Jeep Liberty: Temperature Grades - Department Of Transportation Uniform Tire Quality Grades - If You Need Consumer Assistance - Jeep Liberty Owner's ManualJeep Liberty: 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 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 Vehicle 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, under-inflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure.

    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 govern ...

    See also:

    Semi-automatic Operation
    You can manually select various functions of the climate control system when it is in fully automatic mode. All other features remain automatically controlled. Making any manual selection ca ...

    Operating an iPod
    Connecting an iPod enables you to enjoy music from the vehicle speakers. ■ Connecting an iPod Open the cover and connect an iPod using an iPod cable. Turn on the power of the iPod if it ...

    Air conditioner button
    Air conditioner button The button positions and their functions are as follows. ON: The air conditioner operates while the fan is running. Push the button to select this position. The indic ...