ECU SUBARU BRZ 2023 Owner's Manual

Child Restraint Systems
583. While following the instructions
supplied by the child restraint system
manufacturer, connect the lower hooks
onto the lower anchorages located at “ ”
marks on the bottom of the rear seatback.
When the hooks are connected, make
sure the adjacent seatbelts are not
caught. 4. If your child restraint system is a flex-
ible attachment type (which uses tether

belts), push the child restraint system into
the seat cushion and pull both left and
right lower tether belts up to secure the
child restraint system by taking up the
slack in the belt.
5. Latch the top tether hook onto the
tether anchorage that is located on the
rear shelf and tighten the top tether firmly.
For additional instructions, refer to "Top
Tether Anchorages" P59. 6. Before having a child sit in the child

restraint system, try to move it back and
forth and right and left to check if it is firmly
secured. Sometimes a child restraint
system can be more firmly secured by
pushing it down into the seat cushion. It
should not be possible to move the child
restraint system more than 1 in (2.5 cm).
7. To remove the child restraint system,
follow the reverse procedures of installa-
tion.
SUBARU recommends that you check
with a certified Child Passenger Safety
Technician to ensure the proper installa-
tion of your child restraint system. For
more information, and to locate the
closest inspection location in the U.S.,
refer to the National Highway Traffic
Safety Administration (NHTSA) website.
In Canada, check with Transport Canada.
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SRS Airbag (Supplemental Restraint System Airbag)
603. Tighten the top tether securely.
SUBARU recommends that you check
with a certified Child Passenger Safety
Technician to ensure the proper installa-
tion of your child restraint system. For
more information, and to locate the
closest inspection location in the U.S.,
refer to the National Highway Traffic
Safety Administrati on (NHTSA) website.
In Canada, check with Transport Canada.
After removing a ch ild restraint system,
make sure to install the top tether cover to
its original position.
1-7. SRS Airbag (Supple -
mental Restraint System Airbag)Supplemental Restraint System (SRS)
name is used because the airbag system
supplements the vehi cle’s seatbelts.
This vehicle is equipped with a supple-
mental restraint system which consists of
seven airbags.
The configurations are as follows.
 Driver’s and front passenger’s frontal
airbags
 Driver’s and front passenger’s side
airbags
 Curtain airbags (for driver, front
passenger and rear passengers)
 Knee airbag for driver
These SRS airbags are designed only
to be a supplement to the primary
protection provided by the seatbelt.
The system also cont rols front seatbelt
pretensioners. For operation instructions
and precautions conc erning the seatbelt
pretensioner, refer to "Seatbelt Preten-
sioners" P44.
■ General Precautions
regarding SRS Airbag
System
WARNING
To obtain maximum protection in
the event of an accident, the
driver and all passengers must
always wear seatbelts when in
the vehicle. The SRS airbag is
designed only to be a supplement
to the primary protection
provided by the seatbelt. It does
not eliminate the need to fasten
seatbelts. In combination with the
seatbelts, it offers the best
protection in case of a serious
accident.
Not wearing a seatbelt increases
the chance of severe injury or
death in a crash even when the
vehicle has the SRS airbag.For instructions and precautions
concerning the seatbelt system,
refer to "Seatbelts" P39.
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SRS Airbag (Supplemental Restraint System Airbag)
65
Seat, Seatbelt and SRS Airbags1
– CONTINUED –
■General Precautions
regarding SRS Airbag
System and Children
WARNING
Seat children in the rear seat prop-
erly restrained at all times. The SRS
airbag deploys with considerable
speed and force and can injure or
even kill children, especially if they
are not restrained or improperly
restrained. Because children are
lighter and weaker than adults, their
risk of being injured from deploy-
ment is greater.
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For that reason, we strongly recom-
mend that ALL children (including
those in child rest raint systems) sit
in the REAR seat properly
restrained at all times in a child
restraint system or in a seatbelt,
whichever is appropriate for the
child’s age, height and weight.Secure ALL types of child restraint
systems (including forward facing
child restraint system) in the REAR
seats at all times.According to accident statistics,
children are safer when properly
restrained in the rear seating posi-
tions than in the front seating posi-
tions.For instructions and precautions
concerning the child restraint sys-
tem, refer to "Ch ild Restraint Sys-
tems" P46.
WARNING
NEVER INSTALL A CHILD
RESTRAINT SYSTEM 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.
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SRS Airbag (Supplemental Restraint System Airbag)
71
Seat, Seatbelt and SRS Airbags1
– CONTINUED –
▼Front passenger’s SRS frontal
airbagThe 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 sensors are
installed between the seat and seat rails,
and monitor the physique and posture of
the front passenger. Using this informa-
tion, the occupant detection system deter-
mines whether the front passenger’s SRS
frontal airbag should be deployed or not.
The occupant detect ion 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
pretensioner. For details about the
seatbelt pretensioner, refer to "Seatbelt
Pretensioners" P44.
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1
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 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. 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)
74
: Front passenger’s frontal airbag ON
indicator
: 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
activatedThe 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 child restraint system
(including any 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
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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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
100When the driver’s door handle is
gripped, only the driver’s door and the fuel
filler lid will be unlocked.
 When the passenger’s door handle is
gripped, all doors (including the trunk lid)
and the fuel filler lid will be unlocked.
Also, an electronic chirp will sound twice
and the hazard warning flashers will flash
twice.
▽ Opening trunk1) Trunk opener buttonCarry the access key fob, and press the
trunk opener button. The trunk will open.NOTEUnder the following conditions, the
trunk can be opened without the key
fob. 
The trunk lock/unlock setting is on.
 All doors are unlocked.
The trunk lock/unlock setting can be
changed by a SUBARU dealer. Contact
your SUBARU dealer to change the
setting.
▼ Door unlock selection function
When the door is unlocked using the
keyless access func tion, only the doors
that were set and the fuel filler lid can be
unlocked.
The settings can be changed with the
following methods.
 The setting can be changed by oper-
ating the center information display.
For details, refer to "Car settings" P165.
 The setting can be changed by a
SUBARU dealer.
■ Unlock Using PIN Code
Access1) Trunk opener buttonWhile all doors are locked, you can unlock
the doors without a key by operating the
trunk opener button.NOTEPIN Code Access will be helpful if the
key is accidentally left in the vehicle. It
is recommended that a 5-digit security
code (PIN code) is registered.
1
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1
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Immobilizer
1082-2. ImmobilizerThe immobilizer system is designed to
prevent an unauthorized person from
starting the engine. Only keys registered
with your vehicle’ s immobilizer system
can be used to operate your vehicle. If
engine start is attempted with an unregis-
tered access key fob or key, the engine
will not start. Even if the engine does start,
it will stop after a few seconds. This
system, however, is not a 100% anti-theft
guarantee.NOTE To protect your ve hicle from theft,
please pay close attention to the
following security precautions: - Never leave your vehicle unat-
tended with its keys inside. - Before leaving your vehicle,

close all windows and lock the
doors.
- Do not leave spare keys or any
record of your key number in the
vehicle.
 The vehicle has a maintenance-free
type immobilizer system.
■ Security Indicator LightRefer to "Security Indicator Light" P148.■ Key ReplacementYour key number plate will be required if
you ever need a replacement key made.
Any new key must be registered for use
with your vehicle’ s immobilizer system
before it can be used. The maximum
number of keys that can be registered for
use with one vehicle is seven.
One key that has already been registered
is required in order to register a new key.NOTEIf you lose a key, the lost key’s ID code
still remains in the memory of the vehi-
cle’s immobilizer system. For security
reasons, the lost key’s ID code should
be erased from the memory. To erase
the lost key’s ID code, all keys that will
be used are required. For details about new key registration

and erasing the lost key’s ID code,
contact your SUBARU dealer.
■ Certification for Immobilizer
SystemRefer to "Certificati on for Keyless Access
with Push-Button Start System" P106.
CAUTION
 Do not place the key under direct
sunlight or anywhere it may
become hot. Do not get the key wet. If the key
gets wet, wipe it dry with a cloth
immediately. Do not modify or remove the
system. If modified or removed,
the proper operation of the
system cannot be guaranteed.
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Door Locks
111
Keys and Doors2
– CONTINUED –
■Replacing the BatteryRefer to "Replacing Battery" P375.■ Replacing Lost TransmittersIf you lose a transmitter or want to
purchase additional transmitters (up to
four can be programmed), you should re-
program all of your transmitters for secu-
rity reasons. For details, contact your
SUBARU dealer and have the transmit-
ters programmed into the remote keyless
entry system.
2-4. Door Locks■ Locking and Unlocking from
the Outside
NOTEIf you unlock the driver’s door with an
emergency key and open the door
while the alarm system is armed, the
alarm system is triggered and the vehi-
cle’s horn sounds. In this case, per-
form any of the following operations:
 Press unlock button on the access
key fob.
 Turn the push-button ignition switch
to the “ACC” position.
 Carry the access key fob and
perform either of the following proce-
dures. - Grip the door handle.
- Press the trunk opener button.
For details about the alarm system,
refer to "Alarm System" P114. ▼
How to lock and unlock the vehicle
using the emergency key
1) Rotate the key toward the front to lock.
2) Rotate the key toward the rear to
unlock.In this case, only the driver’s side door is
locked or unlocked.NOTEThe emergency key is directional. If
the key cannot be inserted, change the
direction that the grooved side is fac-
ing and insert it again.
▼ How to lock the vehicle without
using the keyTo lock the door from outside without the
key, the following methods are available.
2
1
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Alarm System
115
Keys and Doors2
– CONTINUED –
Security indicator light
NOTE
All doors, the trunk lid and fuel filler
lid will lock, an electronic chirp will
sound once, the hazard warning
flashers will flash once, and the secu-
rity indicator light will turn on.
 If any of the doors are not fully
closed, an electronic chirp sounds 5
seconds to alert you that the doors are
not properly closed. When you close
the door, doors will automatically lock
and the system will automatically arm
in 30 seconds.
5. Approximately 30 seconds later, the
system will enter surveillance state.
When the system is in surveillance state,
the security indicator light will then flash
slowly (once approximately every 3 seconds), indicating
that the system has
been armed for surveillance.
NOTE The system can be armed even if the
windows are open. Always make sure
that they are fully closed before arming
the system.
 If any of the following actions is
done during the standby period, the
system will not switch to the surveil-
lance state. - Doors (including the trunk lid)
are unlocked.
- Any door (including the engine
hood) is opened.
- Push-button ignition switch is
turned to the “ACC” position■Disarming the SystemPerform either of the following proce-
dures.
Briefly press a button (for less than 2
seconds) on the access key fob.
 Carry the access key fob and perform
either of the following procedures.
- Grip the door handle.
- Press the trunk opener button
- Unlock using the PIN code access.
The flashing of the security indicator light
will blinks slowly (once approximately every 3 seconds), indicating that the alarm

system has been disarmed.
▼ Emergency disarming
If you cannot disarm the system using the
access key fob, you can disarm the
system without using the access key fob.
The system can be disarmed if you turn
the ignition switch from the “OFF” position
to the “ON” position.
NOTEIf the access key fob battery is dis-
charged, perform the procedure
described in "Switching Power Status"
 P326. In such a case, replace the
battery immediately. Refer to "Replac-
ing Battery of Access Key Fob"
 P376.■ Alarm System SettingTo change the setting of your vehicle’s
alarm system for activa tion or deactiva-
tion, do the following.
1. Disarm the alarm system. Refer to
"Disarming the System" P115.
2. Sit in the driver’s seat and shut all
doors, the trunk lid and engine hood.
3. Turn the ignition switch to the “ON”
position.
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