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
500
SERVICING AND MAINTENANCE
Summary of Contents for Cherokee 2019
Page 4: ......
Page 11: ...REAR VIEW Rear View 1 Taillight 2 Liftgate 2 GRAPHICAL TABLE OF CONTENTS 9...
Page 14: ......
Page 134: ...INSTRUMENT CLUSTER Base Instrument Cluster 132 GETTING TO KNOW YOUR INSTRUMENT PANEL...
Page 220: ...Not Seated Properly Not Seated Properly 218 SAFETY...
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Page 301: ...Distance Setting 3 Bars Long Distance Setting 2 Bars Medium 6 STARTING AND OPERATING 299...
Page 316: ...Single 1 2 Second Tone Slow Tone 314 STARTING AND OPERATING...
Page 317: ...Slow Tone Fast Tone 6 STARTING AND OPERATING 315...
Page 318: ...Fast Tone Continuous Tone 316 STARTING AND OPERATING...
Page 326: ...Slow Tone Slow Tone For Rear Only 324 STARTING AND OPERATING...
Page 327: ...Fast Tone For Rear Only Fast Tone 6 STARTING AND OPERATING 325...
Page 356: ...Check Surroundings Stop Check Surroundings Shift To Drive 354 STARTING AND OPERATING...
Page 358: ...Check Surroundings Stop Check Surroundings Shift To Reverse 356 STARTING AND OPERATING...
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Page 418: ...Rear Jacking Location Rear Jacking Engagement Point 416 IN CASE OF EMERGENCY...
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Page 593: ...Uconnect 4 Media Uconnect 4C 4C NAV Media 10 MULTIMEDIA 591...
Page 615: ...INDEX 12...
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