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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 manu-
facturer in each category is shown on the sidewall of the
tires on your vehicle.
All passenger vehicle 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 condi-
tions 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
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 pas-
senger vehicle tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B and A
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SERVICING AND MAINTENANCE
421
Содержание Wrangler JK 2018
Страница 4: ......
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Страница 11: ...GRAPHICAL TABLE OF CONTENTS CONTENTS FRONT VIEW 10 REAR VIEW 11 INSTRUMENT PANEL 12 INTERIOR 13 2...
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Страница 108: ...2 Engage header latches 3 Install rear corner panels Step Two Step Three 106 GETTING TO KNOW YOUR VEHICLE...
Страница 137: ...6 Fold header rearward pulling the fabric to the rear Step Six Step Six 3 GETTING TO KNOW YOUR VEHICLE 135...
Страница 140: ...2 Install rear corner panels 3 Rotate the header forward Step Two Step Three 138 GETTING TO KNOW YOUR VEHICLE...
Страница 141: ...4 Engage the header latches 5 Install the back window Step Four Step Five 3 GETTING TO KNOW YOUR VEHICLE 139...
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Страница 487: ...Voice Tree Main Menu 10 MULTIMEDIA 485...
Страница 488: ...Voice Tree Phonebook 486 MULTIMEDIA...
Страница 489: ...Voice Commands Primary Alternate s zero one Primary Alternate s two three four Voice Tree Setup 10 MULTIMEDIA 487...
Страница 505: ...INDEX 12...