warning SUBARU LEGACY 2017 6.G Service Manual

Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
WARNING
NEVER INSTALL A REARWARD FA-
CING CHILD SEAT IN THE FRONT
SEAT. DOING SO RISKS SERIOUS
INJURY OR DEATH TO THE CHILD
BY PLACING THE CHILD’S HEAD
TOO CLOSE TO THE SRS AIRBAG.
WARNING
Never allow a child to stand up or
kneel on the front passenger ’s seat.
The SRS airbag deploys with con-
siderable force and can injure or
even kill the child.
WARNING
Never hold a child on your lap or in
your arms. The SRS airbag deploys
with considerable force and can
injure or even kill the child.
WARNING
. Never allow a child to do the
following.
– Kneel on any passenger ’s
1-46

1) Front sub sensor (right-hand side)
2) Front sub sensor (left-hand side)
3) Frontal airbag module (driver’s side)
4) Front passenger ’s frontal airbag ON and
OFF indicator 5) SRS airbag system warning light
6) Frontal airbag module (front passenger
’s
side) 7) Airbag control module (including impact
sensor and rollover sensor)
Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
–CONTINUED –
1-49

1) Curtain airbag sensor (rear wheel houseleft-hand side)
2) Curtain airbag module (left-hand side)
3) Front door impact sensor (left-hand side)
4) Seatcushionairbagmodule(driver ’s
side)
5) Curtain airbag module (right-hand side)
6) Seat cushion airbag module (front pas- senger ’s side)
7) Side airbag sensor (center pillar left-hand side)
8) Seatbelt pretensioner (left-hand side)
9) Side airbag module (left-hand side)
10) Seatbelt buckle switch (left-hand side)
11) Seatbelt buckle switch (right-hand side)
12) Curtain airbag sensor (rear wheel house right-hand side)
13) Side airbag module (right-hand side)
14) Seatbelt pretensioner (right-hand side)
15) Side airbag sensor (center pillar right- hand side)
16) Front passenger ’s occupant detection
system sensor and control module
17) Front door impact sensor (right-hand side)
18) Front passenger ’s seatbelt tension sen-
sor& SUBARU advanced frontal
airbag system, SRS seat
cushion airbag, SRS side
airbag and SRS curtain air-
bag
Your vehicle is equipped with a SUBARU
advanced frontal airbag system that com-
plies with the new advanced frontal airbag
requirements in the amended Federal
Motor Vehicle Safety Standard (FMVSS)
No. 208.
The SUBARU advanced frontal airbag
system automatically determines the de-
ployment force of the driver ’s SRS frontal
airbag at the time of deployment as well as
whether or not to activate the front
passenger ’s SRS frontal airbag and, if
activated, the deployment force of the
SRS frontal airbag at the time of deploy-
ment.
Your vehicle has warning labels on the
driver ’s and front passenger ’s sun visors
beginning with the phrase “EVEN WITH
ADVANCED AIR BAGS ”and a tag
attached to the glove box lid beginning
with the phrase “Even with Advanced Air
Bags”. Make sure that you carefully read
the instructions on the warning labels and
tag.
Always wear your seatbelt. The SUBARU
advanced frontal airbag system is a supplemental restraint system and must
be used in combination with a seatbelt. All
occupants should wear a seatbelt or be
seated in an appropriate child restraint
system.
Your vehicle is equipped with a SUBARU
SRS curtain airbag system that complies
with the Federal Motor Vehicle Safety
Standard (FMVSS) No. 226.
For the locations of the SRS airbags, refer
to
“Components ”F 1-48.
In a moderate to severe frontal collision,
the following components deploy.
. SRS frontal airbag for driver
. SRS frontal airbag for front passenger
. SRS seat cushion airbags
. SRS curtain airbag*
1
*1: When an offset frontal collision that is severe
enough to deploy the front airbag occurs.
These components supplement the seat-
belts by reducing the impact to the
occupant ’s head and chest.
Inamoderatetoseveresideimpact
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 to the occupant ’s chest and
Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
–CONTINUED –1-51

Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
waist.
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 to the occupant’s
head.
NOTE
The SRS side airbag and seatbelt
pretensioner are not controlled by the
SUBARU advanced frontal airbag sys-
tem.
! Driver ’s SRS frontal airbag
The driver ’s SRS frontal airbag uses a
dual stage inflator. The inflator operates in
different ways depending on the severity
of impact.
Have the system inspected by your
SUBARU dealer immediately if the SRS
airbag system warning light illuminates.
! Front passenger ’s SRS frontal air-
bag
The front passenger ’s SRS frontal airbag
uses a dual stage inflator. The inflator
operates in different ways depending on
the severity of impact.
The total load on the seat is monitored by
the passenger ’s occupant detection sys- tem sensor located under the seat.
The system has another sensor that
monitors the tension of the front passen-
ger
’s seatbelt. Using the total seat load
and seatbelt tension data from the sen-
sors, the occupant detection system de-
termines whether the front passenger ’s
SRS frontal airbag should or should not be
inflated.
The occupant detection system may not
inflate the front passenger ’s SRS frontal
airbag even when the driver ’s SRS frontal
airbag deploys. This is normal.
CAUTION
Observe the following precautions.
Failure to do so may prevent the
SUBARU advanced frontal airbag
system from functioning correctly
or cause the system to fail.
. Do not apply any strong impact
to the front passenger ’sseat
such as by kicking.
. Do not let rear passengers rest
their feet between the front seat-
back and seat cushion.
. Do not spill liquid on the front
passenger ’s seat. If liquid is
spilled, wipe it off immediately.
. Do not remove or disassemble the front passenger
’s seat.
. Do not install any accessory
(such as an audio amplifier) other
than a genuine SUBARU acces-
sory under the front passenger ’s
seat.
. Do not place anything (shoes,
umbrella, etc.) under the front
passenger ’s seat.
. Do not use the front passenger ’s
seat with the head restraint re-
moved.
. Do not leave any articles on the
front passenger ’s seat or the
seatbelt tongue and buckle en-
gaged when you leave your ve-
hicle.
. Do not place a magnet near the
seatbelt buckle and the seatbelt
retractor.
. Do not use front seats with their
backward-forward position and
seatback not being locked into
place securely. If any of them are
not locked securely, adjust them
again. For adjusting procedure,
refer to “Manual seat ”F1-4
(models equipped with manual
seats only).
If the seatbelt buckle switch and/or front
1-52

passenger’s occupant detection system
have failed, the SRS airbag system
warning light will illuminate. Have the
system inspected by your SUBARU deal-
er immediately if the SRS airbag system
warning light illuminates.
If your vehicle has sustained impact, this
may affect the proper function of the
SUBARU advanced frontal airbag system.
Have your vehicle inspected at your
SUBARU dealer. Do not let anyone use
the front passenger ’s seat while you are
driving the vehicle to your SUBARU deal-
er.
! Passenger ’s frontal airbag ON and
OFF indicators
Refer to “Front passenger ’s frontal airbag
ON and OFF indicators” F3-15.
! Occupant detection system
The occupant detection system sensor is
installed under the seat and monitors the
total load on the front passenger ’s seat.
The system has another sensor that
monitors the tension of the front passen-
ger ’s seatbelt. Using the total seat load
and seatbelt tension data from the sen-
sors, the occupant detection system de-
termines whether the following airbags
should be deployed or not.
. Front passenger ’s SRS frontal airbag
. Front passenger ’s SRS seat cushion airbag
ON /: Front passenger
’s frontal airbag ON
indicator
/: Front passenger ’s frontal airbag OFF
indicator
If the front passenger ’s frontal airbag ON
and OFF indicators do not work properly
even when the front passenger ’s seat is
dry, do not allow anyone to sit on the front
passenger ’s seat and have the occupant
detection system checked by your
SUBARU dealer.
! Conditions in which front passen-
ger’s SRS frontal airbag is not
activated
The front passenger ’s SRS frontal airbag
will not be activated when any of the
following conditions are met regarding the front passenger
’s seat:
. The seat is empty.
. The seat is equipped with an appro-
priate child restraint system and an infant
is restrained in it. (See WARNING that
follows.)
. The front passenger ’s occupant detec-
tion system is malfunctioning.
WARNING
NEVER INSTALL A REARWARD FA-
CING CHILD SEAT IN THE FRONT
PASSENGER ’S SEAT EVEN IF THE
FRONT PASSENGER ’S SRS FRON-
TAL AIRBAG IS DEACTIVATED. Be
sure to install it in the REAR seat in
a correct manner. Also, it is strongly
recommended that any forward fa-
cing child seat or booster seat be
installed in the REAR seat, and that
even children who have outgrown a
child restraint system be also
seated in the REAR seat. This is
because children sitting in the front
passenger ’s seat may be killed or
severely injured should the front
passenger ’s SRS frontal airbag de-
ploy. REAR seats are the safest
place for children.
Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
–CONTINUED –1-53

Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
!Examples of the types of acci-
dents in which the driver ’s/dri-
ver ’s and front passenger ’s SRS
frontal airbag(s) is not designed
to deploy in most cases
The driver ’s and front passenger ’s SRS frontal airbags are designed not to deploy
in most cases 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 first
impact.
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.
WARNING
If the vehicle is damaged in an
accident but the SRS frontal airbag
does not deploy, contact your
SUBARU dealer as soon as possi-
ble.
1-60

!SRS seat cushion airbag operation
1) Driver ’s side
2) Passenger ’s side
WARNING
The SRS seat cushion airbag is
designed not to deploy when the
seatbelt for the corresponding seat
is not fastened. For safety, all per-
sons in the vehicle should fasten
their seatbelts.
The SRS seat cushion airbags are de-
signed to deploy simultaneously when the
SRS frontal airbags deploy. For details
about the operating conditions, refer to
“SUBARU advanced frontal airbag opera-
tion ”F 1-57.
The front passenger ’s SRS seat cushion
airbag is designed not to deploy in either
of the following conditions.
. The front passenger ’s seatbelt is not
fastened (even when the front passen-
ger ’s frontal airbag ON indicator illumi-
nates while the OFF indicator remains off).
. The front passenger ’s frontal airbag
ON indicator is off while the OFF indicator
illuminates.
NOTE
When the front passenger ’s SRS fron-
tal airbag is deactivated by the occu-
pant detection system, the front pas-
senger ’s SRS seat cushion airbag is
also deactivated.
! SRS side airbag and SRS curtain
airbag operation
The following airbags deploy indepen-
dently of each other because each has
its own impact sensor.
.Driver ’s SRS side airbag
. Front passenger ’s SRS side airbag
. SRS curtain airbag (right-hand side)
. SRS curtain airbag (left-hand side)
Therefore, they may not both deploy in the
same accident. Also, the SRS side airbag
Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
–CONTINUED –1-61

Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
!Examples of the types of acci-
dents in which the SRS side
airbag and SRS curtain airbag is
not designed to deploy in most
cases
1) The vehicle is involved in frontal collision
with another vehicle (moving or station- ary).
(Only the SRS side airbag is
designed not to deploy in most cases)
2) The vehicle is struck from behind.
3) The vehicle pitches end over end.
In the event of accidents like those
illustrated, the SRS side airbag and SRS
curtain airbag are not designed to deploy
in most cases.
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 monitors
SRS airbag system warning light
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 will show
normal system operation by illuminating
for approximately 6 seconds when the
ignition switch is turned to the “ON ”
position.
The following components are monitored
1-68

by the indicator.
.Front sub sensor
– Right-hand side
– Left-hand side
. Airbag control module (including im-
pact sensors and rollover sensors)
. Frontal airbag module
– Driver ’s side
– Front passenger ’s side
. Center pillar impact sensor
– Right-hand side
– Left-hand side
. Front door impact sensor
– Right-hand side
– Left-hand side
. Side airbag module
– Driver ’s side
– Front passenger ’s side
. Rear wheel house impact sensor
– Right-hand side
– Left-hand side
. Curtain airbag module
– Right-hand side
– Left-hand side
. Seat cushion airbag module
– Driver ’s side
– Front passenger ’s side
. Seatbelt pretensioner
– Driver ’s side
– Front passenger ’s side .
Seatbelt buckle switch
– Driver ’s side
– Front passenger ’s side
. Front passenger ’s occupant detection
system sensor and control module
. Front passenger ’s seatbelt tension
sensor
. 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.
.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
Immediatelytakeyourvehicleto
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.
&
SRS airbag system servicing
WARNING
. When discarding an airbag mod-
ule or scrapping the entire vehi-
cle damaged by a collision, con-
sult your SUBARU dealer.
. The SRS airbag has no user-
serviceable parts. Do not use
electrical test equipment on any
circuit related to the SRS airbag
system. For required servicing of
the SRS airbag, consult your
nearest SUBARU dealer. Tamper-
ing with or disconnecting the
system ’s wiring could result in
accidental inflation of the SRS
airbag or could make the system
inoperative, which may result in
serious injury.
Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
–CONTINUED –1-69

Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
CAUTION
If you need service or repair in areas
indicated in the following list, have
the work performed by an author-
ized SUBARU dealer. The SRS air-
bag control module, impact sensors
and airbag modules are stored in
these areas.
.Under the center console
. Inside each front fender
. Steering wheel and column and
nearby areas
. Top of the dashboard on front
passenger ’ssideandnearby
areas
. Each front seat and nearby area
. Inside each center pillar
. Inside each front door
. In each roof side (from the front
pillar to a point over the rear seat)
. Between the rear seat cushion
and rear wheel house on each
side
. Under the rear center seat
In the event that the SRS airbag is
deployed, replacement of the system
should be performed only by an author-
ized SUBARU dealer. When the compo- nents of the SRS airbag system are
replaced, use only genuine SUBARU
parts.
NOTE
In the following cases, contact your
SUBARU dealer as soon as possible.
.
The front part of the vehicle was
involved in an accident in which only
the driver ’s SRS frontal airbag or both
driver ’s and front passenger ’sSRS
frontal airbags did not deploy.
. The pad of the steering wheel, the
cover over the front passenger ’s SRS
frontal airbag, or either roof side (from
the front pillar to a point over the rear
seat) is scratched, cracked, or other-
wise damaged.
. The center pillar, front door, rear
wheel house or rear sub frame, or an
area near these parts, was involved in
an accident in which the SRS side
airbag and SRS curtain airbag did not
deploy.
. The fabric or leather of either front
seatback and seat cushion is cut,
frayed, or otherwise damaged.
. The rear part of the vehicle was
involved in an accident.
& Precautions against vehicle
modification
WARNING
. To avoid accidental activation of
the system or rendering the sys-
tem inoperative, which may re-
sult in serious injury, no modifi-
cations should be made to any
components or wiring of the SRS
airbag system.
This includes the following mod-
ifications.
– Installation of custom steering
wheels
– Attachment of additional trim
materials to the dashboard
– Installation of custom seats
– Replacement of seat fabric or
leather
– Installation of additional fabric
or leather on the front seat
– Attachment of a hands-free
microphone or any other ac-
cessory to a front pillar, a
center pillar, a rear pillar, the
windshield, a side window, an
assist grip, or any other cabin
surface that would be near a
1-70