maintenance SUBARU BRZ 2023 User Guide

Center Information Display (CID)
171
Instruments and Controls3
– CONTINUED –
5.→“Add”
6. Enter the name.
7. →“Next” 8. Enter the date.
9.
→“OK”
NOTEA maximum of 5 birthdays can be
stored.
▽ Anniversary List
The procedure for setting an anniversary
is the same as "Birthday List" P170,
except that in step 4 “Anniversary List” is
selected. ▼
Maintenance
Maintenance reminders can be set.
Engine oil setting:
1. Touch (Maintenance).
2.→ (Engine Oil)
3. Select “Notificatio n Date” or “Notifica-
tion Distance” of the reminder.
4. →“Set”
5. →
Oil Filter setting:
The setting procedure is the same as
“Engine Oil” setting, but touch the “Oil
Filter” item in step 2.
Tires setting:
The setting procedure is the same as
“Engine Oil” setting, but touch the “Tires”
item in step 2.
306999307000
307001
XXXX
306164
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Clock
172Maintenance Schedule setting:
The setting procedure is the same as
“Engine Oil” setting, but touch the “Mainte-
nance Schedule” item in step 2.NOTE Touch “Reset” to reset each setting.
 Touch “Update” to revert to the
default value.
3-9. ClockFor models with a genuine SUBARU
audio system, the clock can be adjusted
using either auto mode or manual mode.■ Setting the Clock Manually1. Turn the ignition switch to the “ON”
position.
2. Press (HOME).
3. Touch (Settings).
4. →“General”
5. →“Clock”
6. →“Time Setting” 7.
→“Manual”
8. → or
9. →“OK”
NOTEThe clock setting screen can also be
displayed by touching the clock on the
status bar.
306807
306875
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Air Filtration System
205
Climate Control4
– CONTINUED –
■Cooling and Dehumidifying
in High Humidity and Low
Te mperature Weather Condi -
tionUnder certain weather conditions (high
relative humidity, lo w temperatures, etc.)
a small amount of water vapor emission
from the air outlets may be noticed. This
condition is normal and does not indicate
any problem with the air conditioning
system.■ Air Conditioner Compressor
Shut-Off Whe n Engine Is
Heavily LoadedTo improve acceleration and gas mileage,
the air conditio ner compressor is
designed to temporarily shut off during air
conditioner operation whenever the accel-
erator is fully depressed such as during
rapid acceleration or when driving on a
steep upgrade.
■ Refrigerant for Your Climate
Control Syste m1) Air conditioner labelYour air conditioner uses ozone friendly
refrigerant R-1234yf (HFO-1234yf).
Before adding, changing or checking the
refrigerant, check the air conditioner label
in the location shown in the illustration to
confirm the type of refrigerant is used in
your vehicle.
Consult your SUBARU dealer for service.
Repairs needed as a result of using the
wrong refrigerant are not covered under
warranty.
4-7. Air Filtration SystemYour vehicle’s air conditioning system is
equipped with an air filtration system.
Replace the cabin air filter according to
the replacement schedule found in the
“Warranty and Maintenance Booklet”.
This schedule should be followed to main-
tain the filter’s dust collection ability.
Under extremely dusty conditions, the
filter should be replaced more frequently.
Have your filter checked or replaced by
your SUBARU dealer. For replacement,
use only a genuine SUBARU air filter kit.NOTEThe filter can influence the air condi-
tioning, heating and defroster perfor-
mance if not properly maintained.
1
403493
CAUTION
Contact your SUBARU dealer if the
following occurs, even if it is not yet
time to change the filter. Reduction of the airflow through
the vents. Windshield gets easily fogged or
misted.
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State Emission Testing (U.S. Only)
227
Starting and Operating7
– CONTINUED –
▼If the fuel filler lid cannot be opened
If the fuel filler lid cannot be opened due to
a malfunction or a dead battery, it can be
opened from the trunk. 1. Remove the access cover at the right-
side of the trunk trim.
1) Lever2. Push the yellow lever to unlock the fuel
filler lid.
7-2. State Emission Testing (U.S. Only)California and a number of federal states

have Inspection/Maintenance programs
to inspect your vehicle’s emission control
system. If your vehicle does not pass this
test, some states may deny renewal of
your vehicle’s registration.
Your vehicle is equipped with a computer
that monitors the performance of the
engine’s emission control system. Certi-
fied emission inspectors will inspect the
On-Board Diagnostic (OBDII) system as
part of the state emission inspection
process. The OBDII system is designed to
detect engine and transmission problems
that might cause the vehicle emissions to
exceed allowable limits. OBDII inspec-
tions apply to all 1996 model year and
newer passenger cars and trucks. Over
30 states plus the District of Columbia
Immediately put fuel in the tank
whenever the low fuel warning
light illuminates. Engine misfires
as a result of an empty tank could
cause damage to the engine.
Continuing to operate your
vehicle at an extremely low fuel
level may result in a reduction of
engine performance.
702789
1
702790
CAUTION
Resultant vehicle damage due to
improper testing is not covered
under the SUBARU Limited War-
ranty and is the responsibility of the
state inspection program or its con-
tractors or licensees.
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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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In Case of Emergency9
In Case of Emergency
9-1. If You Park Your Vehicle in an Emergency.......302
9-2. Maintenance Tools..............................................302
Models with Flat Tire Repair Kit ..................................303
Models with Spare Tire ................................................303
9-3. Flat Tires ..............................................................303
Changing a Flat Tire .....................................................303
Sealing a Flat Tire (Models with the Flat 
Tire Repair Kit) ...........................................................306
Tire Pressure Monitoring System (TPMS) 
(If Equipped) ...............................................................315
TPMS Screen (If Equipped)..........................................316
9-4. Jump Starting ......................................................316
Battery Precautions......................................................316
How to Jump Start ........................................................317
9-5. Engine Overheating ............................................319
If Steam Is Coming from the Engine 
Compartment ..............................................................319 If No Steam Is Coming from the Engine

Compartment ............................................................. 319
9-6. Towing .................................................................320
Towing Hook and Tie-Down Hooks/Holes ................. 320
Using a Flat-Bed Truck................................................ 324
Towing with All Wheels on the Ground ..................... 324
9-7. Access Key Fob – If Access Key Fob Does 
Not Operate Properly ...... ..................................325
Locking and Unlocking ............................................... 326
Switching Power Status .............................................. 326
Starting Engine ............................................................ 326
9-8. Malfunctions of the Center Information 
Display ...............................................................327
9-9. If Your Vehicle Is Invo lved in an Accident ........328
To Restart the Engine When Involved in an 
Accident ..................................................................... 328
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If You Park Your Vehicle in an Emergency
3029-1. If You Park Your Vehicle in an EmergencyThe hazard warning flasher should be
used in day or night to warn other drivers
when you have to park your vehicle under
emergency conditions.
Avoid stopping on the road. It is best to
safely pull off the road if a problem occurs.
The hazard warning flasher can be acti-
vated regardless of the ignition switch
position.
Turn on the hazard warning by pressing
the hazard warning flasher switch. Turn it
off by pressing the switch again.
When the hazard warning flasher are
flashing, the corresponding turn signal
indicator will also flash.
NOTEWhen the hazard warning flasher is on,
the turn signals do not work.
9-2. Maintenance ToolsYour vehicle is equipped with the following
maintenance tools.
 Jack
 Jack handle
 Screwdriver
 Towing hook (eye bolt)
 Wheel nut wrench
901197
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Flat Tires
304
NOTEContact a SUBARU dealer when jack-
ing up the vehicle using a garage jack.
1. Park on a hard, level surface, when-
ever possible, then stop the engine.
2. Set the parking brake securely and
shift the shift lever in reverse (MT models)
or the select lever to the “P” (Park) posi-
tion (AT models).
3. Turn on the hazard warning flasher
and unload all occupants and luggage
from the vehicle.
4. Put wheel blocks at the front and rear
of the tire diagonally opposite the flat tire. 5. Take out the jack, jack handle and

wheel nut wrench.
The tools and the spare tire are stored
under the floor of the trunk. Refer to
"Maintenance Tools" P302.
NOTEMake sure that the jack is well lubri-
cated before using it.
6. Models with spare tire: Take out the
under-floor storage compartment and turn
the attaching bolt counterclockwise, then
take the spare tire out.
 Always turn off the engine before
raising the flat tire off the ground
using the jack. Never swing or
push the vehicle supported with
the jack. The jack can come out of
the jacking point due to a jolt and
this can result in serious injury or
death. All passengers must exit the
vehicle before you raise it with
the jack. Raising the vehicle with
someone inside of it could result
in serious injury or death. Do not start the vehicle while it is
supported by the jack. Doing so
could result in serious injury or
death.
CAUTION
Do not hit and bend the disc rotor
backing plate when removing and
installing the tire. A bent backing
plate may scrape against the disc
rotor and cause noise while the
vehicle is in motion.
901050
901295
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Corrosion Protection
334Do not use detergent on the wheels
when they are hot, such as after driving or
parking in hot weather.■ Alloy Wheels (Vehicles with
Matte Painted Wheels)As matte painted wheels require different
cleaning methods than conventional alloy
wheels, be sure to observe the following.
For details, consult your SUBARU dealer.
 Remove dirt using water. If the wheels
are excessively dirty, use a sponge or soft
cloth dampened with a diluted neutral
detergent to remove the dirt.
 To prevent the matte paint from being
damaged, make sure to observe the
following precautions:
- Do not scrub or polish the wheels
using a brush or dry cloth.
- Do not use any wheel coatings or
abrasive detergents.
10-2. Corrosion ProtectionYour SUBARU has been designed and
built to resist corrosi on. Special materials
and protective finishes have been used on
most parts of the vehicle to help maintain
fine appearance, strength, and reliable
operation.■ Most Common Causes of
CorrosionThe most common causes of corrosion
are:
 The accumulation of moisture retaining
dirt and debris in body panel sections,
cavities, and other areas.
 Damage to paint and other protective
coatings caused by gravel and stone
chips or minor accidents.
Corrosion is accelera ted on the vehicle
when:
 It is exposed to road salt or dust control
chemicals, or used in coastal areas where
there is more salt in the air, or in areas
where there is considerable industrial
pollution.
 It is driven in areas of high humidity,
especially when temperatures range just
above freezing.
 Dampness in certain parts of the
vehicle remains for a long time, even though other parts of the vehicle may be

dry.
 High temperatures will cause corrosion
to parts of the vehicle which cannot dry
quickly due to lack of proper ventilation.
■ To Help Prevent CorrosionWash the vehicle regularly to prevent
corrosion of the body and suspension
components. Also, wash the vehicle
promptly after driving on any of the
following surfaces.
 Roads that have been salted to prevent
them from freezing in winter
 Mud, sand, or gravel
 Coastal roads
After the winter has ended, it is recom-
mended that the underbody be given a
very thorough washing.
Before the beginning of winter, check the
condition of underbody components, such
as the exhaust system, fuel and brake
lines, brake cables, suspension, steering
system, floor pan, and fenders. If any of
them are found to be rusted, they should
be given an appropriate rust prevention
treatment or should be replaced. Contact
your SUBARU dealer to perform this kind
of maintenance and treatment if you need
assistance.
Repair chips and scratches in the paint as
soon as you find them.
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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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