tires SUBARU BRZ 2018 Service Manual

502 6-1. Specifications
BRZ_U (A4450BE-A)
Steering
Tires and wheels (for vehicles sold in the U.S.A. and Canada)Ty p e A
Ty p e B
Free play Less than 1.2 in. (30 mm)
Tire size 215/45R17 87W, T135/80D16 101M
Tire inflation pressure
(Recommended cold tire
inflation pressure) Front
35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Rear 35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Spare 60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size 17 × 7 J, 16 × 4T (spare)
Wheel nut torque 89 ft•lbf (120 N•m, 12.2 kgf•m)
Tire size 215/45R17 87W, T145/70D17 106M
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Rear 35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Spare 60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size 17 × 7 1/2 J, 17 × 4T (spare)
Wheel nut torque 89 ft•lbf (120 N•m, 12.2 kgf•m)

503
6-1. Specifications
6
Vehicle specifications
BRZ_U (A4450BE-A)
Ty p e C
Tires and wheels (for vehicles sold in Mexico)
Tire size 215/40R18 85Y, T145/70D17 106M
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Front
35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Rear 35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Spa re 60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size 18 × 7 1/2 J, 17 × 4T (spare)
Wheel nut torque 89 ft•lbf (120 N•m, 12.2 kgf•m)
Tire size 215/45R17 87W
Tire inflation pressure
(Recommended cold tire
inflation pressure) Front
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Rear 35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Spa re 35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Wheel size 17 × 7 J
Wheel nut torque 89 ft•lbf (120 N•m, 12.2 kgf•m)

510 6-1. Specifications
BRZ_U (A4450BE-A)
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the
strands which form the plies in a tire.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked
“RADIAL” is a bias-ply tire.
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly filled in the
tire. A tube type tire has a tube inside the tire and the tube main-
tains the air pressure.
Load limit at maximum cold tire inflation pressure (→P. 377)
Maximum cold tire inflation pressure ( →P. 502)
This means the pressure to which a tire may be inflated.
Summer tire or all season tire ( →P. 377)
An all season tire has “M+S” on the sidewall. A tire not marked
“M+S” is a summer tire.
“TEMPORARY USE ONLY” ( →P. 464)
A compact spare tire is identified by the phrase “TEMPORARY
USE ONLY” molded into its sidewall. This tire is designed for tem-
porary emergency use only.

513
6-1. Specifications
6
Vehicle specifications
BRZ_U (A4450BE-A)
Tire section names
Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
Uniform Tire Quality GradingThis information has been prepared in accordance with regulations
issued by the National Highway Traffic Safety Administration of the
U.S. Department of Transportation.
It provides the purchasers and/or prospective purchasers of
SUBARU vehicles with information on uniform tire quality grading.
Your SUBARU dealer will help answer any questions you may have as
you read this information.
■ DOT quality grades
All passenger vehicle tires must conform to Federal Safety
Requirements in addition to these grades. 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

514 6-1. Specifications
BRZ_U (A4450BE-A)■
Tre ad w ea r
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested under controlled conditions on a speci-
fied government test course.
For example, a tire graded 150 would wear one and a 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. Performance may differ significantly from the norm due
to variations in driving habits, service practices and differences in
road characteristics and climate.
■Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C,
and they represent the tire’s ability to stop on wet pavement as
measured under controlled conditions on specified government
test surfaces of asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking
(straight ahead) traction tests and does not include cornering (turn-
ing) traction.
■Temperature A, B, C
The temperature grades are A (the highest), B, and C, represent-
ing the tire’s resistance to the generation of heat and its ability to
dissipate heat when tested under controlled conditions on a speci-
fied indoor laboratory test wheel.
Sustained high temperature can cause the material of the tire to
degenerate and reduce tire life, and excessive temperature can lead
to sudden tire failure.
Grade C corresponds to a level of performance which all passenger
car tires must meet under the Federal Motor Vehicle Safety Standard
No. 109.
Grades B and A represent higher levels of performance on the labo-
ratory test wheel than the minimum required by law.

560 Alphabetical index
BRZ_U (A4450BE-A)
Paddle shift levers ................... 188
Parking brake ........................... 197
Parking lightsSwitch.................................... 233
Power outlets ........................... 316
Power windows ..........................74
Radiator .................................... 366
Rear seats ...................................56
Rear side marker lights Switch.................................... 233
Rear turn signal lights Switch.................................... 195
Rear view camera..................... 248
Rear view mirror Inside rear view mirror.............69
Outside rear view mirrors ........71
Rear window defogger ............ 302
Replacing Fuses .................................... 397
Key battery ............................ 392
Light bulbs............................. 405
Tires ...................................... 457
Reporting safety defects
for U.S. owners ...................... 529
REV indicator ........................... 161 Seat heaters ............................. 318
Seatbelts
Adjusting the seatbelt.............. 60
Automatic Locking Retractor (ALR) .................... 62
Child restraint system
installation........................... 145
Cleaning and maintaining the seatbelts ....................... 343
Emergency Locking Retractor (ELR) .................... 62
How to wear your seatbelt ...... 60
How your child should
wear the seatbelt .................. 62
Pregnant women, proper seatbelt use ............... 64
Reminder light ....................... 432
Seatbelt guide ......................... 61
Seatbelt pretensioners ............ 61
Seating capacity ...................... 276
Seats Adjustment .............................. 53
Adjustment precautions .......... 54
Child seats/child restraint system installation .............. 145
Cleaning................................ 342
Head restraint ......................... 58
Properly sitting in the seat....... 91
Seat heaters.......................... 318
Service reminder indicators .............................. 203P
R
S

562 Alphabetical index
BRZ_U (A4450BE-A)
TachometerTachometer ........................... 199
Tail lights Switch.................................... 233
Theft deterrent system Alarm .......................................87
Engine immobilizer system .....82
Theft prevention labels..............86
Tire inflation pressure ............. 502
Tire information Glossary ................................ 515
Size ....................................... 512
Tire identification number...... 511
Uniform tire quality grading................................ 513
Tires Chains ................................... 279
Checking ............................... 374
Compact spare tire................ 457
If you have a flat tire..............457
Inflation pressure................... 382
Inflation pressure sensor ....... 374
Information ............................ 509
Replacing ..............................457
Rotating tires ......................... 374
Size ....................................... 502
Snow tires ............................. 277
Spare tire............................... 457
Tire pressure monitoring system ................................ 432
Tools ......................................... 457 Towing
Dinghy towing ....................... 283
Emergency towing ................ 419
TRAC ......................................... 257
“TRACK” mode ........................ 259
Traction control ....................... 257
Transmission shift switches ......................... 188, 190
Transmitter Locking/Unlocking................... 38
Replacing the battery ............ 392
Transmitter.............................. 38
Trip meter ......................... 210, 230
Trunk lid Opener .................................... 46
Trunk light Wattage................................. 504
Turn signal lights
Switch ................................... 195
USB port ................................... 304
Vanity lights Vanity lights........................... 314
Wattage................................. 504
Vanity mirrors .......................... 314
Vehicle identification number ................................... 493
Vehicle stability control
(VSC)....................................... 257T
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