User Manual - Page 276

For 2019 GRAND CHEROKEE SRT.

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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 speci-
fied government test surfaces of as-
phalt 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 char-
acteristics.
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 condi-
tions 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 Stan-
dard 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 prop-
erly inflated and not overloaded.
Excessive speed, under-inflation, or
excessive loading, either separately
or in combination, can cause heat
buildup and possible tire failure.
INTERIORS
Seats And Fabric Parts
Use Mopar Total Clean to clean fabric uphol-
stery and carpeting.
WARNING!
Do not use volatile solvents for cleaning
purposes. Many are potentially flam-
mable, and if used in closed areas they
may cause respiratory harm.
SERVICING AND MAINTENANCE
274
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