Treadwear
The Treadwear grade is a comparative rating, based on the
wear rate of the tire when tested under controlled condi-
tions on a specified government test course. For example, a
tire graded 150 would wear one and one-half 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 Grades
The Traction grades, from highest to lowest, are AA, A, B,
and C. These grades 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 perfor-
mance.
WARNING!
The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not
include acceleration, cornering, hydroplaning, or
peak traction characteristics.
Temperature Grades
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of heat
and its ability to dissipate heat, when tested under
controlled conditions on a specified 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. The
grade C corresponds to a level of performance, which all
passenger car tires must meet under the Federal Motor
542 IF YOU NEED CONSUMER ASSISTANCE
Luggage Carrier....................... .207
Cargo Light ............................ .199
Cargo Load Floor ........................ .202
Cargo Tie-Downs ........................ .202
Car Washes ............................ .506
Cellular Phone ...........................110
Center High Mounted Stop Light ..............520
Chains, Tire ............................ .397
Changing A Flat Tire ...................... .438
Chart, Tire Sizing ........................ .376
Check Engine Light (Malfunction Indicator Light) . .476
Checking Your Vehicle For Safety ...............96
Checks, Safety ............................96
Child Restraint ............................76
Child Restraints Child Seat Installation .....................92
Install A LATCH-compatible Child Restraint .....89
Installing Child Restraints Using The Vehicle
Seat Belt ..............................91 Lower Anchors And Tethers For Children
.......83
Child Safety Locks .........................34
Clean Air Gasoline ....................... .409
Cleaning Wheels .............................. .508
Climate Control ......................... .300
Clock ................................. .245
Clutch ................................ .498
Clutch Fluid ............................ .498
Coin Holder ............................ .197
Cold Weather Operation ....................322
Compact Disc (CD) Maintenance ..............299
Compact Spare Tire ....................... .391
Compass .............................. .228
Compass Calibration ...................... .241
Compass Variance ........................ .241
Connector UCI................................ .290
Universal Consumer Interface (UCI) ..........290
548 INDEX
