warning SUBARU BRZ 2022 Service Manual

SRS Airbag (Supplemental Restraint System Airbag)
70SRS airbag system warning lightHave the system inspected by your
SUBARU dealer immediately if the SRS
airbag system warning light illuminates.
▼
Front passenger’s SRS frontal
airbag
The front passenger’s SRS frontal airbag
uses a dual stage inflator. The inflator
operates in different ways depending on
the severity of impact.
1) Occupant detection sensorsThe occupant detection system sensors
are installed between the seat and seat
rails, and monitor 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 no t operate, the front
passenger’s seatbelt pretensioner oper-
ates with the driver’s seatbelt
pretensioner. For details about the seatbelt pretensioner, refer to "Seatbelt
Pretensioners"
P44.
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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
seatback 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 place any objects (books,
etc.) around the front
passenger’s seat.
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SRS Airbag (Supplemental Restraint System Airbag)
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Seat, Seatbelt and SRS Airbags1
– CONTINUED –
SRS airbag system warning light
If the seatbelt buckle switch and/or front
passenger’s occupant detection system
have failed, the SRS airbag system
warning light will illuminate. Have the
system inspected by your SUBARU
dealer 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 use the front
passenger’s seat while driving the vehicle
to your SUBARU dealer.NOTEThe 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
: Front passenger’s frontal airbag ON indicator
: Front passenger’s frontal airbag OFF indicator
Refer to "Front Passenger’s Frontal
Airbag ON and OFF Indicators" P135.
 Do not use the front passenger’s
seat with the head restraint
removed.Do not leave any articles on the
front passenger’s seat or the
seatbelt tongue and buckle
engaged when you leave your
vehicle.Do not put sharp object(s) on the
seat or pierce the seat uphol-
stery.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" 
P33
(models equipped with manual
seats only).
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SRS Airbag (Supplemental Restraint System Airbag)
72▼
Occupant detection system1) Occupant detection sensorsThe occupant detection system sensors
are installed between the seat and seat
rails, and monitor the physique and
posture of the front passenger. Using this
information, the occupant detection
system determines whether the frontpassenger’s SRS frontal airbag should be
deployed or not.
SRS airbag system warning lightIf the front passenger’s seat cushion is
wet, this may adversely affect the ability of
the system to determine deployment.
Wipe off liquid from the seat, let the seat
dry naturally and then check the SRS
airbag system warning light.
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WARNING
Do not kick the front passenger seat
or subject it to severe impact. Oth-
erwise, the SRS airbag system
warning light may illuminate to indi-
cate a malfunction of the front pas-
senger occupant detection system.
In this case, contact your SUBARU
dealer immediately.
CAUTION
Electrical devices, such as cell
phones, laptops, portable music
players, or electronic games, espe-
cially when connected to the acces-
sory power outlet and placed on the
front passenger’s seat or used by
the person sitting in the front pas-
senger’s seat, may affect the opera-
tion of the occupant detection
system. If either of the following sit-
uations occurs when using an elec-
tronic 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
airbag ON and OFF indicators
operate erratically.
If the device continues to cause
interference, the use of that device
in the vehicle should be discontin-
ued.
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SRS Airbag (Supplemental Restraint System Airbag)
73
Seat, Seatbelt and SRS Airbags1
– CONTINUED –
: Front passenger’s frontal airbag ONindicator
: 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. : Front passenger’s frontal airbag ON
indicator
: Front passenger’s frontal airbag OFF indicator
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
working properly. Check that the indica-
tors work properly.
When the OFF indicator turns off and the
ON indicator illuminates, the front
passenger’s frontal airbag may deploy
during a collision. Remove luggage and
electronic devices from the front
passenger’s seat. ▼
Conditions in which front
passenger’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 restrain t system and an infant
or a child is restrained in it. (See
WARNING that follows.)
 The front passenger’s occupant detec-
tion system is malfunctioning.
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SRS Airbag (Supplemental Restraint System Airbag)
74
: Front passenger’s frontal airbag ONindicator
: Front passenger’s frontal airbag OFF indicator
If you think that the Front passenger's
frontal airbag ON/OFF indicator is incor-
rect, take the following actions.
 Ensure that no article is placed on the
seat other than the occupant.
 Ensure that the backward-forward
position and seatback of front passenger’s
seat are locked into place securely by moving the seat back and forth. (Models
equipped with manual seats only)
If the ON indicator still remains illuminated
while the OFF indicator turns off after
taking relevant corrective actions
described above, immediately contact
your SUBARU dealer for an inspection.
Even if the system has
passed the dealer
inspection, it is recommended that on
subsequent trips the small adult always
take the rear seat.
NOTEWhen a small adult is seated in the
front passenger’s seat, the SUBARU
advanced frontal airbag system may or
may not activate th e front passenger’s
SRS frontal airbag depending on the
occupant’s seating posture. If the OFF
indicator remains illuminated while the
ON indicator turns off when a small
adult is seated in the front passenger's
seat, see next section “Conditions in
which front passenger's SRS frontal
airbag is activated.”
▼ Conditions in which front
passenger’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-
WARNING
NEVER INSTALL A CHILD
RESTRAINT SYSTEM 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 sit-
ting in the front passenger’s seat
may be killed or severely injured
should the front passenger’s SRS
frontal airbag deploy. REAR seats
are the safest place for children.
CAUTION
Observe the following precautions
as it increase the load on the front
passenger's seat and not work
properly. Do not install any accessory such
as a table or TV onto the
seatback.
Do not allow the rear seat occu-
pant to place his/her hands or
legs on the front passenger's
seatback, or allow him/her to pull
the seatback.
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SRS Airbag (Supplemental Restraint System Airbag)
87
Seat, Seatbelt and SRS Airbags1
– CONTINUED –
▽Examples of the types of acci -
dents in which the SRS side
airbag and SRS curtain airbag
are not designed to deploy in
most cases1) The vehicle is involved in frontal colli- sion with another vehicle (moving or stationary).
2) The vehicle is struck from behind.
3) The vehicle pitches end over end.
In the event of accidents like those illus-
trated, 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 airbagIn 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 MonitorsSRS airbag system warning lightA diagnostic system continually monitors
the readiness of the SRS airbag system
(including seatbelt pretensioners) with the
ignition switch in the “ON” position. The
SRS airbag system warn
ing light will show
normal system operation by illuminating
for approximately 6 seconds when the
ignition switch is turned to the “ON” posi-
tion.
The following components are monitored
by the indicator:
 Front impact sensor
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A
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SRS Airbag (Supplemental Restraint System Airbag)
88
- Right-hand side
- Left-hand side
 Airbag control module (including
impact sensor and rollover sensor)
 Frontal airbag module
- Driver’s side
- Front passenger’s side
 Knee airbag module
- Driver’s side
 Side impact sensor
- Center pillar left-hand side
- Center pillar right-hand side
- Forward of rear wheel house left-
hand side
- Forward of rear wheel house right-
hand side
- Door left-hand side
- Door right-hand side
 Side airbag module
- Driver’s side
- Front passenger’s side
 Curtain airbag module
- Right-hand side
- Left-hand side
 Seatbelt pretensioner and adaptive
force limiter
- Driver’s side
- Front passenger’s side
 Seatbelt buckle switch
- Front passenger’s side
 Front passenger’s occupant detection
system sensor 
Front passenger’s frontal airbag ON
and OFF indicator
 All related wiring
■
SRS Airbag System
Servicing
WARNING
If the warning light exhibits any of
the following conditions, immedi-
ately stop the vehicle in a safe
place, and consult a SUBARU
dealer. Unless a technician checks
and repairs the system as needed,
the seatbelt pretensioners and/or
the SRS airbag will not operate
properly in the event of a collision,
which may result in injury.Flashing or flickering of the
warning 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
WARNING
When discarding an airbag
module or scrapping the entire
vehicle damaged by a collision,
consult 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.
Tampering 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.
CAUTION
If you need service or repair in
areas indicated in the following list,
have the work performed by an
authorized SUBARU dealer. The
SRS airbag control module, impact
sensors and airbag modules are
stored in these areas.
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SRS Airbag (Supplemental Restraint System Airbag)
89
Seat, Seatbelt and SRS Airbags1
– CONTINUED –
In the event that the SRS airbag is
deployed, replacement of the system
should be performed only by an autho-
rized SUBARU dealer. When the
components of the SRS airbag system
are replaced, use only genuine
SUBARU parts.
NOTEIn 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 fron tal airbag or both
driver’s and front passenger’s SRS
frontal airbags did not deploy.
 The pad of the steering wheel, the
cover over the front passenger’s SRS
frontal airbag, or ei ther roof side (from
the front pillar to a point over the rear
seat) is scratched, cracked, or other-
wise damaged.
 The center pillar, 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 is cut, frayed, or otherwise
damaged.
 The rear part of the vehicle was
involved in an accident in which no
SRS airbag was deployed.
■
Precautions against Vehicle
Modification
 Under the center of the instru-
ment panelOn both the right and left sides at
the front of the vehicleSteering wheel and column and
nearby areasBottom of the steering column
and nearby areasTop of the dashboard on front
passenger’s side and nearby
areasEach front seat and nearby areaInside each center pillarInside each 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
WARNING
To avoid accidental activation of
the system or rendering the
system inoperative, which may
result in serious injury, no modifi-
cations should be made to any
components or wiring of the SRS
airbag system.
This includes following modifica-
tions.
- Installation of custom steering
wheels- Attachment of additional trimmaterials to the dashboard- Installation of custom seats- Replacement of seat fabric or
leather- Installation of additional fabricor leather on the front seat- Attachment of a hands-freemicrophone or any other
accessory 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
deploying SRS curtain airbag.
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Keys and Doors2
Keys and Doors
2-1. Keyless Access with Push-Button Start System .................................................................94
Safety Precautions ..... .......................................... ..........94
Locking and Unlocking with “Keyless Access” Entry Function ..............................................................97
Unlock Using PIN Code Access ..................................100
Power Saving Function ................................................102
Power Saving Function of Access Key Fob...............103
Disabling Keyless Access Function ...........................103
Selecting Audible Signal Operation (If Equipped).....105
Selecting Hazard Warning Flasher Operation ...........106
Warning Chimes and Warning Indicator ....................106
When Access Key Fob Does Not Operate Properly.......................................................................106
Replacing Battery of Access Key Fob ........................106
Replacing Access Key Fob..........................................106
Certification for Keyless Access with Push-Button Start System ...............................................................106
2-2. Immobilizer ..........................................................108
Security Indicator Light ...............................................108
Key Replacement..........................................................108
Certification for Immobilizer System ..........................108
2-3. Remote Keyless Entry System ..........................109
Locking the Doors ........................................................110
Unlocking the Doors ....................................................110
Opening the Trunk Lid .................................................110 Setting Audible Signal Operation (If Equipped)........ 110
Selecting Hazard Warning Flasher Operation........... 110
Vehicle Finder Function .............................................. 110
Sounding a Panic Alarm ............................................. 110
Replacing the Battery .................................................. 111
Replacing Lost Transmitters ...................................... 111
2-4. Door Locks ..........................................................111
Locking and Unlocking from the Outside ................. 111
Locking and Unlocking from the Inside .................... 112
Key Lock-In Prevention Function............................... 113
Battery Drainage Prevention Function ...................... 113
2-5. Alarm System ......................................................114
Alarm System Operation ............................................. 114
Arming the System ...................................................... 114
Disarming the System ................................................. 115
Alarm System Setting.................................................. 115
If You Have Accidentally Triggered the Alarm
System........................................................................ 116
2-6. Windows ..............................................................116
Power Window Operation ........................................... 117
Initialization of Power Window ................................... 118
2-7. Trunk Lid ..............................................................119
To Open and Close the Trunk Lid from Outside ....... 120
To Open the Trunk Lid from Inside ............................ 121
Internal Trunk Lid Release Handle ............................. 121
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Keyless Access with Push-Button Start System
942-1. Keyless Access withPush-Button Start SystemThe following access key fobs are
provided with the vehicle.1) Access key fob
2) Key number plateThe keyless access with push-button start
system allows you to perform the following
functions when you are carrying the
access key fob.
Locking and unlocking of the doors,
fuel filler lid
 Opening the trunk
 Starting and stopping the engine. For
detailed information, refer to "Starting and
Stopping Engine"  P229. 
Arming and disarming the alarm
system. For detailed in formation, refer to
"Alarm System" P114.
NOTE Locking and unlocking by the
remote keyless entry system can also
be controlled with the buttons on the
access key fob. For detailed informa-
tion, refer to "Remote Keyless Entry
System" 
P109.
 Carefully store the key number plate
supplied with the access key fob. It is
necessary for vehicle repair and addi-
tional registration of access key fobs.
For details, refer to "Key Replacement"

P108.
An emergency key is attached to each
access key fob.
1) Release button
2) Emergency keyWhile pressing the release button of the
access key fob, take out the emergency
key.
The emergency key is used for locking
and unlocking the driver’s door.■
Safety Precautions
203629
11 2
WARNING
If you wear an implanted pacemaker
or an implanted defibrillator, stay at
least 8.7 in (22 cm) away from the
transmitting antennas installed on
the vehicle.
1
2
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