key SUBARU BRZ 2023 Service Manual

Warning and Indicator Lights
148■Security Indicator
LightThis indicator light shows the status of the
alarm system. It also indicates operation
of the immobilizer system.
In the event that an unauthorized key is
used (for example, the key is unregistered
or the ID code does not match), the power
is not switched to “ON” and the security
indicator light continues blinking.
If the indicator light does not blink in the
above conditions, it may indicate that
immobilizer system may be malfunc-
tioning. Contact your nearest SUBARU
dealer immediately.
▼ Alarm system
It blinks to show the driver the operational
status of the alarm system. For detailed
information, refer to "Alarm System"
 P114.
▼ Immobilizer system
The security indicator light starts blinking
in the following conditions.
 Immediately after the push-button igni-
tion switch is turned to the “OFF” position.
 Immediately after the driver’s door is
opened or closed when all of the following
conditions are met. - The push-button ignition switch is in

the “ON” or “ACC” position.
- The engine is not running.
In the event that an unauthorized key is
used (for example, the key is unregistered
or the ID code does not match), the power
is not switched to “ON” and the security
indicator light continues blinking.
If the indicator light does not blink in the
above conditions, it may indicate that
immobilizer system may be malfunc-
tioning. Contact your nearest SUBARU
dealer immediately.
In the event that an unauthorized key (for
example, an unauthorized duplicate) is
used, the security indicator light illumi-
nates. For details about the immobilizer
system, refer to "Immobilizer" P108.
NOTE The security indicator light remains
off in the followi ng conditions. It
means that the matching of the ID code
is completed and the immobilizer
system is deactivated, and it does not
indicate a malfunction. - While the engine is running
- The push-button ignition switch
has been turned to the “ON” or
“ACC” position and the driver’s
door has not been opened or closed
 Even if a malfunction occurs, such
as the security indicator light flashes irregularly, it will not affect the func-
tionality of the immobilizer system.
■
Drive Mode Indicator Light (If
Equipped)Drive mode indicator light
1) Sport mode
2) Snow modeThis light indicates the current drive mode.
For details of drive mode, refer to "Driving
Mode Select Switch (If Equipped)"
 P241.
2
1
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Combination Meter Display (Color TFT)
158*1: If equipped
*2: For details about EyeSight system, refer to the Owner’s Manual supplement for the EyeSight system.
Item
SettingsPage reference for
the vehicle system
operation
EyeSight
*1
Acquisition Sound ON/OFF
*2
Start AlertON/OFF
Accel Lv. Lv.1 (Eco)/Lv.2 (Comfort)/Lv.3 (Standard)/Lv.4 (Dynamic)
Select Drive Lane Right Lane/Left Lane
Units km, km/h, l/100km / miles, MPH, MPG127, 151 and *2
Warning Volume *1
Max/Mid/Min 277 and *2
Screen Settings Startup Scrn
ON/OFF -
GSI (MT models) ON/OFF 234
REV. Indicator
ON/OFF
130
RPM **00rpm
Buzzer ON/OFF
Car Settings Keyless Entry
Audible Signal
*1
ON/OFF
105 and 110
Hazard Flasher ON/OFF 106 and 110
Driver Door Unlock Driver Door Only/All 100
Defogger 15 minutes/Continuous 185
Interior Light 7.5 seconds/15 seconds/30 seconds 212
Auto Light Sensor Light Sensitivity Min/Low/Mid/High/Max
174
Wiper Link ON/OFF 175
Welcome Lighting Approaching Time Set 30 sec
onds/60 seconds/90 seconds/OFF
175
Leaving Time Set 30 seconds/60 seconds/90 seconds/OFF
1-Touch LN CHGR ON/OFF 182
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Center Information Display (CID)
166The setting adjustments to the following items can be manually changed to meet your personal requirements.
Item
Available settingsPage refer-
ence for the
vehicle sys-
tem operation Page refer-
ence for the
setting proce- dure
1st menu
2nd menu 3rd menu
Car EyeSight
* 1
Pre-Collision Braking
Setting ON/Setting OFF
*2
―
Lane Departure Warning ON/OFF
Cruise Control Acceleration
Characteristics
Lv.1 (Eco)/Lv.2 (Comfort)/Lv.3
(Standard)/Lv.4 (Dynamic)
Lead Vehicle Acquisition
Sound ON/OFF
Lead Vehicle Moving Monitor ON/OFF
Select Drive on Left/Drive on
Right Right Lane/Left Lane
Reverse Automatic Braking
*1
Sonar Audible Alarm ON/OFF 277170
Automatic Braking ON/OFF 277170
Keyless Entry System Audible Signal
*1
ON/OFF
105 and 110 170
Hazard Warning Flasher ON/OFF 106 and 110 170
Driver Door Unlock
*1
Driver Door Only/All 100170
Defogger ―15 minutes/Continuous 185170
Interior Light ―7.5 seconds/15 seconds/30
seconds 212
170
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Light Control Switch
175
Instruments and Controls3
– CONTINUED –
automatically be turned off after approxi-
mately 20 minutes.
If a door is opened or closed, the battery
saving function will temporarily be
canceled and the lights will automatically
be turned off after approximately 20
minutes.▼ Auto-on/off wiper-linked headlights
While the light control switch is in the
“AUTO” position, the headlights will auto-
matically turn on when the windshield
wipers operate several times. The head-
lights will automatica lly turn off approxi-
mately 1 minute after the wiper stops.
The ON/OFF setting of this function can
be changed by operating the combination
meter display (color TFT) or the center
information display. For details, refer to
"Settings Display" P157 or "Car
settings" P165. Also, the setting can be
changed by a SUBARU dealer. Consult
your SUBARU dealer for details.
▼ Welcome lighting function
The welcome lighting function turns on the
low beam headlight for smooth
approaching to or exiting from the vehicle
at night or in a dark place.
The function is activated while all of the
following conditions are met. 
The light control swit ch is in the “AUTO”
position
 It is dark enough to turn on the auto on/
off headlights
NOTEIf the engine is turn ed off after turning
off the light swit ch, the welcome
lighting function may not operate (for
Canada models).
▽ When approaching
While the welcome lighting function is acti-
vated, the low beam headlights will auto-
matically illuminate when unlocking the
doors by using the remote keyless entry
system.
The low beam headlights will remain illu-
minated for 30 seconds
*1 and then turn
off. However, if any of the following opera-
tions is done, the low beam headlights will
turn off.
 The ignition switch is turned to the “ON”
position.
 The doors are locked.
 The light control switch is turned to a
position other than “AUTO”. ▽
When exiting
While the welcome lighting function is acti-
vated, the low beam headlights will remain
illuminated even when the push-button
ignition switch is turned to the “OFF”
status.
The low beam headlights will turn off
under any of the following conditions.
 30 seconds have passed since the
door is opened and closed.
*1
 The light control switch is turned to a
position other than “AUTO”.
 The locking procedure is performed
twice. When performing the unlocking
procedure after performing the locking
procedure, perform the locking procedure
twice again.*1: The setting for the period of time in which
the low beam headlights remain on by the
welcome lighting function can be changed
by a SUBARU dealer. Contact your
SUBARU dealer for details. Also, you can
change the setting by operating the combi-
nation meter display (color TFT) or the
center information display. For details, refer
to "Settings Display" P157 or "Car
settings"  P165.
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Starting and Operating7
Starting and Operating
7-1. Fuel.......................................................................223
Fuel Requirements .......................................................223
Fuel Filler Lid and Cap .................................................224
7-2. State Emission Testing (U.S. Only) ...................227
7-3. Preparing to Drive ...............................................228
7-4. Starting and Stopping Engine ...........................229
Safety Precautions ............................................ ...........229
Operating Range for Push-Button Start System .......229
General Precautions When St arting Engine ..............229
Starting Engine .............................................................230
Stopping Engine ...........................................................232
When Access Key Fob Does Not Operate 
Properly.......................................................................232
Steering Lock ................................................................232
7-5. Manual Transmission .........................................233
Shifting Speeds ............................................................234
Driving Tips ...................................................................235
7-6. Automatic Transmission ....................................235
Select Lever ..... .......................................... ...................236
Adaptive Control...........................................................237
Shift Lock Function ......................................................238
Selection of Manual Mode ...........................................239
Driving Tips ...................................................................240
7-7. Driving Mode Select Switch (If Equipped) ........241
Normal Mode .................................................................241
Sport Mode ....................................................................241
Snow Mode....................................................................241
Driving Mode Select Switch.........................................241
7-8. Active Sound Control .........................................242
7-9. Power Steering ....................................................242
7-10. Braking...............................................................243
Braking Tips ..................................................................243 Brake System ............................................................... 244
Disc Brake Pad Wear Warning Indicators ................. 245
7-11. ABS (Anti-Lock Brake System) ........................245
ABS Self-Check............................................................ 245
ABS Warning Light ...................................................... 245
7-12. Electronic Brake Force Distribution (EBD)
System ...............................................................246
EBD System Malfunctions .......................................... 246
7-13. Vehicle Stability Control (VSC)/TRAC 
System ...............................................................247
Vehicle Stability Control (VSC) System ..................... 247
TRAC System ............................................................... 247
Vehicle Stability Control (VSC) System Monitor....... 248
Vehicle Stability Control (VSC) OFF Switch .............. 248
7-14. TRACK Mode .....................................................250
TRACK Mode ................................................................ 250
Selecting TRAC Mode and Ve hicle Stability Control
(VSC) Mode ............................................................... 251
7-15. Tire Pressure Monitoring System (TPMS) 
(If Equipped) ......................................................251
Certification for the Transmitter ................................. 253
Certification for the Receiver...................................... 253
TPMS Screen ................................................................ 254
Initializing the Tire Pressure Monitoring System ..... 254
How to Initialize the Tire Pressure Monitoring 
System (If Equipped) ................................................. 254
If You Press the Tire Pressure Monitoring Reset 
Switch Accidentally................................................... 254
Initialization Procedure ............................................... 254
When Initialization of the Tire Pressure Monitoring System has Failed ..................................................... 255
Registering ID Codes .................................................. 255
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Fuel
224need to add any fuel system cleaning
agents to your fuel tank.
Many gasolines are now blended with
materials called oxygenates. Use of these
fuels can also help keep the air cleaner.
Oxygenated blend fuels, such as ethanol
(ethyl or grain alcohol) may be used in
your vehicle, but should contain no more
than 15% ethanol for the proper operation
of your SUBARU.
Do not use any gasoline that contains
more than 15% ethanol, including from
any pump labeled E30, E50 or E85 (which
are only some examples of fuel containing
more than 15% ethanol).
In addition, some gasoline suppliers are
now producing reformulated gasolines,
which are designed to reduce vehicle
emissions. SUBARU approves the use of
reformulated gasoline.
If you are not sure what the fuel contains,
you should ask your service station oper-
ators if their gasolines contain detergents
and oxygenates and if they have been
reformulated to reduce vehicle emissions.
As additional guidance, only use fuels
suited for your vehicle as explained in the
following description.
 Fuel should be unleaded and have an
octane rating no lower than that specified
in this manual. 
Methanol (methyl or wood alcohol) is
sometimes mixed with unleaded gasoline.
Methanol can be used in your vehicle
ONLY if it does not exceed 5% of the fuel
mixture AND if it is accompanied by suffi-
cient quantities of the proper cosolvent
and corrosion inhibitors required to
prevent damage to the fuel system. Do not
use fuel containing methanol EXCEPT
under these conditions.
 If undesirable driveability problems are
experienced and you suspect they may be
fuel related, try a different brand of gaso-
line before seeking service at your
SUBARU dealer.
 Fuel system damage or driveability
problems which result from the use of
improper fuel are not covered under the
SUBARU Limited Warranty.
■ Fuel Filler Lid and Cap▼ Locations of the fuel filler lid▼RefuelingOnly one person should be involved in
refueling. Do not allow others to approach
the area of the vehicl e near the fuel filler
pipe while refueling is in progress.
Be sure to observe any other precautions
that are posted at the service station.
1. Stop the vehicle, turn the ignition
switch to the “OFF” position and turn off all
the other electrical components.
2. Push the rear side of the fuel filler lid.
If the fuel filler lid is locked, perform one of
the operations below.
Press the “ ” button on the key fob.
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Fuel
2266. Stop filling the tank after the fuel filler
pump automatically stops. Do not add any
more fuel.
7. Put the cap back on and turn it clock-
wise until you hear a clicking noise. Be
certain not to catch the tether under the
cap while tightening.
8. Close the fuel filler lid completely.
NOTE You will see the “ ” sign in the
fuel gauge. This indicates that the fuel
filler lid is located on the right side of
the vehicle.
 If the fuel filler cap is not tightened
until it clicks or if the tether is caught
under the cap, the CHECK ENGINE
warning light/malfunction indicator
light may illuminate. Refer to "CHECK
ENGINE Warning Light/Malfunction
Indicator Light" P136.
 To lock the fuel filler lid, perform one
of the operations below. However if
these operations are performed when
the fuel filler lid is open, the fuel filler
lid will not lock when it is subsequently
closed. - Press the “ ” button on the key
fob.
- Press the lock side of the power
door locking switch.
WARNING
 When refueling, insert the fuel
nozzle securely into the fuel filler
pipe. If the nozzle is lifted or not
fully inserted, its automatic stop-
ping mechanism may not func-
tion, causing fuel to overflow the
tank and creating a fire hazard. Stop refueling when the auto-
matic stop mechanism on the fuel
nozzle activates. If you continue
to add fuel, temperature changes
or other conditions may cause
fuel to overflow from the tank and
create a fire hazard.
CAUTION
Make sure that the cap is tightened
until it clicks to prevent fuel spillage
in the event of an accident.
CAUTION
Do not let fuel sp ill on the exterior
surfaces of the vehicle. Because
fuel may damage th e paint, be sure
to wipe off any spilled fuel quickly.
Paint damage caused by spilled fuel
is not covered under the SUBARU
Limited Warranty.
CAUTION
 Never add any cleaning agents to
the fuel tank. Th e addition of a
cleaning agent may cause
damage to the fuel system. After refuelin g, turn the cap to the
right until it clicks to ensure that it
is fully tightened. If the cap is not
securely tightened, fuel may leak
out while the vehicle is being
driven or fuel spillage could
occur in the event of an accident,
creating a fire hazard. Do not let fuel spill on the exterior
surfaces of the vehicle. Because
fuel may damage the paint, be
sure to wipe off any spilled fuel
quickly. Paint damage caused by
spilled fuel is not covered under
the SUBARU Limited Warranty. Always use a genuine SUBARU
fuel filler cap. If you use the
wrong cap, it may not fit or have
proper venting and your fuel tank
and emission control system may
be damaged. It could also lead to
fuel spillage and a fire.
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Starting and Stopping Engine
231
Starting and Operating7
– CONTINUED –
After the engine starts, the engine
speed will be kept high.
 Do not shift the select lever (AT
models) while the starter is cranking.1) Push-button ignition switchWhen the push-button ignition switch is
pressed while depressing the clutch pedal
(MT models) or the brake pedal (AT
models), the engine will start. The starting
procedure for the engine is as follows.
▼ MT models
1. Carry the access key fob, and sit in the
driver’s seat.
2. Apply the parking brake.
3. Shift the shift lever to neutral.
4. Depress the brake pedal and clutch
pedal.
5. While depressing the clutch pedal,
press the push-button ignition switch.NOTEIn case the engine does not start by
the normal engine start procedure,
move the shift lever to the neutral
position, and switch the power to
“ACC”. Depress the clutch pedal, and
press the push-butto n ignition switch
for at least 15 seconds. The engine
may start. Only use this engine start
procedure in case of emergency. ▼
AT models
1. Carry the access key fob, and sit in the
driver’s seat.
2. Apply the parking brake.
3. Make sure the select lever is in the “P”
position. The engine can also start when
the select lever is in the “N” position,
however, for safety reasons, start in the
“P” position.
4. Depress the brake pedal.
5. While depressing the brake pedal,
press the push-button ignition switch.NOTE In case the engine does not start by
the normal engine start procedure,
move the select lever to the “P” posi-
tion, and switch th e power to “ACC”.
Depress the brake pedal, and press the
push-button ignition switch for at least
15 seconds. The engine may start. Only
use this engine start procedure in case
of emergency.
 When the engine is not started, the
brake pedal may feel stiff. In such a
case, depress the brake pedal more
forcefully than usual. Press the push-
button ignition switch to start the
engine.
1
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Starting and Stopping Engine
232■Stopping Engine1. Stop the vehicle completely.
2. Move the shift lever to neutral (MT
models) or select leve r to the “P” position
(AT models).
3. Press the push-button ignition switch.
The engine will stop, and the power will be
switched off.
NOTEAlthough you can stop the engine by
operating the push -button ignition
switch, do not stop the engine during
driving except in an emergency.■ When Access Key Fob Does
Not Operate ProperlyRefer to "Access Key Fob – If Access Key
Fob Does Not Operate Properly" P325.■ Steering LockAfter stopping the engine and any door is
opened, the steering wheel will be locked
due to the steering lock function.
When the engine is restarted, the steering
lock will be automatically released.
WARNING
 Do not touch the push-button
ignition switch during driving.
When the push-button ignition
switch is operated as follows, the
engine will stop.–The switch is pressed and held
for 2 seconds or longer.–The switch is pressed briefly 3
times or more in succession.When the engine stops, the brake
booster will not function. A
greater foot pressure will be
required on the brake pedal.The power steering system will
not operate either. A greater
force will be required to steer,
and it may result in an accident.
 If the engine stops during driving,
do not operate the push-button
ignition switch or open any of the
doors until the vehicle is stopped
in a safe location. It is dangerous
because the steering lock may be
activated. Stop the vehicle in a
safe place, and contact a
SUBARU dealer immediately.
CAUTION
For AT models:Do not stop the engine while the
select lever is in a position other
than the “P” position. If the engine is stopped while the
select lever is in a position other
than the “P” position, the power
will be in “ACC”. If the vehicle is
left in this cond ition, the battery
may be discharged.
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Reverse Automatic Braking (RAB) System (If Equipped)
286■Reverse Automatic Braking
(RAB) System ON/OFF
SettingWhile the select lever is shifted to the “R”
position, the below functions of the
Reverse Automatic Braking (RAB) system
can be set by operating the center infor-
mation display.1) ON setting key of Automatic Braking
function
2) OFF setting key of Automatic Braking
function
3) ON setting key of the Sonar Audible
Alarm function
4) OFF setting key of the Sonar Audible
Alarm functionWhen the ON setting key is shown, the
corresponding setting is ON. Touch the ON setting key to turn the

setting OFF.
When the OFF setting is shown, the corre-
sponding setting is OFF.
Touch the OFF setting key to turn the
setting ON.
When the Automatic Braking function are
turned OFF, the following indicator(s) will
illuminate.
The RAB OFF indicator will turn off when
the corresponding function is turned ON.
NOTEWhen the settings cannot be changed,
the ON/OFF setting key will be grayed
out.
Also, the following settings can be
changed by operating the center informa-
tion display. 
Warning volume
 Sonar Audible Alarm
 Automatic Braking
For details, refer to "Car settings" P165.
■ RAB Warning IndicatorIf the Reverse Automatic Braking (RAB)
system malfunctions, the above indicator
illuminates on the combination meter.
Contact the nearest SUBARU dealer for
details.■ Handling of the Sonar
SensorsThe 4 sonar sensors are located in the
rear bumper. To ensure the proper opera-
tion of the Reverse Automatic Braking
(RAB) system, observe the following
precautions.
12
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