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DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES
The following tire grading categories were established by
the National Highway Traffic Safety Administration. The
specific grade rating assigned by the tire’s manufacturer
in each category is shown on the sidewall of the tires on
your vehicle.
All passenger car tires must conform to Federal safety
requirements in addition to these grades.
Treadwear
The Treadwear grade is a comparative rating, based on
the wear rate of the tire when tested under controlled
conditions 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 charac-
teristics 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.
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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.
WARNING!
The temperature grade for this tire is established for
a tire that is properly inflated and not overloaded.
Excessive speed, under-inflation, or excessive load-
ing, either separately or in combination, can cause
heat buildup and possible tire failure.
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Security Alarm.........................292
Service...............................636
Service Engine Soon (Malfunction Indicator) . . . .292
Side Marker...........................639
Tire Pressure Monitoring (TPMS)............292
Traction Control........................470
Turn Signal............................112
Vanity Mirror..........................130
Loading Vehicle..........................518
Ti re s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..478
Locks..................................31
Child Protection.........................33
Door.................................31
Power Door............................32
Lubrication, Body.........................601
Luggage Rack (Roof Rack)...................276
Lug Nuts...............................549
Maintenance Free Battery....................595
Maintenance Procedures....................590
Maintenance Schedule......................648
Malfunction Indicator Light (Check Engine).......292
Manual, Service..........................662
Memory Feature (Memory Seat)...............164
Memory Seat............................164
Memory Seats and Radio....................164
Methanol...............................508
Mirrors................................120
Electric Powered........................128
Electric Remote.........................128
Exterior Folding........................128
Heated...............................129
Outside..............................120
Rearview.............................120
Vanity...............................130
Modifications/Alterations, Vehicle...............9
Monitor, Tire Pressure System................498
MOPAR® Parts...........................589
676 INDEX
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Spare Tire.............................553
Spinning.............................492
Trailer Towing.........................531
Tread Wear Indicators....................492
Tire Safety Information.....................472
Tongue Weight/Trailer Weight................528
Tow Hooks, Emergency.....................573
Towing................................520
Disabled Vehicle........................578
Guide...............................525
Recreational...........................537
Weight...............................525
Towing Vehicle Behind a Motorhome...........537
Traction Control..........................461
Trailer Sway Control (TSC)..................466
Trailer Towing...........................520
Cooling System Tips.....................536
Hitches..............................524
Minimum Requirements..................529
Trailer and Tongue Weight.................528
Wiring...............................533
Trailer Towing Guide.......................525
Trailer Weight............................525
Transfer Case............................616
Electronically Shifted.....................441
Fluid................................645
Maintenance...........................616
Transmission............................431
Automatic............................431
Fluid................................645
Maintenance...........................617
Shifting..............................428
Transmitter Battery Service (Remote Keyless Entry) . .25
Transmitter, Garage Door Opener (HomeLink®). . . .242
Transmitter Programming (Remote Keyless Entry) . . .22
Transmitter, Remote Keyless Entry (RKE).........22
Transporting Pets.........................107
Tread Wear Indicators......................492
10
INDEX 683
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