METHODS OF RESTRAINT IN ADDITION TO THE FRONT SEAT BELTS
2
Depending on the vehicle, they will
consist of:
– seat belt inertia reel pretension-
ers;
– chest-level load limiters;
– air bags for driver and front pas-
senger.
These systems are designed to act
independently or together when the
vehicle is subjected to a frontal im-
pact.
Depending on the severity of the im-
pact, the system can trigger:
– seat belt locking;
– the seat belt inertia reel preten-
sioner (which engages to correct
seat belt slack);
– airbags.
Pretensioners
The pretensioners (in driver side)
hold the seat belt against the body,
holding the occupant more securely
against the seat, thus increasing the
seat belt’s efficiency.
With the ignition on, following a sig-
nificant frontal impact and depend-
ing on the severity of the impact, the
system may trigger the seat belt in-
ertia reel pretensioner
1
, which in-
stantly retracts the seat belt.
– Have the entire re-
straint system checked
following an accident.
– No operation whatsoever is
permitted on any part of the
system (pretensioners, air bags,
computers, wiring) and the sys-
tem 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 special-
ly trained technician using spe-
cial equipment.
– When the vehicle is scrapped,
contact an approved Dealer for
disposal of the pretensioner
and air bag gas generators.
Load limiter (in driver side)
Above a certain severity of impact,
this mechanism is used to limit the
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30 - Getting to know your vehicle
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