service SUBARU BRZ 2023 User Guide

Preparing to Drive
228have implemented emission inspection of
the OBDII system.
 The inspection of the OBDII system
consists of a visual operational check of
the “ CHECK ENGINE ” warning light/
malfunction indicator light (MIL) and an
examination of the OBDII system with an
electronic scan tool.
 A vehicle passes
the OBDII system
inspection if proper operation of the
“ CHECK ENGINE ” warning light is
observed, there are no stored diagnostic
trouble codes, and the OBDII readiness
monitors are all complete.
 A vehicle fails
the OBDII inspection if
the “ CHECK ENGINE ” warning light is not
properly operating (light is illuminated or is
not working due to a burned out bulb) or
there is one or more diagnostic trouble
codes stored in the vehicle’s computer.
 A state emission in spection may reject
(not pass or fail) a vehicle if the number of
OBDII system readiness monitors “ NOT
READY ” is greater than one. If the
vehicle’s battery has been recently
replaced or disconnected, the OBDII
system inspection may indicate that the
vehicle is not ready for the emission test.
Under this condition, the vehicle driver
should be instructed to drive his/her
vehicle for a few days to reset the readi-
ness monitors and return for an emission
re-inspection. 
Owners of rejected or failing vehicles
should contact their SUBARU Dealer for
service.
7-3. Preparing to DriveYou should perform the following checks
and adjustments every day before you
start driving.
1. Check that all windows, mirrors, and
lights are clean and unobstructed.
2. Check the appearance and condition
of the tires. Also check tires for proper
inflation.
3. Look under the vehicle for any sign of
leaks.
4. Check that no small animals enter the
engine compartment.
5. Check that the hood and trunk are fully
closed.
6. Check the adjustment of the seat.
7. Check the adjustment of the inside
and outside mirrors.
8. Fasten your seatbelt. Check that your
passengers have fastened their seatbelts.
9. Check the operation of the warning
and indicator lights when the ignition
switch is turned to the “ON” position.
10. Check the gauges, indicator and
warning lights after starting the engine.
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Tire Pressure Monitoring System (TPMS) (If Equipped)
253
Starting and Operating7
– CONTINUED –
■Certification for the ReceiverFCC ID: HYQ23ABGNOTEThis device complies with part 15 of
the FCC Rules. Operation is subject to
the following two conditions: (1) This
device may not cause harmful interfer-
ence, and (2) this device must accept
any interference received, including
interference that may cause unde-
sired operation.
FCC WARNING
Changes or modifications not
expressly approved by the party
responsible for compliance could void
the user’s authority to operate the
equipment.
■ Certification for the Trans -
mitter U.S.-spec. models
FCC ID: PAXPMVE000NOTEThis device complies with part 15 of
the FCC Rules. Operation is subject to
the following two co nditions: (1) This
device may not cause harmful interfer-
ence, and (2) this device must accept
any interference received, including
interference that may cause unde-
sired operation.
FCC WARNING
Changes or modifications not
expressly approved by the party
responsible for compliance could void
the user’s authority to operate the
equipment.
 Mexico-spec. models
MEX: RLVPAPM17-1337
 When a tire is repaired with liquid
sealant, the tire pressure warning
valve and transmitter may not
operate properly. If a liquid
sealant is used, contact your
nearest SUBARU dealer or other
qualified service shop as soon as
possible. Make sure to replace
the tire pressure warning valve
and transmitter when replacing
the tire. You may reuse the wheel
if there is no damage to it and if
the sealant residue is properly
cleaned off. Do not inject any tire
liquid or aerosol tire sealant into
the tires, as this may cause a
malfunction of the tire pressure
sensors. If the light illuminates
steadily after blinking for approx-
imately one minute, promptly
contact a SUBARU dealer to have
the system inspected.
CAUTION
Do not place metal film or any metal
parts under the driver’s seat. This
may cause poor reception of the
signals from the tire pressure sen-
sors, and the tire pressure monitor-
ing system will not function
properly.
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Periodic Inspections
2928-5. Periodic InspectionsTo keep your vehicle in the best condition
at all times, always have the recom-
mended maintenance services listed in
the maintenance schedule in the
“Warranty and Maintenance Booklet”
performed at the specified time or mileage
intervals.
8-6. Driving in Foreign Coun-triesWhen planning to use your vehicle in
another country:
 Confirm the availability of the correct
fuel. Refer to "F uel Requirements"
 P223.
 Comply with all regulations and
requirements of each country.
8-7. Driving Tips
WARNING
 Always maintain a safe driving
speed according to the road and
weather conditions in order to
avoid having an accident on a
sharp turn, during sudden
braking or under other similar
conditions. When replacing or installing
tire(s), all four tires must be the
same for the following items.
(a) Size(b) Speed symbol(c) Load index(d) Circumference(e) Construction(f) Manufacturer(g) Brand (tread pattern)(h) Degrees of wearFor items (a) to (c), you must
obey the specification that is
printed on the ti re inflation pres-
sure label. The tire inflation pres-
sure label is located on the
driver’s center pillar.
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Flat Tires
30612. Put on the spare tire. Replace the
wheel nuts. Tighten them by hand.
13. Turn the jack handle counterclockwise
to lower the vehicle. 14. Use the wheel nut wrench to securely

tighten the wheel nuts to the specified
torque, following the tightening order in
the illustration.
For the wheel nut tightening torque, refer
to "Tires" P385. Never use your foot on
the wheel nut wrench or a pipe extension
on the wrench because you may exceed
the specified torque. Have the wheel nut
torque checked at the nearest automotive
service facility.
1) Support holder15. Models with spare tire: Store the flat
tire in the spare tire compartment. Install
with the support holder facing upward and
secure the flat tire by firmly tightening the
attaching bolt.
NOTEIf you cannot fix the fl at tire firmly, try
turning the support holder upside
down.
16. Store the jack, jack handle and wheel
nut wrench in their storage locations.■ Sealing a Flat Tire (Models
with the Flat Tire Repair Kit)
CAUTION
If the threaded part was damaged,
you should immediately contact
your SUBARU dealer.
WARNING
Do not use oil or grease on the
wheel studs or nuts when the spare
tire is installed. This could cause
the nuts to become loose and lead
to an accident.

14
25
3
600192
1901296
WARNING
Never place a tire or tire changing
tools in the passenger compartment
after changing wheels. In a sudden
stop or collision, loose equipment
could strike occupants and cause
injury. Store the tire and all tools in
the proper place.
WARNING
Read these instructions and
warnings carefully before sealing a
flat tire.
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Flat Tires
3148. After driving for 10 minutes or 3 miles
(5 km), whichever comes first, stop the vehicle in a safe place to recheck the air

pressure (see step 4).
If necessary, fill the tire with air to the
appropriate air pressure again and drive
carefully to the nearest SUBARU dealer
for tire, valve stem and sealant bottle
replacement.
NOTEConnect the air compressor only to
the tire valve.
Before the tire is removed from the rim,
inform your SUBARU dealer or other tire
dealer that the tire contains sealant.
NOTENew sealant and replacement parts
can be purchased from your autho-
rized repair shop or SUBARU dealer,
and they should also be installed into
the kit by a specialist. Empty sealant
bottles and replacement parts must be
returned to your SUBARU dealer or
disposed of in compliance with local
waste disposal regulations.▼ Technical data of air compressor
If heavy vibrations, unsteady
steering behavior or noises occur
while driving, reduce your speed
and drive with caution to a loca-
tion where it is safe for you to
stop the vehicle. Recheck the tire
and its pressure. If the tire pres-
sure is in the red zone of the air
gauge or if there are any cracks,
bumps or similar tire damage
visible, temporary repairs cannot
be performed with the repair kit.
We recommend that you consult
with your SUBARU dealer or road
service provider.
psi40 40
20 2030 30
0 0 0 0
901089
CAUTION
 If the air pressure is in red zone of
the air gauge, the kit did not
successfully seal the puncture. In
this case, please stop driving and
contact your SUBARU dealer for
help. Do not drive your vehicle with the
sealed tire for more than 125
miles (200 km). Failure to replace
the valve stem may result in air
leakage at the valve stem.
CAUTION
The sealant bottle and speed limit
label need to be replaced after
using the flat ti re repair kit.Line voltage DC 12 V
Operating voltage DC 10 – 15 V
Amperage Max. 10 A
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Flat Tires
315
In Case of Emergency9
– CONTINUED –
■Tire Pressure Monitoring
System (TPMS) (If Equipped)Low tire pressure warning lightThe tire pressure monitoring system
provides the driver with the warning
message indicated by sending a signal
from a sensor that is installed in each
wheel when tire pressure is severely low.
The tire pressure mo nitoring system will
activate only when the vehicle is driven.
Also, this system may not react immedi-
ately to a sudden drop in tire pressure (for
example, a blow-out caused by running
over a sharp object).
702780
WARNING
 If the low tire pressure warning
light illuminates while driving,
never brake suddenly. Instead,
perform the following procedure.
Otherwise an accident involving
serious vehicle damage and
serious personal injury could
occur.
(1) Keep driving straight ahead
while gradually reducing
speed.(2) Slowly pull off the road to a
safe place.(3) Check the pressure for all
four tires and adjust the pres-
sure to the CO LD tire pres-
sure shown on the vehicle
placard on the center pillar on
the driver’s side.If this light still illuminates while
driving after adjusting the tire
pressure, a tire may have signifi-
cant damage and a fast leak that
causes the tire to lose air rapidly.
If you have a flat tire, replace it
with a spare tire as soon as pos-
sible.
 When a spare tire is mounted or a
wheel rim is replaced without the
original pressure sensor/trans-
mitter being transferred, the low
tire pressure warning light will
illuminate steadily after blinking
for approximately one minute.
This indicates the TPMS is unable
to monitor all four road wheels.
Contact your SUBARU dealer as
soon as possible for tire and
sensor replacement and/or
system resetting. When a tire is repaired with liquid
sealant, the tire pressure warning
valve and transmitter may not
operate properly. If a liquid
sealant is used, contact your
nearest SUBARU dealer or other
qualified service shop as soon as
possible. Make sure to replace
the tire pressure warning valve
and transmitter when replacing
the tire. You may reuse the wheel
if there is no damage to it and if
the sealant residue is properly
cleaned off.
If the light illuminates steadily
after blinking for approximately
one minute, promptly contact a
SUBARU dealer to have the sys-
tem inspected.
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Towing
3209-6. TowingIf towing is necessary, SUBARU recom-
mends it be done by your SUBARU dealer
or a commercial towing service.
■ Towing Hook and Tie-Down
Hooks/HolesThe towing hooks should be used only in
an emergency.
SUBARU recommends towing be done
by your SUBARU dealer or a commer-
cial towing service.
Front towing hook:
1. Take out the screwdriver, towing hook
and wheel nut wrench from the under-floor
storage compartment.
1) Upper cover
2) Lower cover2. Insert a screwdriver, with its tip covered with tape or a cloth to prevent damage
to the bumper, into the cutout of the
cover and pry up to separate the upper
WARNING
Never tow vehicles with the front
wheels raised off the ground while
the rear wheels are on the ground,
or with the rear wheels raised off
the ground while the front wheels
are on the ground.
This will cause the vehicle to dam-
age or cause an accident.
901277
CAUTION
 Use only the specified towing
hook and tie-down hooks/holes.
Never use suspension parts or
other parts of the body for towing
or tie-down purposes. Never use the tie-down hole
closest to the muffler under the
vehicle for towing purposes.
1
2
901202
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Maintenance and Service11
Maintenance and Service
11-1. Maintenance Schedule .....................................339
11-2. Maintenance Precautions.................................339
Before Checking or Servicing in the Engine
Compartment ..............................................................340
When Checking or Servicing in the Engine Compartment ..............................................................340
When Checking or Servicing in the Engine Compartment While the Engine Is Running ............341
11-3. Maintenance Tips ..............................................341
Removing and Reinstalling Clips................................341
11-4. Engine Hood ......................................................343
11-5. Engine Compartment Overview.......................345
11-6. Engine Oil ..........................................................346
Engine Oil Consumption..............................................346
Checking the Oil Level .................................................346
Changing the Oil and Oil Filter ....................................347
Recommended Grade and Viscosity ..........................347
Synthetic Oil..................................................................348
11-7. Cooling System .................................................348
Cooling Fan, Hose and Connections ..........................348
Engine Coolant .............................................................349
11-8. Air Cleaner Element ..........................................350
Replacing the Air Cleaner Element .............................350
11-9. Spark Plugs .......................................................352
Recommended Spark Plugs ........................................352
11-10. Drive Belt .........................................................352
11-11. Automatic Transmission Fluid ......................352
Recommended Grade and Viscosity ..........................352
11-12. Differential Gear Oil ........................................353
Recommended Grade and Viscosity ..........................353
11-13. Manual Transmission Oil ...............................353
Recommended Grade and Viscosity ..........................353
11-14. Brake Fluid ......................................................353
Checking the Fluid Level ............................................ 353
Recommended Brake Fluid ........................................ 354
11-15. Clutch Fluid (MT models) ...............................354
Checking the Fluid Level ............................................ 354
Recommended Clutch Fluid ....................................... 355
11-16. Brake Booster .................................................355
11-17. Brake Pedal .....................................................356
11-18. Clutch Pedal (MT models) ..............................356
11-19. Replacement of Brake Pad and Lining..........356
Breaking-in of New Brake Pads and Linings ............ 357
11-20. Parking Brake Stroke ......................................357
11-21. Tires and Wheels ............................................358
Types of Tires .............................................................. 358
Tire Pressure Monito ring System (TPMS) 
(If Equipped)............................................................... 358
Tire Inspection ............................................................. 360
Tire Pressures and Wear............................................. 361
Wheel Balance ............................................................. 363
Wear Indicators ............................................................ 363
Rotational Direction of Tires....................................... 364
Tire Rotation................................................................. 364
Tire Replacement ...... ............................. ...................... 365
Wheel Replacement ..................................................... 365
11-22. Alloy Wheels ....................................................366
11-23. Windshield Washer Fluid ...............................366
11-24. Replacement of Wiper Blades........................367
Windshield Wiper Blade Assembly ............................ 368
Windshield Wiper Blade Rubber ................................ 369
11-25. Battery ..............................................................370
11-26. Fuses ................................................................371
11-27. Installation of Acce ssories ............................373
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Maintenance and Service11-28. Replacing Bulbs ..............................................373
Headlights ..................................................................... 373
Backup Light ................................................................ 373
Trunk Light ................................................................... 374Other Bulbs ................................................................... 374
Adjusting Headlight Aim.............................................. 374
11-29. Replacing Battery........................................... 375
Replacing Battery of Access Key Fob........................ 376
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Maintenance Schedule
339
Maintenance and Service11
– CONTINUED –
11-1. Maintenance ScheduleU.S. models
The scheduled maintenance items
required to be serviced at regular intervals
are shown in the “Warranty and Mainte-
nance Booklet”. For details, read the
separate “Warranty and Maintenance
Booklet”.
Canada models
The scheduled maintenance items
required to be serviced at regular intervals
are shown in the “Warranty and Service
Booklet”. For details, read the separate
“Warranty and Service Booklet”.
Except for U.S. and Canada models
Some items of your vehicle are required to
be serviced at scheduled intervals. For
details about your maintenance schedule,
read the separate “Warranty and Mainte-
nance Booklet”.
11-2. Maintenance Precau -tionsWhen maintenance and service are
required, it is reco mmended that all work
be done by an authorized SUBARU
dealer.
If you perform maintenance and service
by yourself, you should familiarize your-
self with the information provided in this
section on general maintenance and
service for your SUBARU.
Incorrect or incomplete service could
cause improper or unsafe vehicle opera-
tion. Any problems caused by improper
maintenance and service performed by
you are not eligible for warranty coverage.
WARNING
 Always select a safe area when
performing maintenance on your
vehicle. Always be very careful to avoid
injury when working on the
vehicle. Remember that some of
the materials in the vehicle may
be hazardous if improperly used
or handled, for example, battery
acid.
 Your vehicle should only be
serviced by persons fully compe-
tent to do so. Serious personal
injury may result to persons not
experienced in servicing vehi-
cles. Always use the proper tools and
make certain that they are well
maintained. Never get under the vehicle
supported only by a jack. Always
use safety stands to support the
vehicle. Never keep the engine running in
a poorly ventilated area, such as a
garage or other closed areas. Do not smoke or allow open
flames around the fuel or battery.
This will cause a fire. Because the fuel system is under
pressure, replacement of the fuel
filter should be performed only by
your SUBARU dealer. Wear adequate eye protection to
guard against getting oil or fluids
in your eyes. If something does
get in your eyes, thoroughly wash
them out with clean water.
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