Treadwear
The treadwear grade is a comparative rating based on the
wear rate of the tire when tested under controlled con-
ditions on a specified government test course. For ex-
ample, 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, 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. Those 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
Vehicle Safety Standard No. 109. Grades B and A repre-
sent higher levels of performance on the laboratory test
wheel than the minimum required by law.
IF YOU NEED CONSUMER ASSISTANCE 357
9
Clean Air Gasoline...................... 247
Climate Control........................ 187
Clock..........................161,167,183
Compact Disc (CD) Maintenance........... 186
Compact Spare Tire..................... 234
Compass............................. 152
Compass Calibration.................... 152
Compass Variance...................... 152
Computer, Trip/Travel................... 150
Console.............................. 125
Console, Floor......................... 125
Console, Overhead...................... 112
Contract, Service....................... 354
Coolant Pressure Cap.................... 307
Cooling System........................ 305
Adding Coolant (Antifreeze)............. 306
Coolant Capacity..................... 331
Coolant Level.....................305,308
Disposal of Used Coolant............... 308
Drain, Flush, and Refill................. 306
Inspection........................... 308
Points to Remember................... 308
Pressure Cap........................ 307Radiator Cap........................ 307
Selection of Coolant (Antifreeze)....306,331,332
Cruise Control (Speed Control)............. 109
Cup Holder........................124,317
Customer Assistance.................... 352
Data Recorder, Event..................... 49
Dealer Service......................... 290
Defroster, Rear Window.................. 188
Defroster, Windshield...............60,189,194
Delay (Intermittent) Wipers............... 101
Diagnostic System, Onboard............... 288
Dimmer Switch, Headlight................ 100
Disposal
Antifreeze (Engine Coolant)............. 308
Door Locks............................ 15
Door Locks, Automatic................... 17
Door Opener, Garage.................... 113
Drive Belts............................ 296
Driving
On Slippery Surfaces.................. 279
DVD Player (Video Entertainment System).... 181
362 INDEX
