
seat and safety belt to detect the presence of a properly seated occupant
and determine if the front passenger's frontal airbag should be enabled
(may inflate) or not.
2013 Focus (foc)
Owners Guide gf, 1st Printing
USA (fus)
The front passenger sensing system
uses a pass airbag off indicator
which will illuminate and stay lit to
remind you that the front passenger
frontal airbag is disabled.