Seat, seatbelt and SRS airbags/Front seatbelt pretensioners
Front seatbelt pretensioners
S01AF
The driver’s and front passenger’s seat-
belts have a seatbelt pretensioner. The
seatbelt pretensioners are designed to be
activated in the event of an accident
involving moderate to severe frontal and
side collisions and rollover accidents.
belt more effectively restrains the driver.
When a seatbelt pretensioner is activated,
an operating noise will be heard and a
small amount of smoke will be released.
These occurrences are normal and not
harmful. This smoke does not indicate a
fire in the vehicle.
Once the seatbelt pretensioner has been
activated, the seatbelt retractor remains
locked. Consequently, the seatbelt cannot
be pulled out and retracted and therefore
must be replaced.
NOTE
The following sensors serve as sensors for
the pretensioners.
. Front sub sensor
. Front door impact sensor
. Rollover sensor
If the sensor detects a certain predeter-
mined amount of force during frontal or
side collisions or rollover accidents, the
front seatbelt is quickly drawn back in by
the retractor to take up the slack so that the
. Seatbelt pretensioners are not de-
signed to activate in minor impacts.
. In cases of rollover accidents, as the
SRS curtain airbags deploy, the seat-
belt pretensioners are activated simul-
taneously.
. In cases of frontal collisions, the
following components will operate si-
multaneously.
– Seatbelt pretensioner for driver
– Seatbelt pretensioner for front
passenger
– SRS frontal airbag for driver
– SRS frontal airbag for front pas-
senger*
– SRS seat cushion airbag for dri-
ver
1-25
– SRS seat cushion airbag for front
passenger*
– SRS curtain airbags (both sides)
(if an offset frontal collision occurs)
*: This does not operate if the occupant
detection system deactivates airbag op-
eration. For details, refer to “Front
passenger’s SRS frontal airbag” F1-53.
. In cases of side collisions, the
following components will operate si-
multaneously.
– SRS curtain airbag (impacted
side)
– SRS side airbag (impacted side)
(when any of the center pillar impact
sensors/front door impact sensors
senses an impact force)
– Seatbelt pretensioner for driver
(when the driver’s side front door
impact sensor senses an impact
force)
– Seatbelt pretensioner for front
passenger (when the front passen-
ger’s side front door impact sensor
senses an impact force)
. Pretensioners are designed to func-
tion on a one-time-only basis. In the
event that a pretensioner is activated,
both the driver’s and front passenger’s
seatbelt retractor assemblies should
be replaced only by an authorized
SUBARU dealer. When replacing seat-
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