seat belts ..............................................(up to the end of the DU)
additional methods of restraint .............(up to the end of the DU)
seat belt pretensioners .........................(up to the end of the DU)
air bag...................................................(up to the end of the DU)
air bag...................................................(up to the end of the DU)
methods of restraint in addition to the front seat belts (up to the end of the DU)
additional methods of restraint
to the front seat belts ......................(up to the end of the DU)
methods of restraint in addition to the seat belts (up to the end of the DU)
pretensioners .........................................................(current page)
METHODS OF RESTRAINT IN ADDITION TO THE FRONT SEAT BELTS (1/3)
Depending on the vehicle, they are
composed of:
– seat belt pretensioners;
– chest-level load limiters;
– air bags for driver and front pas-
senger.
These systems are designed to act in-
dependently or together when the ve-
hicle is subjected to a frontal impact.
Depending on the severity of the
impact, the system can trigger:
– seat belt locking;
– the seat belt inertia reel pretensioner
(which engages to correct seat belt
slack);
– the front air bags.
Load limiter
Above a certain severity of impact, this
mechanism is used to limit the force of
the belt against the body so that it is at
an acceptable level.
Pretensioners
The pretensioners hold the seat belt
against the body, holding the occupant
more securely against the seat, thus in-
creasing the seat belt’s efficiency.
With the ignition on, if the vehicle is
subject to a significant frontal impact
the system may, depending on the se-
verity of the impact, trigger inertia reel
pretensioner 1 on the front seats.
– Have the entire restraint
system checked following
an accident.
– No operation whatso-
ever is permitted on any part of
the system (pretensioners, air
bags, computers, wiring) and the
system components must not
be reused on any other vehicle,
even if identical.
– To avoid incorrect triggering of
the system which may cause
injury, only qualified personnel
from an approved dealer may
work on the pretensioner and air
bag system.
– The electric trigger system may
only be tested by a specially
trained technician using special
equipment.
– When the vehicle is scrapped,
contact an approved dealer for
disposal of the pretensioner and
air bag gas generators.
1
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