2023 SUBARU BRZ key fob battery

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
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
98▼Operating ranges1) Antenna
2) Operating range (approximately 16 to
32 in (40 to 80 cm))
1) LED indicator
When the access key fob is within either of
the operating ranges of the doors, the
LED indicator on the access key fob
flashes. When the keyless access func-
tions are disabled, the LED indicator does
not flash unless a button on the access
key fob is pressed.NOTE If the access key fob is placed too
close to the vehicle body, the keyless
access functions may not operate
properly. If it does not operate prop-
erly, repeat the operation from farther
away.
 If the access key fob is placed near
the ground or in an elevated location
from the ground, even if it is in the indi-
cated operating range, the keyless
access function may not operate prop-
erly.
 When the access key fob is within
the operating range, it is possible for
anyone, even someone who is not
carrying the access key fob, to operate
the keyless access function. Note that
the keyless access function can be
operated only by the door handle, door
lock sensor or trunk opener button in
the operating range in which the
access key fob is detected.
 It is not possible to lock the doors,
trunk lid and fuel filler lid using the keyless access function when the

access key fob is inside the vehicle.
However, depending on the status of
the access key fob and the environ-
mental conditions, the access key fob
may be locked inside the vehicle.
Before locking the vehicle, make sure
that you have the access key fob.
 When the battery of the access key
fob is discharged, or when operating it
in a location with strong radio waves or
noise (e.g., near a radio tower, power
plant, broadcast station or an area
where wireless equipment is used), or
while talking on a cell phone, the oper-
ating ranges may be reduced, or the
keyless access function may not
operate. 
In such a case, perform the procedure
described in "Locking and Unlocking"
 P326.
 The doors may lock or unlock when
the car is being washed or exposed to
a significant amount of water that
touches the door handle while the key
fob is still in the operating range.
▼ How to lock and unlock
It is possible to perform the following oper-
ations when you are carrying the access
key fob.
 Lock and unlock the doors and the fuel
filler lid
2
2
1
2
1
1204127202501
1
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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
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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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.
202502
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2
3
4
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