engine SUBARU BRZ 2023 User Guide

Seat Heater (If Equipped)
35
Seat, Seatbelt and SRS Airbags1
– CONTINUED –
▼Head restraint height adjustment1) Head restraint
2) Release buttonTo raise:
Pull the head restraint up.
To lower:
Push the head restraint down while
pressing the release button on the top of
the seatback.
To remove:
While pressing the release button, pull out
the head restraint.
To install:
Install the head restraint into the holes that
are located on the top of the seatback until
the head restraint lo cks. Press and hold
the release button to lower the head
restraint. Each head restraint should be adjusted so

that the center of the head restraint is
closest to the top of the occupant’s ears.
NOTEIt is not possible to remove or install
the head restraint wi thout reclining the
front seatback. Reclining the front
seatback and then remove or install
the head restraint.
1-2. Seat Heater (If Equipped)The seat heater operates when the igni-
tion switch is in the “ON” position.NOTE Use of the seat heater for a long
period of time while the engine is not
running can cause battery discharge.
1 2
102668
102080
CAUTION

Do not put hard or heavy objects
or ones with protrusions on the
seat, and do not stab the seat with
sharp objects, such as pins or
needles. People with deli cate skin may
suffer slight burns even at low
temperatures if they use the seat
heater for a long period of time.
When using the heater, always be
sure to warn the persons
concerned. Do not put anything on the seat
which insulates against heat,
such as a blanket, cushion, or
similar items. This may cause the
seat heater to overheat. When the seat is warmed enough
or before you leave the vehicle,
be sure to turn off the seat heater.
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SRS Airbag (Supplemental Restraint System Airbag)
62
NOTEWhen you sell your vehicle, we urge
you to inform the buyer that the vehicle
is equipped with SRS airbags. Also,
notify the buyer of the applicable
section in this Owner’s Manual.
 If the SRS airbag deploys, fuel
supply will be cut off to reduce the risk
of fire caused by leaking fuel. For
details about restarting of the engine,
refer to "If Your Ve hicle Is Involved in
an Accident" P328.
 Do not sit or lean unnecessarily
close to the SRS airbag. Because
the SRS airbag deploys with
considerable speed and force to
protect in high speed collisions,
the force of an airbag can injure
an occupant whose body is too
close to SRS airbag.
It is also important to wear
seatbelts to help avoid injuries
that can result when the SRS
airbag contacts an occupant not
in their proper position.Even when properly positioned,
there remains a possibility that
an occupant may suffer minor
injury, such as abrasions and
bruises to the face or arms,
because of the SRS airbag
deployment force.
WARNING
 Keep arms away from either door
or its internal trim. They could be
injured in the event of SRS side
airbag deployment. Do not place any objects over or
near the SRS airbag cover or
between you and the SRS airbag.
If the SRS airbag deploys, these
objects could interfere with its
proper operation and could be
propelled inside the vehicle,
causing injury.
102009
CAUTION
 When the SRS airbag deploys,
some smoke will be released.
This smoke could cause
breathing problems for people
with a history of asthma or other
breathing trouble. If you or your
passengers have breathing prob-
lems after SRS airbag deploys,
get fresh air promptly. A deploying SRS airbag releases
hot gas. Occupants could get
burned if they come into direct
contact with the hot gas.
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Keyless Access with Push-Button Start System
942-1. Keyless Access with Push-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
202500
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Keyless Access with Push-Button Start System
96
NOTEThe operational/non-operational
setting for the keyless access function
can be changed. For the setting proce-
dure, refer to "Disabling Keyless
Access Function" P103.
 For detailed info rmation about the
operation method fo r the push-button
ignition switch while the keyless
access function is switched to the non-
operational mode, refer to "Access Key
Fob – If Access Key Fob Does Not
Operate Properly" P325.
 The keyless access with push-
button start system uses weak radio
waves. The status of the access key
fob and environmental conditions may
interfere with the communication
between the access key fob and the
vehicle under the following conditions,
and it may not be possible to lock or
unlock the doors or start the engine.
CAUTION
 Never leave or store the access
key fob inside the vehicle or
within 6.6 ft (2 m) around the
vehicle (e.g., in the garage). The
access key fob may be locked
inside the vehicle, or the battery
may discharge rapidly. Note that
the push-button ignition switch
may not turn on in some cases
depending on the location of the
access key fob. The access key fob contains elec-
tronic components. Observe the
following precautions to prevent
malfunctions.
- It is recommended to have the
access key fob battery
replaced at an authorized
SUBARU dealer to avoid the
risk of damage.- Do not get the access key fob
wet. If the access key fob gets
wet, wipe it off immediately
and let it dry completely.- Do not apply strong impacts
to the access key fob.
- Never leave the access key
fob in direct sunlight or
anywhere that may become
hot, such as on the dash-
board. It may damage the
battery or cause circuit
malfunctions.- Do not wash the access key
fob in an ultrasonic washer.- Do not leave the access key
fob in humid or dusty loca-
tions. Doing so may cause
malfunctions.- Keep the access key fob away
from magnetic sources.- Do not leave the access key
fob near a personal computer
or home electrical appliance.- Do not leave the access key
fob near a battery charger or
any electrical accessories.- Do not apply metallic window
tint or attach metallic objects
to the windows.- Do not fit non genuine acces- sories or parts.
If the access key fob is dropped,
the integrated emergency key
inside may become loose. Be
careful not to lose the emergency
key.
 When traveling in an airplane, do
not press the button of the access
key fob. If any button of the
access key fob is pressed, radio
waves are emitted and may affect
the operation of the airplane. In a
bag, take measures to prevent the
buttons from being pressed acci-
dentally.
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Keyless Access with Push-Button Start System
97
Keys and Doors2
– CONTINUED –
- When operating near a facility
where strong radio waves are trans-
mitted, such as a broadcast station
and power transmission lines.
- When products that transmit
radio waves are used, such as an
access key fob or a remote trans-
mitter key of another vehicle.
- When carrying the access key
fob of your vehicle together with the
access key fob or the remote trans-
mitter of another vehicle.
- When the access key fob is
placed near wireless communica-
tion equipment such as a cell phone.
- When the access key fob is
placed near a metallic object.
- When metallic accessories are
attached to the access key fob.
- When carrying the access key
fob with an elec tronic appliance
such as a laptop computer.
- When the battery of the access
key fob is discharged.
 The access key fob is always
communicating with the vehicle and is
continuously using the battery.
Although the life of the battery varies
depending on the operating condi-
tions, it is approximately 1 to 2 years. If
the battery becomes fully discharged,
replace it with a new one. 
If an access key fob is lost, it is
recommended that all of the remaining
access key fobs be reregistered. For
reregistration of an access key fob,
contact a SUBARU dealer.
 For a spare access key fob, contact
a SUBARU dealer.
 Up to 7 access key fobs can be
registered for one vehicle.
 Do not leave the access key fob in
the storage spaces inside the vehicle,
such as the door pocket, dashboard or
inside the corner of the trunk. Vibra-
tions may damage the access key fob
or turn on the switch, possibly
resulting in a lockout.
 After the vehicle battery is
discharged or replaced, initialization of
the steering lock system may be
required to start the engine. In this
case, perform the following procedure
to initialize the steering lock. (1) Turn the push -button ignition
switch to the “OFF” position. For
details, refer to "Switching Power
Status" P125.
(2) Open and close the driver’s door.
(3) Wait for approximately 10
seconds.
When the steering is locked, the initial-
ization is completed.
 Do not leave the access key fob in
the following places. - On the instrument panel
- On the floor
- Inside the glove box
- Inside the door trim pocket
- On the rear seat
- On the rear shelf
- Inside the trunk
 If you do, the following situations
may occur. - The access key fob is mistakenly
locked inside the vehicle.
- A false warning issues although
no malfunction actually occurs.
- No warning issues even when a
malfunction occurs.
■ Locking and Unlocking with
“Keyless Access” Entry
FunctionWhen the access key fob is carried within
the operating range, the doors, the fuel
filler lid can be locked/unlocked just by
touching the door handle.NOTEThe vehicle can also be locked/
unlocked with the remote keyless
entry system. For details, refer to
"Remote Keyless Entry System"
 P109.
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Keyless Access with Push-Button Start System
103
Keys and Doors2
– CONTINUED –
Open a door and then close it
 Turn the push-button ignition switch to
the “ON” position■ Power Saving Function of
Access Key FobThis function stops the access key fob
from receiving signals and helps minimize
the battery consumption of the access key
fob.
1. Press the “ ” button twice while
holding the “ ” button.1) LED indicator2. Confirm that the LED indicator blinks 4
times to notify that the setting is complete.
When the access key fob is in the power
save mode, the keyless access function and push-button star
t system will not be
available.
To cancel the power save mode, press
one of the buttons on the access key fob.
■ Disabling Keyless Access
FunctionWhen the vehicle is not going to be used
for a long time, or when you choose not to
use the keyless access function, the
keyless access function can be disabled.NOTE The locking and unlocking function
by the remote keyless entry system is
not disabled.
 To start the engine while the func-
tions are disabled, perform the proce- dure described in "Starting Engine"

 P326.
▼ Disabling functions
▽ By operating the access key fob
To disable the keyless access function by
operating the access key fob, register a
PIN code for PIN Code Access. For
details about registering a PIN code, refer
to "Unlock Using PIN Code Access"
 P100.
1. Open the driver’s door.
2. Rotate the lock lever forward.
202501
1
WARNING
If you have an implanted pacemaker
or an implanted defibrillator, per-
form the procedure "By operating
the driver’s door" P104 to disable
the keyless access function. If you
perform the procedure "By operat-
ing the access key fob" P103, the
operation of an implanted pace-
maker or implanted defibrillator
may be affected by the radio waves
from the transmitter antenna.
203610
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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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Alarm System
114the battery from going dead. The following
interior lights are affect ed by this function.NOTEThe default setting for this function
is set as “operational”. The opera-
tional/non-operation al setting of this
function can be changed by a SUBARU
dealer. Contact your SUBARU dealer to
change the setting.
 When leaving the vehicle, please
make sure that all doors are completely
closed.
 The battery drainage prevention
function does not operate when the
ignition switch is in “ACC” or “ON”
position.
 The battery drainage prevention
function for the pu sh-button ignition
switch. For details, refer to "Battery
drainage prevention function" P126.
2-5. Alarm SystemThe alarm system helps to protect your
vehicle and valuables from theft. The horn
sounds and the hazard warning flashers
flash if someone attempts to break into
your vehicle.
The system can be armed or disarmed
with the keyless access function or access
key fob.
The system will not be activated when the
push-button ignition switch is in the “ACC”
or “ON” position.
Your vehicle’s alarm system has been set
for deactivation at the time of shipment
from the factory. You can set the system
for activation yourself or have it done by
your SUBARU dealer. Refer to "Alarm
System Setting" P115.■ Alarm System OperationWhen the alarm system is armed, it is trig-
gered by the opening any of the doors, the
trunk lid or engine hood.
The alarm system will activate the
following alarms when triggered.
 The vehicle’s horn will sound for 60
seconds.
 The hazard warning flashers, head-
lights, side marker lights, tail lights and
map lights will flash for 60 seconds.
NOTEThe alarm system can be set to trigger
the illumination of the map lights (illu-
minates only when the door interlock
switch is in the “DOOR” position).■ Arming the SystemThe alarm system becomes armed when
the following operation is performed.
1. Close all windows and turn the ignition
switch to the “OFF” position.
2. Carry the key and get out of the
vehicle.
3. Make sure that the engine hood is
locked.
4. Lock the doors using any of the
following methods.
Locking using the remote keyless
entry system. For details, refer to
"Remote Keyless Entry System"
 P109.
 Locking using the keyless access
function. For details, refer to "Locking
with the door lock sensor" P99.
 Locking using the power door
locking switch. For details, refer to
"Locking using power door locking
switch" P112.
Item Switch
posi-tion Automatically turn-
ing off
Map lights DOOR Approximately 20
minutes later
Ignition
switch light ―
Approximately 20
minutes later
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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.
204136
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Trunk Lid
119
Keys and Doors2
– CONTINUED –
3. Open the window completely and then
press and hold down the power window
switch for approximately 1 second.
4. Close the window completely and then
pull and hold the power window switch for
approximately 1 second.
2-7. Trunk Lid
WARNING
 To prevent dangerous exhaust
gas from entering the vehicle,
always keep the trunk lid closed
while the engine is running. Check that the trunk is
completely closed before driving.
If it is not, it may suddenly open,
which could lead to an accident. Help prevent children, adults or
animals from locking themselves
in the trunk. On hot or sunny
days, the temperature in the trunk
could quickly become high
enough to cause death or serious
heat-related injuries including
brain damage to anyone locked
inside, particularly for small chil-
dren. When leaving the vehicle, close
all windows and lock all doors.
Also make certain that the trunk
is closed.
CAUTION
 Be extremely careful not to catch
fingers or other objects when
closing the trunk lid.
 Before opening and closing the
trunk, carefully check your
surroundings to make sure it will
not strike any people or objects. When loading and unloading
cargo, be careful not to come in
contact with the hot engine
exhaust gas or the exhaust pipe,
because they could burn you. Be careful opening the trunk
when the wind is strong. The
trunk lid could close or open
suddenly, possibly causing inju-
ries. Make sure that the trunk is
completely open when using it. If
it is not, the trunk lid may
suddenly drop and cause serious
injury. Remove snow and ice from the
trunk lid before opening it. Not
doing so could cause the trunk lid
to fall after it is opened. Under the following conditions,
the trunk lid may close unexpect-
edly, striking people or objects in
its path:
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