belt SUBARU LEGACY 2008 4.G Repair Manual

!Examples of accident in which the driver ’s/driver ’s and front passen-
ger ’s SRS frontal airbag(s) will most
likely deploy.
A head-on collision against a thick con-
crete wall at a vehicle speed of 12 to 19
mph (20 to 30 km/h) or higher activates
only the driver ’s SRS frontal airbag or both
driver ’s and front passenger ’s SRS frontal
airbags. The airbag(s) will also be acti-
vated when the vehicle is exposed to a
frontal impact similar in fashion and
magnitude to the collision describedabove. !
Examples of the types of accidents
in which it is possible that thedriver ’s/driver ’s and front passen-
ger ’s SRS frontal airbag(s) will de-
ploy.
The only the driver ’s SRS frontal airbag or both driver
’s and front passenger ’s SRS
frontal airbags may be activated when the
vehicle sustains a hard impact in the
undercarriage area from the road surface
(such as when the vehicle plunges into a
deep ditch, is severely impacted or
knocked hard against an obstacle on the
road such as a curb). Seat, seatbelt and SRS airbags
1-53
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1-54Seat, seatbelt and SRS airbags
! Examples of the types of accidents
in which deployment of the driver ’s/
driver ’s and front passenger ’s SRS
frontal airbag(s) is unlikely to occur.
There are many types of collisions which
might not necessarily require deployment of driver
’s/driver ’s and front passenger ’s
SRS frontal airbag(s). If the vehicle strikes
an object, such as a telephone pole or
sign pole, or if it slides under a truck ’s load
bed, or if it sustains an oblique offset
frontal impact, the driver ’s/driver ’sand
front passenger ’s SRS frontal airbag(s)
may not deploy depending on the level of
accident forces involved. !
Examples of the types of accidents
in which the driver ’s/driver ’s and
front passenger ’s SRS frontal
airbag(s) will basically not deploy.The driver ’s and front passenger ’s SRS
frontal airbags are designed basically not

to deploy if the vehicle is struck from the
side or from behind, or if it rolls onto its
side or roof, or if it is involved in a low-
speed frontal collision.
1) First impact
2) Second impact
In an accident where the vehicle is
impacted more than once, the driver ’s
and/or front passenger ’s SRS frontal
airbag(s) will deploy only once on the firstimpact.
Example: In the case of a double collision,
first with another vehicle, then against a
concrete wall in immediate succession,
once either or both of the driver ’s and front
passenger ’s SRS frontal airbags is/are
activated on the first impact, it/they will not
be activated on the second impact. &
SRS side airbag and SRS
curtain airbag
The SRS side airbag is stored in the door
side of each front seat seatback, which
bears an “SRS AIRBAG ”label.
In a moderate to severe side impact
collision, the SRS side airbag on the
impacted side of the vehicle deploys
between the occupant and the door panel
and supplements the seatbelt by reducing
the impact on the occupant ’s chest and
waist. The SRS side airbag operates only
for front seat occupants.
The SRS curtain airbag on each side of
the cabin is stored in the roof side
(between the front pillar and a point over
the rear seat). An “SRS AIRBAG ”mark is
located at the top of each center pillar.
In a moderate to severe side impact
collision, the SRS curtain airbag on the
impacted side of the vehicle deploys
between the occupant and the side
window and supplements the seatbelt by
reducing the impact on the occupant ’s
head.
WARNING
The SRS side airbag and SRS
curtain airbag are designed as only
a supplement to the primary protec-
tion provided by the seatbelt. They
do not do away with the need to
fasten seatbelts. It is also important
to wear your seatbelt to help avoid
injuries that can result when an
occupant is not seated in a proper
upright position.
WARNING
. Do not sit or lean unnecessarily
close to either front door. The
SRS side airbag is stored in both
front seat seatbacks next to the
Seat, seatbelt and SRS airbags
1-55
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1-56Seat, seatbelt and SRS airbags
door, and it provides protection
by deploying rapidly (faster than
the blink of an eye) in the event of
a side impact collision. However,
theforceofSRSsideairbag
deployment may cause injuries
if your head or other parts of the
body are too close to the SRS
side airbag.
. Since your vehicle is equipped
with SRS curtain airbags, do not
sit or lean unnecessarily close to
the front or rear door on either
side. Also, do not put your head,
arms and hands out of the win-
dow. The SRS curtain airbag on
each side of the cabin is stored in
the roof side (between the front
pillar and a point over the rear
seat), and it provides protection
by deploying rapidly (faster than
the blink of an eye) in the event of
a side impact. However, the force
of its deployment may cause
injuries if your head is too close
to it.
WARNING
Do not rest your arm on either front
door or its internal trim. It could be
injured in the event of SRS side
airbag deployment.

WARNING
. Never allow a child to kneel on
the front passenger ’s seat facing
the side window or to wrap his/
her arms around the front seat
seatback. In the event of an
accident, the force of the SRS
side airbag deployment could
injure the child seriously be-
cause his/her head or arms or
other parts of the body are too
close to the SRS side airbag.
Since your vehicle is also
equipped with a front passen-ger ’s SRS frontal airbag, children
aged 12 and under should be
placed in the rear seat anyway
and should be properly re-
strained at all times.
. Never allow a child to kneel on
any passenger ’s seat facing the
side window or put their head,
arms and hands out of the win-
dow. In the event of an accident,
the force of the SRS curtain
airbag deployment could injure
the child seriously because his/
her head is close to the SRS
curtain airbag.
WARNING
. Do not attach accessories to the
door trim or near either SRS side
airbags and do not place objects
near the SRS side airbags. In the
event of the SRS side airbag
deployment, they could be pro-
pelled dangerously toward thevehicle ’s occupants and cause
injuries.
. Do not attach a hands-free micro-
phone or any other accessory to
a front pillar, a center pillar, a rear
pillar, the windshield, a side win-
dow, an assist grip, or any other
cabin surface that would be near
a deploying SRS curtain airbag. A hands-free microphone or
other accessory in such a loca-
tion could be propelled through
the cabin with great force by the
curtain airbag, or it could prevent
correct deployment of the curtain
airbag. In either case, the result
could be serious injuries.
. Do not hang coat hangers or
other hard or pointed objects on
the coat hooks. If such items
were hanging on the coat hooks
during deployment of the SRS
curtain airbags, they could cause
serious injuries by coming off the
coat hooks and being thrown
through the cabin or by prevent-
ing deployment of the curtainairbags.
Before hanging clothing on the
coat hooks, make sure there are
no sharp objects in the pockets.
Hang clothing directly on the
coat hooks without using hang-ers.
Seat, seatbelt and SRS airbags
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1-58Seat, seatbelt and SRS airbags
WARNING
Do not put any kind of cover or
clothes or other objects over either
front seatback and do not attach
labels or stickers to the front seat
surface on or near the SRS side
airbag. They could prevent proper
deployment of the SRS side airbag,
reducing protection available to the
front seat ’s occupant. !
OperationThe SRS side airbag and SRS curtain
airbag can function only when the ignition
switch is in the “ON ”position.
The driver ’s and front passenger ’s SRS
side airbags and SRS curtain airbags
deploy independently of each other since
each has its own impact sensor. There-
fore, they may not both deploy in the same
accident. Also, the SRS side airbag and
SRS curtain airbag deploys independently
of the driver ’s and front passenger ’s SRS
frontal airbags in the steering wheel and
instrument panel.
An impact sensor, which senses impact
force, is located in each of the left and
right center pillars and rear wheel houses.
Another impact sensor, which also senses impact force, is located under the rear
center seat. If one of the center pillar
impact sensors and the impact sensor that
is located under the rear center seat
together sense an impact force above a
predetermined level in a side collision, the
control module causes both the SRS side
airbag and curtain airbag on the impacted
side to inflate regardless of whether the
rear wheel house impact sensor on the
same side senses an impact. If one of the
rear wheel house impact sensors and the
impact sensor that is located under the
rear center seat together sense a suffi-
ciently strong impact force, the control
module causes only the SRS curtain
airbag on the impacted side to inflate.
After the deployment, the SRS side airbag
immediately starts to deflate. The time
required from detection of an impact to
deflation of an SRS side airbag after
deployment is shorter than the blink of
an eye.
The SRS curtain airbag remains inflated
for a while following deployment then
slowly deflates.
The SRS side airbag and SRS curtain
airbag deploy even when no one occupies
the seat on the side on which an impact isapplied.
When the SRS side airbag and SRS

curtain airbag deploy, a sudden, fairly loud
inflation noise will be heard and some
smoke will be released. These occur-
rences are a normal result of the deploy-
ment. This smoke does not indicate a fire
in the vehicle.
CAUTION
Do not touch the SRS side airbag
system components around the
front seat seatback with bare hands
right after deployment. Doing so can
cause burns because the compo-
nents can be very hot as a result ofdeployment.
After deployment, do not touch any
part of the SRS curtain airbag
system (from the front pillar to the
part of the roof side over the rear
seat). Doing so can cause burns
because the components can be
very hot as a result of deployment.
The SRS side airbag and SRS curtain
airbag are designed to deploy in the event
of an accident involving a moderate to
severe side impact collision. It is basically
not designed to deploy in a lesser side
impact. Also, it is basically not designed to
deploy in frontal or rear impacts because
SRS side airbag and SRS curtain airbag
deployment would not help the occupant in those situations.
Each SRS side airbag and SRS curtain
airbag are designed to function on a one-
time-only basis.
SRS side airbag and SRS curtain airbag
deployment depend on the level of force
experienced in the passenger compart-
ment during a side impact collision. That
level differs from one type of collision to
another, and it may have no bearing on
the visible damage done to the vehicleitself. !
Example of the type of accident in
which the SRS side airbag and SRS
curtain airbag will most likely de-
ploy.
A severe side impact near the front seat
activates the SRS side airbag and SRS curtain airbag.
Seat, seatbelt and SRS airbags
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1-60Seat, seatbelt and SRS airbags
! Examples of the types of accidents in which the SRS side airbag and SRS
curtain airbag are unlikely to deploy.
1) The vehicle is involved in an oblique
side-on impact.
2) The vehicle is involved in a side-on impact in an area outside the vicinity of
the passenger compartment.
3) The vehicle strikes a telephone pole or similar object.
4) The vehicle is involved in a side-on impact from a motorcycle.
5) The vehicle rolls onto its side or roof.
There are many types of collisions which
might not necessarily require SRS side
airbag and SRS curtain airbag deploy-
ment. In the event of accidents like those
illustrated, the SRS side airbag and SRS
curtain airbag may not deploy depending
on the level of accident forces involved.

!Examples of the types of accidents
in which the SRS side airbag and
SRS curtain airbag will basically not
deploy.
1) The vehicle is involved in frontal collision
with another vehicle (moving or station- ary). 2) The vehicle is struck from behind.
The SRS side airbag and SRS curtain
airbag are basically not designed to
deploy if the vehicle is involved in a frontal
collision or is struck from behind. Exam-
ples of such accidents are illustrated.
1) First impact
2) Second impact
A) SRS curtain airbag
B) SRS side airbag
In an accident where the vehicle is struck
from the side more than once, the SRS
side airbag and SRS curtain airbag deploy
only once on the first impact.
Example: In the case of a double side
impact collision, first with one vehicle and
immediately followed by another from the
same direction, once the SRS side airbag and SRS curtain airbag are activated on
the first impact, they will not be activated
on the second. &
SRS airbag system monitorsVehicle with SI-DRIVESeat, seatbelt and SRS airbags
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1-62Seat, seatbelt and SRS airbags
Vehicle without SI-DRIVE
A diagnostic system continually monitors
the readiness of the SRS airbag system
(including front seatbelt pretensioners)
while the vehicle is being driven. The
SRS airbag system warning light “AIR-
BAG ”will show normal system operation
by lighting for approximately 6 seconds
when the ignition switch is turned to the“ ON ”position.
The following components are monitored
by the indicator: . Front sub sensor (Right-hand side)
. Front sub sensor (Left-hand side)
. Airbag control module (including im-
pact sensors). Frontal airbag module (Driver ’s side)
. Frontal airbag module (Front passen- ger
’s side)
. Side airbag sensor (Center pillar right-
hand side). Side airbag sensor (Center pillar left-
hand side). Side airbag module (Driver ’s side)
. Side airbag module (Front passenger ’s
side). Curtain airbag sensor (Rear wheel
house right-hand side). Curtain airbag sensor (Rear wheel
house left-hand side). Curtain airbag module (Right side)
. Curtain airbag module (Left side)
. Satellite safing sensor (under the rear
center seat) . Seatbelt pretensioner (Driver ’s side)
. Seatbelt pretensioner (Front passen-
ger ’s side)
. Seatbelt buckle switch (Front passen-
ger ’s side)
. Front passenger ’s seatbelt tension
sensor . Front passenger ’s occupant detection
system weight sensor. Front passenger ’s occupant detection
control module. Front passenger ’s frontal airbag ON
and OFF indicator. All related wiring
WARNING
If the warning light exhibits any of
the following conditions, there may
be a malfunction in the seatbelt
pretensioners and/or SRS airbag
system. Immediately take your vehi-
cle to your nearest SUBARU dealer
to have the system checked. Unless
checked and properly repaired, the
seatbelt pretensioners and/or SRS
airbags will operate improperly (e.g.
SRS airbags may inflate in a very
minor collision or not inflate in a
severe collision), which may in-
crease the risk of injury. . Flashing or flickering of the warn-
ing light
. No illumination of the warning
light when the ignition switch is
first turned to the “ON ”position
. Continuous illumination of the
warning light
. Illumination of the warning light
while driving