Department Of Transportation Uniform Tire Quality Grades - Fiat 500x User Manual

Dark Vapor Or Black Satin Chrome Wheels
If your vehicle is equipped with Dark Vapor or Black Satin Chrome wheels DO NOT
USE wheel cleaners, abrasives or polishing compounds. They will permanently damage
this finish and such damage is not covered by the New Vehicle Limited Warranty. USE
ONLY MILD SOAP AND WATER WITH A SOFT CLOTH. Used on a regular basis; this
is all that is required to maintain this finish.
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 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 characteristics 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 performance.
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.
MAINTAINING YOUR VEHICLE
CAUTION!
WARNING!
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