Department Of Transportation Uniform Tire Quality Grades - Fiat ABARTH 500 2017 User Manual

MAINTAINING YOUR VEHICLE
Dark Vapor Or Black Satin Chrome Wheels
If your vehicle is equipped with these specialty 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.
HAND WASH ONLY USING 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 as-
signed 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 gov-
ernment 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 condi-
tions 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.
CAUTION!
151