Front 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 curtains and
side airbags are activated. 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 safety belt energy management retractors
The front outboard 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
Energy management
feature- front outboard
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 and chimes
section in the
Instrument Cluster
chapter. Routine maintenance of the Personal Safety System is not
required.
The Restraints Control Module (RCM) monitors its own internal circuits
and the circuits for the airbag supplemental restraints, crash sensor(s),
safety belt pretensioners, front safety belt buckle sensors, driver seat
position sensor, and front passenger sensing system. In addition, the
RCM also monitors the restraints warning light in the instrument cluster.
A difficulty with the system is indicated by one or more of the following.
•
The warning light will either flash or stay lit.
•
The warning light will not illuminate immediately after ignition is
turned on.
•
A series of five beeps will be heard. The tone pattern will repeat
periodically until the problem and warning light are repaired.
If any of these things happen, even intermittently, have the Personal Safety
System serviced at an authorized dealer immediately. Unless serviced, the
system may not function properly in the event of a collision.
Seating and Safety Restraints
130
2012 MKZ
(378)
Owners Guide, 2nd Printing
USA
(fus)
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