tire type SUBARU BRZ 2023 User Guide

Tires and Wheels
360
■Tire InspectionCheck on a daily basis that the tires
are free from serious damage, nails,
and stones. At the same time, check
the tires for abnormal wear.
Contact your SUBARU dealer
immediately if you find any problem.NOTE When the wheels and tires
strike curbs or are subjected to
harsh treatment as when the
vehicle is driven on a rough surface, they can suffer damage

that cannot be seen with the
naked eye. This type of damage
does not become evident until
time has passed. Try not to drive
over curbs, potholes or on other
rough surfaces. If doing so is
unavoidable, keep the vehicle’s
speed down to a walking pace or
less, and approach the curbs as
squarely as possible. Also, make
sure the tires are not pressed
against the curb when you park
the vehicle.
 If you feel unusual vibration
while driving or fi nd it difficult to
steer the vehicle in a straight line,
one of the tires and/or wheels
may be damaged. Drive slowly to
the nearest authorized SUBARU
dealer and have the vehicle
inspected.
 Tires should be replaced if:
– You have tire damage such
as cuts, splits, cracks deep
enough to expose the fabric or
bulges indicating internal
damage
WARNING
If the low tire pressure warning light
does not illuminate briefly after the
ignition switch is turned ON or the
light illuminates steadily after blink-
ing for approximately one minute,
you should have your Tire Pressure
Monitoring System checked at a
SUBARU dealer as so on as possi-
ble.If this light illuminates while driving,
never brake suddenly. Instead, per-
form the following procedure. Oth-
erwise 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.If this light still illuminates while
driving after adjusting the tire pres-
sure, a tire may have significant
damage and a fast leak that causes
the tire to lose ai r rapidly. If you
have a flat tire, re fer to "Flat Tires"
 P303.
When a spare tire is mounted or a
wheel rim is replaced without the
original pressure sensor/transmitter
being transferred, the low tire pres-
sure warning light will illuminate
steadily after blinking for approxi-
mately one minute. This indicates
the TPMS is unable to monitor all
four road wheels. Contact your
SUBARU dealer as soon as possi-
ble for tire and sensor replacement
and/or system resetting. If the light
illuminates steadily after blinking
for approximately one minute,
promptly contact a SUBARU dealer
to have the system inspected.
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Alloy Wheels
366NOTEWhen any of the wheels are removed
and replaced for tire rotation or to
change a flat tire, always check the
tightness of the wheel nuts after driv-
ing approximately 600 miles (1,000
km). If any nut is loos e, tighten it to the
specified torque.
11-22. Alloy WheelsAlloy wheels can be scratched and
damaged easily. Handle them carefully to
maintain their appearance, performance,
and safety.
 When any of the wheels is removed
and replaced for tire rotation or to change
a flat, always check the tightness of the
wheel nuts after driving approximately 600
miles (1,000 km). If any nut is loose,
tighten it to the specified torque.
 Never apply oil to the threaded parts,
wheel nuts, or tapered surface of the
wheel.
 Never let the wheel rub against sharp
protrusions or curbs.
 When wheel nuts, balance weights, or
the center cap is replaced, be sure to
replace them with genuine SUBARU parts
designed for alloy wheels.
11-23. Windshield Washer Fluid1) “LOW” positionThe washer fluid level can be checked by
observing the position of the level on the
liquid-covered holes in the gauge. 
If the level falls below the second hole
from the bottom (the “LOW” position), add
washer fluid.
Use windshield washer fluid. If windshield
washer fluid is unavailable use clean
water.
In areas where water freezes in winter,
use an anti-freeze type windshield washer
fluid.
WARNING
Use only those wheels that are
specified for your vehicle. Wheels
not meeting specifications could
interfere with brake caliper opera-
tion and may cause the tires to rub
against the wheel well housing
during turns. The resulting loss of
vehicle control could lead to an
accident.
1B02110
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Specifications
385
Specifications12
– CONTINUED –
■Electrical System■Tires*1: If equipped
*2: This torque is equivalent to applying approximately 88 to 110 lbf (40 to 50 kgf) at the end of the wheel nut wrench. If you have tightened the wheel
nuts by yourself, have the tightening torque checked at the nearest automotive service facility as soon as possible. For the wh eel nut tightening
procedure, refer to "Changing a Flat Tire" P303.■ Brake Pedal
in (mm)
*: Minimum value when pedal is operated with a force of 67.4 lbf (300 N, 30.6 kgf) while the engine is running.
Battery type
U.S. spec and Canada spec models
75D23L
Except U.S. spec and Canada spec models 55D23L
Alternator 12 V-150 A
Spark plugs ZXE27HBR8 (DENSO)
Tire size 215/45R17 87W215/40R18 85Y
Wheel size 17 × 7 1/2J18 × 7 1/2J
Pressure Front
35 psi (240 kPa, 2.4 kgf/cm
2)
Rear
Spare tire
*1
Size ―215/40R18 85Y
Pressure ―
35 psi (240 kPa, 2.4 kgf/cm
2)
Wheel nut tightening torque 88.5 lbf·ft (120 N·m, 12.2 kgf·m)
*2
Pedal clearance2.91 (74)*
Pedal free play 0.02 - 0.06 (0.5 - 1.5)
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For U.S.A.
39413-1. For U.S.A.The following information has been
compiled according to Code of Federal
Regulations “Title 49, Part 575”.
13-2. Tire Information■ Tire LabelingMany markings (e.g . Tire size, Tire
Identification Number or TIN) are
placed on the sidewall of a tire by
tire manufacturers. These marking
can provide you with useful informa-
tion on the tire.
▼ Tire size
Your vehicle comes equipped with
P-Metric tire size. It is important to
understand the sizing system in
selecting the proper tire for your
vehicles. Here is a brief review of
the tire sizing system with a break-
down of its individual elements.
▽ P Metric
With the P-Metric system, Section
Width is measured in millimeters.
To convert millimeters into inches,
divide by 25.4. The Aspect Ratio
(Section Height divided by Section
Width) helps provide more dimen-
sional information about the tire
size. Example:
(1) P = Certain tire type used on

light duty vehicles such as
passenger cars
(2) Section Width in millimeters
(3) Aspect Ratio (= section height ÷
section width).
(4) R = Radial Construction
(5) Rim diameter in inches
▽ Load and Speed Rating Descrip -
tions
The load and speed rating descrip-
tions will appear following the size
designation.
They provide two important facts
about the tire. First, the number
designation is its load index.
Second, the letter designation indi-
cates the tire’s speed rating.Example:
P 205 / 60 R 16(1) (2) (3) (4) (5)
P 205 / 60 R 16 91 V
Size designation (6) (7)
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Tire Information
395
Consumer Information and Reporting Safety Defects13
– CONTINUED –
(6) Load Index: A numerical code
which specifies the maximum load a
tire can carry at the speed indicated
by its speed symbol, at maximum
inflation pressure.
For example, “
91” means 1,356 lbs
(615 kg), “90” means 1,323 lbs (600 kg),
“89
” means 1,279 lbs (580 kg)
(7) Speed Rating: An alphabetical
system describing a tire’s capability
to travel at established and prede-
termined speeds.
For example, “
V” means 149 mph
(240 km/h)
▼ Tire Identification Number
(TIN)
Tire Identification Number (TIN) is
marked on the intended outboard
sidewall. The TIN is composed of
four groups. Here is a brief review of
the TIN with a breakdown of its indi-
vidual elements. (1) DOT symbol*
(2) Manufacturer’s Identification
Mark
(3) Tire Size Code
(4) Tire Type Code
(5) Date of Manufacture
The first two figures identify the

week, starting with “
01” to represent
the first full week of the calendar
year; the second two figures repre-
sent the year. For example, 0101
means the 1st week of 2001.
*: The DOT symbol certifies that the
tire conforms to applicable
Federal Motor Vehicle Safety
Standards.
▼ Other markings
The following makings are also
placed on the sidewall.
WARNING
Load indices apply only to the
tire, not to the vehicle. Putting
a load rated tire on any vehicle
does not mean the vehicle can
be loaded up to the tire’s rated
load.
WARNING
 Speed ratings apply only to
the tire, not to the vehicle.
Putting a speed rated tire on
any vehicle does not mean
the vehicle can be operated
at the tire’s rated speed. The speed rating is void if
the tires are worn out,
damaged, repaired,
retreaded, or otherwise
altered from their original
condition. If tires are
repaired, retreaded, or other-
wise altered, they may not be
suitable for original equip-
ment tire designed loads and
speeds.
DOT XX XX XXX XXXX
(2)(1) (3) (4) (5)
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Tire Information
396
▽Maximum permissible infla -
tion pressure
The maximum cold inflation pres-
sure to which this tire may be
inflated. For example, “350 kPa (51
PSI) MAX. PRESS”
▽ Maximum load rating
The load rating at the maximum
permissible weight load for this tire.
For example, “MAX. LOAD 615 kg
(1,356 LBS) @ 350 kPa (51 PSI)
MAX. PRESS.”
▽ Construction type
Applicable construction of this tire.
For example, “TUBELESS STEEL
BELTED RADIAL” ▽
Construction
The generic name of each cord
material used in the plies (both
sidewall and tread area) of this tire.
For example, “PLIES: TREAD 2
STEEL + 2 POLYESTER + 1
NYLON SIDEWALL 2 POLY-
ESTER”
▽Uniform Tire Quality
Grading (UTQG)
For details, refer to
"Uniform Tire
Quality Grading Standards" 
P405.
■Recommended Tire Inflation
Pressure▼ Recommended cold tire infla -
tion pressure
For the recommended cold tire infla-
tion pressure for your vehicle’s tires,
refer to
"Tires" 
P385. ▼
Vehicle placard
The vehicle placard is affixed to the
driver’s side B-pillar.Example:
WARNING
Maximum load rating applies
only to the tire, not to the vehi-
cle. Putting a load rated tire on
any vehicle does not mean the
vehicle can be loaded up to
the tire’s rated load.
B02109
XX
D00155
TIRE
PNEU
FRONT AVANT PXXX/XXRXX XXXKPA, XXPSI
REAR
ARRI¨RE PXXX/XXRXX XXXKPA, XXPSI
TXXX/XXDXX XXXKPA, XXPSI
SPARE
DE SECOURS SIZE
DIMENSIONS COLD TIRE PRESSURE
PRESSION DES
PNEUS  FROID
TIRE AND LOADING INFORMATION
RENSEIGNEMENTS SUR LES PNEUS ET LE CHARGEMENT
SEE OWNERS MANUAL FOR ADDITIONAL
INFORMATION
VOIR LE MANUEL DE LUSAGER
POUR PLUS DE
RENSEIGNEMENTSFRONT
AVANT REAR
ARRI¨RE
SEATING CAPACITY
NOMBRE DE PLACES
TOTAL
XX
X
The combined weight of occupants and cargo should never exceed XXXkg or \
XXXlbs.
Le poids total des occupants et du chargement ne doit jamais dØpasser\
XXXkg ou XXXlb.
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Tire Information
400Rim type designation
The industry of manufacturer’s
designation for a rim by style or
code.
 Rim width
Nominal distance between rim
flanges.
 Section width
The linear distance between the
exteriors of the sidewalls of an
inflated tire, excluding elevations
due to labeling, decoration, or
protective bands.
 Sidewall
That portion of a tire between the
tread and bead.
 Sidewall separation
The parting of the rubber compound
from the cord material in the
sidewall.
 Snow tire
A tire that attains a traction index
equal to or greater than 110,
compared to the ASTM E1136-93
Standard Reference Test Tire,
when using the snow traction test as described in ASTM F-1805-00,

Standard Test Method for Single
Wheel Driving Traction in a Straight
Line on Snow-and Ice-Covered
Surfaces, and that is marked with
an Alpine Symbol “ ” on at least
one sidewall.
 Test rim
The rim on which a tire is fitted for
testing, and it may be any rim listed
as appropriate for use with that tire.
 Tread
That portion of a tire that comes into
contact with the road.
 Tread rib
A tread section running
circumferentially around a tire.
 Tread separation
Pulling away of th e tread from the
tire carcass.
 Treadwear indicators (TWI)
The projections within the principal
grooves designed to give a visual
indication of the degrees of wear of
the tread. 
Vehicle capacity weight
The rated cargo and luggage load
plus 150 lbs (68 kg) times the
vehicle’s designated seating
capacity.
 Vehicle maximum load on the
tire
Load on an individual tire that is
determined by distributing to each
axle its share of the maximum
loaded vehicle weight and dividing
by two.
 Vehicle normal load on the tire
Load on an individual tire that is
determined by distributing to each
axle its share of the curb weight,
accessory weight, and normal occu-
pant weight (distributed in accor-
dance with Table 1 that is appended
to the end of this section) and
dividing by 2.
 Wheel-holding fixture
The fixture used to hold the wheel
and tire assembly securely during
testing.BRZ_U.book 400 ページ ２０２２年３月２９日　火曜日　午後３時５９分

Uniform Tire Quality Grading Standards
405
Consumer Information and Reporting Safety Defects13
– CONTINUED –
on the vehicle. That weight may not
safely exceed the available cargo
and luggage load capacity calcu-
lated in Step 4.
13-3. Uniform Tire Quality Grading StandardsThis information i ndicates the rela-
tive performance of passenger car
tires in the area of treadwear, trac-
tion, and temperature resistance.
This is to aid the consumer in
making an informed choice in the
purchase of tires.
Quality grades can be found where
applicable on the tire sidewall
between tread shoulder and
maximum section width. For
example:
TREADWEAR 200 TRACTION AA
TEMPERATURE A
The quality grades apply to new
pneumatic tires for use on
passenger cars. However, they do
not apply to deep tread, winter type
snow tires, space-saver or tempo-
rary use spare tires, tires with
nominal rim diameters of 12 inches
or less, or to some limited produc-
tion tires. All passenger car tires must

conform to Federal Safety Require-
ments in addition to these grades.
■ TREADWEARThe treadwear grade is a compara-
tive rating based on the wear rate of
the tire when tested under
controlled conditions on a specified
government test course.
For example, a tire graded 150
would wear one and one-half (1-1/2)
times as well on the government
course as a tire graded 100. The
relative performance of tires
depends upon the actual conditions
of their use, however, and may
depart significantly from the norm
due to variations in driving habits,
service practices and differences in
road characteristics and climate.■ TRACTION AA, A, B, CThe traction grades, from highest to
lowest, are AA, A, B and C. Those
grades represent the tire’s ability to
stop on wet pavement as measured
under controlled conditions on
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Index
418Specifications .......................................................................P380
Speedometer........................................................................P127
SRS airbag (Supplemental Restraint System airbag) ..... P5, P60Monitors .............................................................................P87
Servicing ............................................................................P88
Warning light................................................... P70, P87, P135
Starting & stopping engine ...................................................P229
State emission testing (U.S. only) ........................................P227
Steering lock ........................................................................P232
Steering Responsive Headlight ..... .......................................P180
OFF indicator ...................................................................P150
OFF indicator light ...........................................................P150
ON/OFF setting .................................................... P150, P180
Warning light....................................................................P150
Steering wheel
Lock .................................................................................P232
Power ..............................................................................P242
Tilt/telescopic ...................................................................P195
Stopwatch ............................................................................P155
Storage compartment...........................................................P213
Summer tires ........................................................................P358
Sun visors ............................................................................P213
Supplemental Restraint System (S RS) ..................................P60
Supplemental Restraint System ai rbag (SRS) .......................P60
Curtain airbag ....................................................................P80
Side airbag ............................... .........................................P80
Synthetic leather upholstery .......... .......................................P336
TTachometer ......................................................................... P127
Temperature gauge ............................................................. P129
Temperature warning light
AT OIL TEMP ................................................................. P138
Tether (child restrain t system) ....................................... P55, P59
Tie-down hooks ................................................................... P320
Tilt/telescopic steering wheel ...... ........................................ P195
Tire ............................................................................ P358, P385 All season tires ............................................................... P358
Chains............................................................................. P297
Information ...................................................................... P394
Inspection ....................................................................... P360
Pressures and wear ........................................................ P361
Replacement................................................................... P365
Rotation .......................................................................... P364
Size and pressure ........ .......................................... ......... P385
Types .............................................................................. P358
Tire pressure monitoring system (TPMS)........P251, P315, P358
Screen ............................................................................ P254
Warning light ................................................................... P138
Tires and wheels ................................................................. P358
Tools.................................................................................... P302
Top tether anchorages .................................................. P55, P59
Towing ................................................................................. P320
All wheels on the ground ................................................ P324
Flat-bed truck .................................................................. P324
Hooks.............................................................................. P320
Tie-down hooks .............................................................. P320
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