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北米Model "A1720BE-A" EDITED: 2018/ 3/ 9

WARNING

NEVER INSTALL A 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

Observe the following instructions.

Never allow a child to stand up or

kneel on the front passenger’s
seat.

Never hold a child on your lap or

in your arms.

Since the SRS airbag deploys with
considerable force, it can injure or
even kill a child.

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WARNING

Never allow a child to do the

following.

– Kneel on any passenger’s seat

facing the side window

– Wrap his/her arms around the

front seat seatback

– Put his/her head, arms or

other parts of the body out of
the window

In the event of an accident, the

force of SRS side airbag and/or
SRS curtain airbag deployment
could injure the child seriously
because his/her head, arms or
other parts of the body are too
close to the SRS side airbag and/
or SRS curtain airbag.

Since your vehicle is also
equipped with a front passen-
ger’s SRS frontal airbag, children
should be placed in the rear seat
anyway and should be properly
restrained at all times.

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Components

SRS frontal airbag

SRS side airbag

SRS curtain airbag

SRS knee airbag

The SRS airbags are stowed in the
following locations.

Driver’s SRS frontal airbag: in the center
portion of the steering wheel

Front passenger’s SRS frontal airbag:
near the top of the dashboard under an
“SRS AIRBAG” mark

SRS side airbag: in the door side of each
front seat seatback which bears an “SRS
AIRBAG” label

SRS curtain airbag: in the roof side
(between the front pillar and a point behind
the rear quarter glass)
An “SRS AIRBAG” mark is located at the
top of each center pillar and rear pillar.

SRS knee airbag: under the steering
column

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Airbag control module (including impact
sensor and rollover sensor)

Frontal airbag module (driver’s side)

Frontal airbag module (front passenger’s
side)

Front sub sensor (left-hand side)

Front sub sensor (right-hand side)

Side airbag module (driver’s side)

Side airbag module (front passenger’s
side)

Side airbag sensor (center pillar left-hand
side)

Side airbag sensor (center pillar right-
hand side)

10) Airbag wiring

11) Seatbelt pretensioner (driver’s side)
12) Seatbelt pretensioner (front passenger’s

side)

13) Curtain airbag sensor (rear wheel house

right-hand side)

14) Curtain airbag sensor (rear wheel house

left-hand side)

15) Curtain airbag module (right-hand side)
16) Curtain airbag module (left-hand side)
17) Seatbelt buckle switch (front passenger’s

side)

18) Knee airbag module (driver’s side)
19) Front passenger’s occupant detection

system sensor

20) Front passenger’s occupant detection

control module

21) Front passenger’s frontal airbag ON and

OFF indicator

22) SRS airbag system warning light
23) Satellite safing sensor (under the rear

center seat)

24) Front door impact sensor (left-hand side)
25) Front door impact sensor (right-hand

side)

26) Lap belt pretensioner (front passenger’s

side)

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SUBARU advanced frontal
airbag system

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 deployment.
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 at-
tached 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.
For the locations of the SRS airbags, refer
to “Components” F1-41.

In a moderate to severe frontal collision,
the following components deploy.
.

SRS frontal airbag for driver

SRS frontal airbag for front passenger

SRS knee airbag for driver

SRS curtain airbag

*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, chest and knees.

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.

SRS airbag system warning light

Have the system inspected by your
SUBARU dealer immediately if the SRS
airbag system warning light illuminates.

NOTE

The driver’s SRS side airbag and SRS
curtain airbag are not controlled by the
SUBARU advanced frontal airbag sys-
tem.

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 occupant detection system sensor is
installed under the seat upholstery and

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monitors the physique and posture of the
front passenger. Using this information,
the occupant detection system determines
whether the front passenger’s SRS frontal
airbag should be deployed or not.
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. In this
case, although the front passenger’s SRS
frontal airbag does not operate, the front
passenger’s seatbelt pretensioner oper-
ates with the driver’s seatbelt preten-
sioner. For details about the seatbelt
pretensioner, refer to “Front seatbelt pre-
tensioners” F1-17.

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’s seat 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 vehi-
cle.

Do not put sharp object(s) on the

seat or pierce the seat uphols-
tery.

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).

SRS airbag system warning light

If the seatbelt buckle switch and/or front
passenger’s occupant detection system
have failed, the SRS airbag system warn-
ing light will illuminate. Have the system
inspected by your SUBARU dealer imme-
diately 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

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driving the vehicle to your SUBARU deal-
er.

NOTE

The front passenger’s SRS side airbag
and SRS curtain airbag are not con-
trolled by the SUBARU advanced fron-
tal airbag system.

Passenger’s frontal airbag ON and
OFF indicators

Refer to “Front passenger’s frontal airbag
ON and OFF indicators” F3-16.

Occupant detection system

The occupant detection system sensor is
installed under the seat upholstery and
monitors the physique and posture of the
front passenger. Using this information,
the occupant detection system determines
whether the front passenger’s SRS frontal
airbag should be deployed or not.

ON /

: Front passenger’s frontal airbag ON

indicator

: Front passenger’s frontal airbag OFF

indicator

If the front passenger’s seat cushion is
wet, this may adversely affect the ability of
the system to determine deployment. If the
seat cushion is wet, the front passenger
should stop sitting on the front passen-
ger’s seat. Wipe off liquid from the seat
immediately, let the seat dry naturally and
then check the SRS airbag system warn-
ing light as follows.
.

If the SRS airbag system warning light

illuminates, keep the seat dry until the
warning light turns off. If the SRS airbag
system warning light stays on even when
the seat has dried, do not allow anyone to
sit on the front passenger’s seat and have

the system checked by your SUBARU
dealer.
.

If the SRS airbag system warning light

does not illuminate, check that the front
passenger’s frontal airbag ON and OFF
indicators work properly. If the indicators
do not work properly, do not allow anyone
to sit on the front passenger’s seat and
have the system checked by your
SUBARU dealer.

Also, if luggage or electronic devices are
placed on the front passenger’s seat, this
may adversely affect the ability of the
system to determine deployment. This
may prevent the front passenger’s frontal
airbag ON and OFF indicators from work-
ing properly. Check that the indicators
work properly.
When the OFF indicator turns off and the
ON indicator illuminates, the front passen-
ger’s frontal airbag may deploy during a
collision. Remove luggage and electronic
devices from the front passenger’s seat.

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CAUTION

Electronic devices

may affect the

occupant detection system, espe-
cially under either of the following
conditions.

when placed on the front passen-

ger’s seat while connected to the
accessory power outlet

when used by the front passen-

ger

*Example: cell phones, laptops, por-
table music players, or electronic
games

If either of the following situations
occurs when using an electronic
device in the vehicle, at first try to
relocate that device to avoid it
creating any interference.

The SRS airbag system warning

light illuminates.

The front passenger’s frontal air-

bag ON and OFF indicators oper-
ate erratically.

If the interference remains, stop
using the device in the vehicle.

NOTE

This device complies with Part 18 of the
FCC Rules. This device may cause
interference. If this device causes inter-
ference, consult the nearest SUBARU
dealer. Also, for maintenance of the
system, consult the nearest SUBARU
dealer. This product may cause inter-
ference to radio equipment and should
not be installed near maritime safety
communications equipment or other
critical navigation or communication
equipment operating between 0.45-30
MHz.

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 CHILD SEAT IN
THE FRONT PASSENGER’S SEAT
EVEN IF THE FRONT PASSENGER’S
SRS FRONTAL AIRBAG IS DEACTI-
VATED. Be sure to install it in the
REAR seat in a correct manner. Also,
it is strongly recommended that any
forward facing 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

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passenger’s SRS frontal airbag de-
ploy. REAR seats are the safest
place for children.

CAUTION

When the front passenger’s seat is
occupied by an infant in an appro-
priate child restraint system, ob-
serve the following precautions.
Failure to do so may interfere with
the proper operation of the occupant
detection system, activating the
front passenger’s SRS frontal airbag
even though that seat is occupied by
the infant in the child restraint
system.

Do not place any article (includ-

ing electronic devices) on the
seat other than the infant in the
child restraint system.

Do not place more than one infant

in the child restraint system.

If the front passenger’s frontal
airbag ON indicator illuminates
and the OFF indicator turns off
even when an infant or a small
child is in a child restraint sys-
tem (including booster seat)

1. Turn the ignition switch to the “LOCK”/
“OFF” position.
2. Remove the child restraint system from
the seat.
3. By referring to the child restraint
manufacturer’s recommendations as well
as the child restraint system installation
procedures in “Child restraint systems”
F1-21, correctly install the child restraint
system.
4. Turn the ignition switch to the “ON”
position and make sure that the front
passenger’s frontal airbag ON indicator
turns off and the OFF indicator illuminates.

If still the ON indicator remains illuminated
while the OFF indicator turns off, take the
following actions.
.

Ensure that no article is placed on the

seat other than the child restraint system
and the child occupant.
.

Ensure that the backward-forward po-

sition and seatback of front passenger’s
seat are locked into place securely by
moving the seat back and forth.

If the ON indicator still remains illuminated
while the OFF indicator turns off after
taking relevant corrective actions de-
scribed above, relocate the child restraint
system to the rear seat and immediately
contact your SUBARU dealer for an
inspection.

NOTE

When a child who has outgrown a child
restraint system or a small adult is
seated in the front passenger’s seat,
the SUBARU advanced frontal airbag
system may or may not activate the
front passenger’s SRS frontal airbag
depending on the occupant’s seating
posture. Children should always wear a
seatbelt when sitting in the seat irre-
spective of whether the airbag is deac-
tivated or activated. If the front passen-
ger’s SRS frontal airbag is activated
(the ON indicator remains illuminated
while the OFF indicator turns off),
ensure that no article is placed on the
seat other than the occupant.
If the ON indicator still remains illumi-
nated while the OFF indicator turns off
despite the fact that the actions noted
above have been taken, seat the child/
small adult in the rear seat and imme-
diately contact your SUBARU dealer for
an inspection. Even if the system has

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passed the dealer inspection, it is
recommended that on subsequent trips
the child/small adult always take the
rear seat.

Children who have outgrown a child
restraint system should always wear the
seatbelt irrespective of whether the airbag
is deactivated or activated.

Conditions in which front passen-
ger’s SRS frontal airbag is activated

The front passenger’s SRS frontal airbag
will be activated for deployment upon
impact when any of the following condi-
tions are met regarding the front passen-
ger’s seat.
.

When the seat is occupied by an adult.

When certain items (e.g. jug of water)

are placed on the seat.

If the passenger’s frontal airbag
OFF indicator illuminates and the
ON indicator turns off even when
the front passenger’s seat is
occupied by an adult

This can be caused by the adult incorrectly
sitting in the front passenger’s seat.
1. Turn the ignition switch to the “LOCK”/
“OFF” position.
2. Ask the front passenger to set the
seatback to the upright position, sit up
straight in the center of the seat cushion,
correctly fasten the seatbelt, position his/
her legs out forward, and adjust the seat to
the rearmost position.
3. Turn the ignition switch to the “ON”
position.

If the OFF indicator remains illuminated
while the ON indicator remains off, take the
following actions.
1. Turn the ignition switch to the “LOCK”/
“OFF” position.
2. Make sure that the front passenger
does not use a blanket, seat cushion, seat
cover, seat heater or massager, etc.
3. If wearing excessive layers of clothing,
the front passenger should remove any
unnecessary items before sitting in the
front passenger’s seat, or should sit in a
rear seat.
4. Turn the ignition switch to the “ON”

position and wait 6 seconds to allow the
system to complete self-checking. Follow-
ing the system check, both indicators turn
off for 2 seconds. Now, the ON indicator
should illuminate while the OFF indicator
remains off.

If the OFF indicator still remains illumi-
nated while the ON indicator remains off,
ask the occupant to move to the rear seat
and immediately contact your SUBARU
dealer for an inspection.

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Operation

Driver’s side

Passenger’s side

SRS AIRBAGs deploy as soon as a collision occurs.

After deployment, SRS AIRBAGs start to deflate immediately so that the driver’s vision is not
obstructed.

The SRS airbags can function only when
the ignition switch is in the “ON” position.

The SUBARU advanced frontal airbag
system is designed to determine the
activation or deactivation condition of the
front passenger’s SRS frontal airbag de-
pending on the characteristic of item(s) or
person on the front passenger’s seat
monitored by the front passenger’s occu-
pant detection system sensor. For this
reason, only the driver’s SRS frontal
airbag may deploy in the event of a
collision, but this does not mean failure of
the system.

If the following sensors detect a predeter-
mined amount of force during a frontal
collision, the control module sends signals
to the airbag module(s) (only driver’s
module or both driver’s and front passen-
ger’s modules) instructing the module(s) to
inflate the SRS frontal airbag(s).
.

the front sub sensors

the impact sensors in the airbag control

module

On the driver’s side, the SRS knee airbag
also inflates with the SRS frontal airbag.

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The driver’s and front passenger’s SRS
frontal airbags use dual stage inflators.
The two inflators of each airbag are
triggered either sequentially or simulta-
neously, depending on the severity of
impact, in the case of the driver’s SRS
frontal airbag and depending on the
severity of impact and the characteristic
of item(s) or person on the seat in the case
of the front passenger’s SRS frontal air-
bag.

After deployment

After deployment, the SRS airbag imme-
diately starts to deflate so that the driver’s
vision is not obstructed and the driver’s
ability to maintain control of the vehicle is
not impaired. The time required from
detecting impact to the deflation of the
SRS airbag after deployment is shorter
than the blink of an eye.

Both when only the driver’s SRS frontal
airbag deploys and the driver’s and front
passenger’s SRS frontal airbags deploy,
the driver’s and front passenger’s seatbelt
pretensioners operate at the same time.

Although it is highly unlikely that the SRS
airbag would activate in a non-accident
situation, should it occur, the SRS airbag
will deflate quickly, not obscuring vision
and will not interfere with the driver’s ability
to maintain control of the vehicle.

When the SRS airbag deploys, a sudden,
fairly loud inflation noise will be heard and
some smoke will be released. These
occurrences are a normal result of the
deployment. This smoke does not indicate
a fire in the vehicle.

CAUTION

Do not touch the SRS airbag system
components around the steering
wheel and dashboard with bare
hands right after deployment. Doing
so can cause burns because the
components can be very hot as a
result of deployment.

Example of the type of accident

The driver’s SRS frontal airbag and front
passenger’s SRS frontal airbag are de-
signed as follows.
.

to deploy in the event of an accident

involving a moderate to severe frontal
collision
.

to function on a one-time-only basis

The driver’s SRS frontal airbag and front
passenger’s SRS frontal airbag are not
designed as follows.
.

to deploy in most lesser frontal im-

pacts

to deploy in most side or rear impacts or

in most rollover accidents

*1: Because the necessary protection can be
achieved by the seatbelt alone.

*2: Because deployment of only the driver’s
SRS frontal airbag or both the driver’s and front
passenger’s SRS frontal airbags would not
protect the occupant in those situations.

SRS airbag deployment depends on the
level of force experienced in the passen-
ger compartment during a collision. That
level differs from one type of collision to
another, and it may have no bearing on the
visible damage done to the vehicle itself.

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Example of accident in which the
driver’s/driver’s and front pas-
senger’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 described
above.

Examples of the types of acci-
dents in which it is possible that
the driver’s/driver’s and front
passenger’s SRS frontal
airbag(s) will deploy

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 undercar-
riage 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).

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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

The vehicle strikes an object, such as a
telephone pole or sign pole.

The vehicle slides under the load bed of a
truck.

The vehicle sustains an oblique offset
frontal impact.

The vehicle sustains an offset frontal
collision.

The vehicle strikes an object that can
move or deform, such as a parked
vehicle.

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). In the event of
accidents like those illustrated, the dri-
ver’s/driver’s and front passenger’s SRS
frontal airbag(s) may not deploy depend-
ing on the level of accident forces involved.

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Examples of the types of acci-
dents in which the driver’s/dri-
ver’s and front passenger’s SRS
frontal airbag(s) are not de-
signed to deploy in most cases

The driver’s and front passenger’s SRS

frontal airbags are not designed to deploy
in most of the following cases.
.

If the vehicle is struck from the side or

from behind
.

If the vehicle rolls onto its side or roof

If the vehicle is involved in a low-speed

frontal collision

First impact

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.

SRS side airbag and SRS
curtain airbag

SRS side 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.

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SRS curtain airbag

Your vehicle is equipped with a SUBARU
SRS curtain airbag system that complies
with the Federal Motor Vehicle Safety
Standard (FMVSS) No. 226.

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 win-
dow and supplements the seatbelt by
reducing the impact on the occupant’s
head.
In a rollover, SRS curtain airbags on both
sides of the vehicle deploy between the
occupant and the side window and supple-
ment the seatbelt by reducing the impact to
the occupant’s head.
In an offset frontal collision, SRS curtain
airbags on both sides of the vehicle deploy
between the occupant and the side win-
dow and supplement the seatbelt by
reducing the impact to the occupant’s
head.

Operation

The SRS side airbag and SRS curtain
airbag can function only when the ignition
switch is in the “ON” position.

The following airbags deploy indepen-
dently of each other since 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
and SRS curtain airbag deploys indepen-
dently 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 following
locations.
.

In the left and right front doors

In the left and right center pillars

In the left and right rear wheel houses

Under the rear center seat

On both sides of the radiator panel

(frontal impact sensor)

The rollover sensor and frontal impact
sensor are located inside the airbag

control module, which is located under
the center of the instrument panel.

Seat, seatbelt and SRS airbags/SRS airbag (Supplemental Restraint System airbag)

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Subaru WRX STI (2019 year). Manual - part 5