2023 SUBARU BRZ wheel size

Tires and Wheels
365
Maintenance and Service11
– CONTINUED –
After driving approximately 600
miles (1,000 km), check the wheel
nuts again and retighten any nut
that has become loose.■ Tire ReplacementThe wheels and tires are important and
integral parts of your vehicle’s design;
they cannot be changed arbitrarily. The
tires fitted as standard equipment are opti-
mally matched to the characteristics of the
vehicle and were sele cted to give the best
possible combination of running perfor-
mance, ride comfort, and service life. It is
essential for every tire to have a size and
construction matching those shown on the
tire inflation pressure label and to have a
speed symbol and load index matching
those shown on the tire inflation pressure
label.
Using tires of a non-specified size detracts
from controllability, ride comfort, braking
performance, speedometer accuracy and
odometer accuracy. It also creates incor-
rect body-to-tire clearances and inappro-
priately changes the vehicle’s ground
clearance.
All four tires must be the same in terms of
manufacturer, brand (tread pattern),
construction, and size. You are advised to
replace the tires with new ones that are identical to those fitted as standard equip-
ment.
For safe vehicle operation, SUBARU

recommends replacing all four tires at the
same time.
■ Wheel ReplacementWhen replacing wheels due, for example,
to damage, make sure the replacement
wheels match the specifications of the
wheels that are fitted as standard equip-
ment. Replacement wheels are available
from SUBARU dealers.
WARNING
 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 tire inflation pres-
sure label. The tire inflation pres-
sure label is located on the
driver’s center pillar.
If all four tires are not the same in
items (a) to (h), serious mechani-
cal damage could be caused to
the drivetrain of the car, and
affect the followings.-Ride-Handling-Braking- Speedometer/Odometer cali- bration- Clearance between the body
and the tires
It also may be dangerous and
lead to loss of vehicle control,
and it can lead to an accident.
 Use only radial tires. Do not use
radial tires together with belted
bias tires and/or bias-ply tires.
Doing so can dangerously reduce
controllability, resulting in an
accident.
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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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Tire Information
399
Consumer Information and Reporting Safety Defects13
– CONTINUED –
Occupant distribution
Distribution of occupants in a
vehicle as specified in the third
column of Table 1 that is appended
to the end of this section.
 Open splice
Any parting at any junction of tread,
sidewall, or innerliner that extends
to cord material.
 Outer diameter
The overall diameter of an inflated
new tire.
 Overall width
The linear distance between the
exteriors of the sidewalls of an
inflated tire, including elevations
due to labeling, decorations, or
protective bands or ribs.
 Passenger car tire
A tire intended for use on passenger
cars, multipurpose passenger vehi-
cles, and trucks, that have a gross
vehicle weight rating (GVWR) of
10,000 lbs (4,535 kg) or less. 
Ply
A layer of rubber-coated parallel
cords.
 Ply separation
A parting of rubber compound
between adjacent plies.
 Pneumatic tire
A mechanical device made of
rubber, chemicals, fabric and steel
or other materials, that, when
mounted on an automotive wheel,
provides the traction and contains
the gas or fluid that sustains the
load.
 Production options weight
The combined weight of those
installed regular production options
weighing over 5.1 lbs (2.3 kg) in
excess of those standard items
which they replace, not previously
considered in curb weight or acces-
sory weight, including heavy duty
brakes, ride levelers, roof rack,
heavy duty battery, and special trim. 
Radial ply tire
A pneumatic tire in which the ply
cords that extend to the beads are
laid at substantially 90 degrees to
the centerline of the tread.
 Recommended inflation pres-
sure
The cold inflation pressure recom-
mended by a vehicle manufacturer.
 Reinforced tire
A tire designed to operate at higher
loads and at higher inflation pres-
sures than the corresponding stan-
dard tire.
 Rim
A metal support for a tire or a tire
and tube assembly upon which the
tire beads are seated.
 Rim diameter
Nominal diameter of the bead seat.
 Rim size designation
Rim diameter and width.
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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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