Front Safety Belt Usage Sensors; Front Outboard Safety Belt Pretensioners; Front Outboard Safety Belt Energy Management Retractors; Determining If The Personal Safety System Is Operational - Ford Focus Owner's Manual

Seating and Safety Restraints
The front passenger sensing system can automatically turn off the
passenger front airbag. The system is designed to help protect small
(child size) occupants from airbag deployments when they are
improperly seated or restrained in the front passenger seat contrary to
proper child-seating or restraint usage recommendations. Even with this
technology, parents are STRONGLY encouraged to always properly
restrain children in the rear seat. The sensor also turns off the airbag
when the passenger seat is empty to prevent unnecessary replacement of
the airbag(s) after a collision.
When the front passenger seat is occupied and the sensing system has
turned off the passenger's frontal airbag, the "pass airbag off" indicator
will light and stay lit to remind you that the front passenger frontal
airbag is off. See Front passenger sensing system in the Airbag
supplemental restraints (SRS) section of this chapter.

Front safety belt usage sensors

The front safety belt usage sensors detect whether or not the driver and
front outboard passenger safety belts are fastened. This information
allows your Personal Safety System to tailor the airbag deployment and
safety belt pretensioner activation depending upon safety belt usage.

Front outboard safety belt pretensioners

The safety belt pretensioners at the front outboard seating positions are
designed to tighten the safety belts firmly against the occupant's body
during frontal collisions, and in side collisions when the side air curtain
system activates. This helps increase the effectiveness of the safety belts.
In frontal collisions, the safety belt pretensioners can be activated alone
or, if the collision is of sufficient severity, together with the front airbags.

Front outboard safety belt energy management retractors

The front safety belt energy management retractors allow webbing to be
pulled out of the retractor in a gradual and controlled manner in
response to the occupant's forward momentum. This helps reduce the
risk of force-related injuries to the occupant's chest by limiting the load
on the occupant. Refer to the Energy management feature section in
this chapter.

Determining if the Personal Safety System is operational

The Personal Safety System uses a warning light in the instrument
cluster or a back-up tone to indicate the condition of the system. Refer
to the Warning light section in the Instrument Cluster chapter.
Routine maintenance of the Personal Safety System is not required.
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2009 Focus (foc)
Owners Guide, 1st Printing
USA (fus)