2023 SUBARU BRZ Owners Manual

Appearance Care10
Appearance Care
10-1. Exterior Care .....................................................332
Washing.........................................................................332
Waxing and Polishing ..................................................333
Cleaning Alloy Wheels .................................................333
Alloy Wheels (Vehicles with Matte Painted 
Wheels) .......................................................................334
10-2. Corrosion Protection ........................................334
Most Common Causes of Corrosion ..........................334 To Help Prevent Corrosion ......................................... 334
10-3. Cleaning the Interior .........................................335
Seat Fabric Material ..................................................... 335
Leather Seat Materials................................................. 335
Synthetic Leather Upholstery ..................................... 336
Instrument Panel, Console Panel, Switches,
Combination Meter, and Other Plastic Surface ...... 336
Center Information Display ......................................... 336
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Exterior Care
33210-1. Exterior Care■Washing
NOTE
When having your vehicle washed in
an automatic car wash, make sure
beforehand that the car wash is of
suitable type.
The best way to preserve your vehicle’s
beauty is frequent washing. Wash the
vehicle at least once a month to avoid
contamination by road grime.
Wash dirt off with a wet sponge and plenty
of lukewarm or cold water. Do not wash
the vehicle with hot water and in direct
sunlight.
Salt, chemicals, insects, tar, soot, tree
sap, and bird droppings should be washed
off by using a light detergent, as required.
If you use a light detergent, make certain
that it is a neutral detergent. Do not use
strong soap or chemical detergents. All
cleaning agents should be promptly
flushed from the surface and not allowed
to dry there. Rinse the vehicle thoroughly with plenty of lukewarm water. Wipe the

remaining water off with a chamois or soft
cloth. Wear rubber gloves and use a hand
brush when washing down underbody,
inner fenders and suspension to effec-
tively remove mud and dirt off.
▼ Washing the underbody
Chemicals, salts and gravel used for
deicing road surfaces are extremely corro-
sive, accelerating the corrosion of under-
body components, such as the exhaust
system, fuel and brake lines, brake
cables, floor pan and fenders, and
suspension.
Thoroughly flush the underbody and
inside of the fenders with lukewarm or
cold water at frequent intervals to reduce
the harmful effects of such agents.
Mud and sand adhering to the underbody
components may accelerate their corro-
sion.
After driving off-road or on muddy or
sandy roads, wash the mud and sand off
the underbody.
Carefully flush the suspension and axle
parts, as they are particularly prone to
mud and sand buildup. Do not use a
sharp-edged tool to remove caked mud.
CAUTION
 When washing the vehicle, the
brakes may get wet. As a result,
the brake stopping distance will
be longer. To dry the brakes,
drive the vehicle at a safe speed
while lightly pressing the brake
pedal to heat up the brakes. Do not wash the engine compart-
ment and areas adjacent to it. If
water enters the engine air intake
or electrical parts, it will cause
engine trouble or a malfunction of
the power steering. When washing inner fenders,
underbody, bumpers and
protruding objects such as
exhaust pipes and exhaust
finishers, be careful to prevent
injuries from contacting sharp
ends.
 Do not use any organic solvents
when washing the surface of the
bulb assembly cover. However, if
a detergent with organic solvents
is used to wash the cover surface,
completely rinse off the detergent
with water. Otherwise, the cover
surface may be damaged.
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Exterior Care
333
Appearance Care10
– CONTINUED –
▼Using a warm water washer
 Keep a good distance of 12 in (30 cm)
or more between the washer nozzle and
the vehicle.
 Do not wash the same area continu-
ously.
 If a stain will not come out easily, wash
by hand. Some warm water washers are
of the high temperature, high pressure
type, and they can damage or deform the
resin parts such as moldings, or cause
water to leak in to the vehicle.■Waxing and PolishingAlways wash and dry the vehicle before
waxing and polishing.
Use a good quality polish and wax and
apply them according to the manufac-
turer’s instructions. Wax or polish when
the painted surface is cool. Be sure to polish and wax the chrome trim,

as well as the painted surfaces. Loss of
wax on a painted surface leads to loss of
the original luster and also quickens the
deterioration of the surface. It is recom-
mended that a coat of wax be applied at
least once a month, or whenever the
surface no longer repels water.
If the appearance of the paint has dimin-
ished to the point wher e the luster or tone
cannot be restored, lightly polish the
surface with a fine-grained compound.
Never polish just the affected area, but
include the surrounding area as well.
Always polish in only one direction. A No.
2000 grain compound is recommended.
Never use a coarse-grained compound.
Coarser grained compounds have a
smaller grain-size number and could
damage the paint. After polishing with a
compound, coat with wax to restore the
original luster. Frequent polishing with a
compound or an incorrect polishing tech-
nique will result in removing the paint layer
and exposing the undercoat. When in
doubt, it is always best to contact your
SUBARU dealer or an auto paint
specialist.
NOTEBe careful not to block the windshield
washer nozzles with wax when waxing
the vehicle.■ Cleaning Alloy WheelsPromptly wipe the alloy wheels clean of
any kind of grime or agent. If dirt is left on
too long, it may be difficult to clean off.
 Do not use soap containing grit to clean
the wheels. Be sure to use a neutral
cleaning agent, and later rinse thoroughly
with water. Do not clean the wheels with a
stiff brush or expose them to a high-speed
washing device.
 Clean the vehicle (including the alloy
wheels) with water as soon as possible
when it has been splashed with sea water,
exposed to sea breezes, or driven on
roads treated with salt or other agents.
CAUTION
 Be careful not to damage brake
hoses, sensor harnesses, and
other parts when washing
suspension components. Be careful not to flush the engine
bottom for a long time. It may
cause damage of some electrical
parts.
CAUTION
Do not use any agents with organic
solvents on the surface of the bulb
assembly cover. However, if a pol-
ish or wax with organic solvents is
applied to the cover surface, com-
pletely wipe off the polish or wax.
Otherwise, the cover surface may
be damaged.
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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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Cleaning the Interior
335
Appearance Care10
– CONTINUED –
Check the interior of the vehicle for water
and dirt accumulation under the floor mats
because that could cause corrosion.
Occasionally check under the mats to
make sure the area is dry.
Keep your garage dry. Do not park your
vehicle in a damp, poorly ventilated
garage. In such a garage, corrosion can
be caused by dampness. If you wash the
vehicle in the garage or put the vehicle
into the garage when wet or covered with
snow, that can cause dampness.
If your vehicle is operated in cold weather
and/or in areas where road salts and other
corrosive materials are used, the door
hinges and locks, trun k lid lock, and hood
latch should be inspected and lubricated
periodically.
10-3. Cleaning the InteriorUse a soft, damp cloth to clean the climate
control panel, audio equipment, instru-
ment panel, center console, combination
meter panel, and switches. (Do not use
organic solvents.)■ Seat Fabric MaterialRemove loose dirt, dust or debris with a
vacuum cleaner. If the dirt is caked on the
fabric or hard to remove with a vacuum
cleaner, use a soft brush then vacuum it.
Wipe the fabric surface with a tightly
wrung cloth and dry the seat fabric thor-
oughly. If the fabric is still dirty, wipe using
a solution of mild soap and lukewarm
water then dry thoroughly.
If the stain does not come out, try a
commercially available fabric cleaner. Use
the cleaner on a hidden place and make
sure it does not affect the fabric adversely.
Use the cleaner according to its instruc-
tions.
NOTEAs the color of the meter visor may
transfer, do not place anything on top
of it.■ Leather Seat MaterialsThe leather used by SUBARU is a high
quality natural product which will retain its
distinctive appearance and feel for many
years with proper care.
Allowing dust or road dirt to build up on the
surface can cause leather to become
brittle and wear prematurely. To maintain
its resiliency, leather should be cleaned
monthly or whenever it becomes soiled.
Before cleaning leather upholstery,
vacuum it to remove dust. Use a soft and
lint-free cloth dampened with lukewarm
water and mild soap, taking care not to
soak the leather or allow water to pene-
trate the stitched seams. Use a gentle
circular motion while cleaning the leather -
do not rub or apply extreme pressure.
Wipe the leather again with another clean,
slightly damp cloth to remove soap
residue and dry with a soft cloth.
Minor surface blemishes or difficult dirt
spots may be treated with a commercial
leather spray. Never use alcohol, cleaning
solvents, leather oils, varnishes or
polishes on your leather as it will dry out
the leather finish.
CAUTION
When cleaning the seat, do not use
benzine, paint thinner, or any simi-
lar materials. Doing so could dam-
age the surface and cause the color
to deteriorate.
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Cleaning the Interior
336If your SUBARU is to be parked for a long
time in bright sunlight, it is recommended
that the seats and headrests be covered,
or the windows shaded, to prevent fading
or shrinkage.
You will discover that each leather seat
section will develop so ft folds or wrinkles,
which is characteristic of genuine leather.■ Synthetic Leather UpholsteryThe synthetic leather material used on the
SUBARU may be cleaned using mild soap
or detergent and water, after first vacu-
uming or brushing away loose dirt. Allow
the soap to soak in for a few minutes and
wipe off with a clean, damp cloth.
Commercial foam-type cleaners suitable
for synthetic leather materials may be
used when necessary.
■ Instrument Panel, Console
Panel, Switches, Combina -
tion Meter, and Other Plastic
SurfaceUse a soft, damp cloth to clean the instru-
ment panel, center console, combination
meter panel, and switches.■ Center Information DisplayTo clean the center information display,
wipe it with a silicone cloth or with a soft
cloth. If the monitor is extremely dirty,
clean it with a soft cloth moistened with
neutral detergent then carefully wipe off
any remaining detergent.
CAUTION
Strong cleaning agents such as sol-
vents, paint thinners, window
cleaner or gasoline must never be
used on leather or synthetic interior
materials. Doing so could damage
the surface and cause the color to
deteriorate.
CAUTION
 Do not use organic solvents such
as paint thinners or gasoline, or
strong cleaning agents that
contain those solvents. Doing so
could damage the surface and
cause the color to deteriorate. Do not use chemical solvents that
contain silicone on the vehicle
audio system, electrical compo-
nents of the air-conditioner or
any switches. If silicone adheres
to these parts, it may cause
damage to electrical compo-
nents.
CAUTION
 Do not spray neutral detergent
directly onto the monitor. Doing
so could damage the monitor’s
components. Do not wipe the monitor with a
hard cloth. Doing so could
scratch the monitor. Do not use cleaning fluid that
contains thinner, fuel, or any
other volatile substance. Such
cleaning fluid could erase the
lettering on the switches at the
bottom of the monitor.
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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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