2023 SUBARU BRZ change key battery

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
102NOTEPress the trunk opener button ten
times to enter “0”.
 Change the PIN code frequently to
protect your vehic le from theft.
 If you have lent your vehicle to
another person, confirm that the PIN
code has not been changed or deleted.
If the PIN code has been changed or
deleted, reregister a new PIN code.
 If you make an error during the
registration procedure, press the “ ”
or “ ” button on the access key fob.
Then, start over from the procedure
described in “Registration for a PIN
code”.
 To protect your ve hicle from theft,
you cannot register “00000” to “99999”
or “12345” as a PIN code.
 Do not register your vehicle license
plate number or simple numbers such
as “11122” or “12121” as a PIN code.
Doing so will increase the risk of
vehicle theft.
 When you try to register “22222”,
the registered PIN code will be deleted.
You cannot unlock the doors by PIN
Code Access until a new code is regis-
tered.
 After registering a new PIN code,
make sure that you can unlock the
doors using the PIN code. 
The PIN code cannot be deleted
while the keyless access function is
disabled by operating the access key
fob.
 Reregister the PIN code in the
following case. - When you forget the PIN code
- When you want to change the
PIN code
▼ Unlocking
Perform steps (1) to (5) of step 5
described in “Registration”.NOTE You cannot unlock by PIN Code
Access in the following cases. - When the access key fob is
within the operating ranges
- When the ignition switch is in the
“ACC” or “ON” position
 If you make an operation error
during the unlocking procedure, start
over with the unlocking procedure
after waiting for 5 seconds or longer.
 To protect your vehic le from theft, a
buzzer will sound if incorrect PIN
codes are entered five times continu-
ously. If this occurs, you cannot unlock
the doors by PIN Code Access for 5
minutes.
■ Power Saving FunctionTo protect the access key fob battery and
the vehicle battery, the keyless access
function will be disabled as follows.
 When the keyless access function and
the remote keyless entry system have not
been used:
(1) 5 days after the push-button igni-
tion switch has been turned off,
communication between the antennas
and the access key fob will be stopped.
(2) 9 days after step (1), the sensors
(both lock sensor and unlock sensor)
on the passenger’s door will be
disabled.
 When the access key fob has been left
in the operating range for 10 minutes or
longer while all doors are locked, the
keyless access function will be disabled.
▼ Recovery from power saving modeWhen one of the following operations is
performed, the keyless access function
will be recovered.
 Unlock by gripping the door handle
(only when the sensors on the
passenger’s door are not disabled) or
pressing the trunk opener button on the
trunk lid
 Lock or unlock by the remote keyless
entry system
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Keyless Access with Push-Button Start System
106center information display. For details,
refer to "Car settings" P165.
Furthermore, the volume setting of the
audible signal can also be changed by a
SUBARU dealer. Consult your SUBARU
dealer for details.■ Selecting Hazard Warning
Flasher OperationUsing the hazard warning flasher, the
system will give you a visible signal when
the doors are locked or unlocked. If
desired, you can turn the hazard warning
flashers off by operating the center infor-
mation display. For details, refer to "Car
settings" P165. The setting can also be
changed by a SUBARU dealer. Consult
your SUBARU dealer for details.■ Warning Chimes and
Warning IndicatorThe keyless access with push-button start
system is equipped wi th a warning chime
and the access key wa rning indicator in
order to minimize improper operations
and help protect your vehicle from theft.
For details, refer to "Warning Chimes and
Warning Indicator of the Keyless Access
with Push-Button Start System" P143.
■ When Access Key Fob Does
Not Operate ProperlyRefer to "Access Key Fob – If Access Key
Fob Does Not Operate Properly" P325.■ Replacing Battery of Access
Key FobRefer to "Replacing Battery of Access Key
Fob" P376.■ Replacing Access Key FobAccess key fobs can be replaced at
SUBARU dealers. For more details,
contact a SUBARU dealer.■ Certification for Keyless
Access with Push-Button
Start SystemU.S.-spec. models
FCC ID: HYQ14AHK
FCC ID: Y8PSU19S-3
FCC ID: Y8PSSPIMB03 This device complies with part 15 of the

FCC Rules. Operation is subject to the
following two conditions: (1) This device
may not cause harmful interference, and
(2) this device must accept any interfer-
ence received, including interference that
may cause undesired operation.
CAUTION
FCC WARNINGChanges or modifications not
expressly approved by the party
responsible for compliance could
void the user’s authority to operate
the equipment.
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Remote Keyless Entry System
109
Keys and Doors2
– CONTINUED –
2-3. Remote Keyless Entry System
Access key fob
1) Lock/arm button
2) Unlock/disarm button
3) Trunk lid opener button
4) PANIC buttonThe remote keyless entry system has the
following functions.
 Locking and unlocking the doors and
fuel filler lid
 Opening the trunk lid
 Sounding a panic alarm
 Arming and disarming the alarm
system. For details, refer to "Alarm
System" P114.
The operable distance of the remote
keyless entry system is approximately 30
feet (10 meters). Ho wever, this distance
will vary depending on environmental
conditions. The system’s operable distance will be shorter in areas near a

facility or electronic equipment emitting
strong radio waves such as a power plant,
broadcast station, TV tower, or remote
controller of home electronic appliances.
NOTE The remote keyless entry system
will not be activa ted when the push-
button ignition switch is in any posi-
tion other than the “OFF” position.
 The hazard warning flashers will
flash once or twice when the access
key fob button is pressed in the
following cases. - When locking the doors
- When unlocking the doors
If desired, you can turn the hazard
warning flashers off by operating the
center information display. For details,
refer to "Car settings" P165. The set-
ting can also be changed by a
SUBARU dealer. Consult your
SUBARU dealer for details.
The setting of the Remote Keyless
Entry System operation can be
changed by your SUBARU dealer.
Consult your SUBARU dealer for
details. For details, refer to "Function
Settings and Adjustments Performed
by a Dealer" P391.
CAUTION
 Do not expose the remote trans-
mitter to severe shocks, such as
those experienced as a result of
dropping or throwing. Do not take the remote trans-
mitter apart except when
replacing the battery. Do not get the remote transmitter
wet. If it gets we t, wipe it dry with
a cloth immediately. When you carry the remote trans-
mitter on an airplane, do not
press the button of the remote
transmitter while in the airplane.
When any button of the remote
transmitter is pressed, radio
waves are sent and may affect the
operation of the airplane. When
you carry the remote transmitter
in a bag on an airplane, take
measures to prevent the buttons
of the remote transmitter from
being pressed.
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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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Door Locks
113
Keys and Doors2
– CONTINUED –
▼How to operate the power door
locking switches
All doors and the fuel filler lid can be
locked and unlocked by pressing either
side of the power door locking switches
located on the driver’s side and the
passenger’s side doors.
1) Lock
2) UnlockNOTEMake sure that you do not leave the
key inside the vehicle before locking
the doors from the outside using the
power door locking switches.■ Key Lock-In Prevention
FunctionAll the doors will not lock when the power
door locking switch is pushed with the
door open while the ignition switch is in the
“ACC” or “ON” position.
NOTE When leaving the vehicle, make sure
you are holding the key before locking
the doors.
 The factory setting (default setting)
for this function is set as “operational”.
This function’s operational/non-opera-
tional setting can be changed by a
SUBARU dealer. Contact a SUBARU
dealer for details.
▼ Non-operation of key lock-in
prevention function
When the system is set so that it does not
operate, the doors are locked by the
following operation.
 If the lock lever is turned to the front
(“LOCK”) position with the driver’s door
open and the driver’s door is then closed
with the lock lever in that position, the
driver’s door is locked.
 If the spare key is used to lock the
driver’s door from the outside of the
vehicle, the door is locked.■ Battery Drainage Prevention
FunctionIf a door is not completely closed, the inte-
rior lights will remain illuminated as a
result. However, several lights are auto-
matically turned off by the battery
drainage prevention function to prevent
WARNING
Keep all doors locked when you
drive, especially when small chil-
dren are in your vehicle.Along with the proper use of
seatbelts, locking the doors
reduces the chance of being thrown
out of the vehicle in an accident.It also helps prevent passengers
from falling out by preventing a
door from being accidentally
opened, and intruders from unex-
pectedly opening doors and enter-
ing your vehicle.
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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.
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