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 car tires must conform to Federal safety requirements in addition to these grades.
See also:
Jeep Compass Model Lineup
The 2011 Jeep Compass is available in three configurations: Compass, Latitude
and Limited. All are available with front-wheel drive, the Freedom Drive I
full-time, active 4x4 system or the Freedom ...
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 ...
TUNE Control
Turn the rotary TUNE/SCROLL control knob clockwise to increase or counterclockwise
to decrease the frequency. ...