Temperature A; Treadwear 200 Traction AA- Page 301

2019 Cadillac ats Owner Manual

Model Year
2014 Dodge Charger SRT Owner Manual

Table of Contents

01-In Brief_en_US
03-Seats and Restraints_en_US
05-Instruments and Controls_en_US
09-Driving and Operating_en_US
Driving and Operating
10-Vehicle Care_en_US
Vehicle Care
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Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-

12460272) - 2019 - crc - 5/8/18

300

VEHICLE CARE

Quality grades can be found where
applicable on the tire sidewall
between tread shoulder and
maximum section width. For
example:

Treadwear 200 Traction AA
Temperature A

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
(1½) 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

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
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

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 Safety Standard
No. 109. Grades B and A represent
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,
underinflation, or excessive
loading, either separately or in
combination, can cause heat
buildup and possible tire failure.

Detailed Information for 2019 Cadillac ats Owner Manual

Lists of information found in 2019 Cadillac ats Owner Manual - Page 301

  • 9. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law.

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