430
6-1. Specifications
Tire section namesBead
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
431
6-1. Specifications
6
Vehicle specifications
■Treadwear
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.
477
Alphabetical index
Parking brake .......................... 183
Parking lightsSwitch ................................... 200
Power outlets........................... 264
Power windows ......................... 70
Radiator.................................... 300
Rear seats .................................. 54
Rear side marker lights Replacing light bulbs ............ 337
Switch ................................... 200
Wattage ................................ 421
Rear turn signal lights Replacing light bulbs ............ 337
Switch ................................... 182
Wattage ................................ 421
Rear window defogger............ 250
Replacing
Fuses.................................... 329
Key battery ........................... 325
Light bulbs ............................ 337
Tires ..................................... 378
Reporting safety defects for U.S. owners ..................... 445
REV indicator........................... 150 Seatbelts
Adjusting the seatbelt ..............58
Automatic Locking
Retractor (ALR).....................60
Child restraint system installation ...........................136
Cleaning and maintaining the seatbelts .......................277
Emergency Locking
Retractor (ELR).....................60
How to wear your seatbelt.......58
How your child should wear the seatbelt ..................60
Pregnant women, proper seatbelt use ...............62
Reminder light .......................367
Seatbelt guide .........................59
Seatbelt pretensioners ............59
Seat heaters..............................266
Seating capacity.......................225P
R
S
479
Alphabetical index
TachometerTachometer .......................... 185
Tail lights
Switch ................................... 200
Theft deterrent system Alarm ...................................... 81
Engine immobilizer system..... 77
Theft prevention labels ............. 80
Tire inflation pressure ............ 420
Tire information Glossary ............................... 432
Size ...................................... 429
Tire identification number ..... 428
Uniform tire quality grading ............................... 430
Tires
Chains .................................. 228
Checking .............................. 308
Compact spare tire ............... 378
If you have a flat tire ............. 378
Inflation pressure .................. 315
Inflation pressure sensor ...... 308
Information ........................... 426
Replacing ............................. 378
Rotating tires ........................ 308
Size ...................................... 420
Snow tires............................. 226
Spare tire.............................. 378
Tire pressure monitoring system................................ 367 Tools .........................................378
Towing
Dinghy towing........................231
Emergency towing.................355
TRAC .........................................215
Traction control........................215
Transmission shift switches .........................175, 177
Transmitter Locking/Unlocking ...................37
Replacing the battery ............325
Transmitter ..............................37
Trip meter .................................185
Trunk lid Opener ....................................45
Trunk light Wattage .................................421
Turn signal lights
Replacing light bulbs .............337
Switch....................................182
Wattage .................................421
USB port ...................................252
Vanity lights Vanity lights ...........................261
Wattage .................................421
Vanity mirrors...........................261
Vehicle identification number ...................................411
Vehicle stability control
(VSC) .......................................215
Vehicle stability control
(VSC) SPORT mode ...............217T
U
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