Uniform Tire Quality Grading Standards

A uniform standard to grade the quality of tires with regards to tread quality, tire traction and temperature characteristics. Ratings are determined by tire manufacturers using U.S.

government testing procedures. The ratings are molded into the sidewall of the tire.

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    Function restrictions
    Depending on the DVD, it is possible that certain functions or actions described in this section will be temporarily blocked or may not function at all. As soon as you try to activate these fu ...

    Direction of rotation
    Tires with a specified direction of rotation have additional benefits, e.g. if there is a risk of hydroplaning. You will only gain these benefits if the correct direction of rotation is mainta ...

    Checking tire pressure manually
    To determine and set the correct tire pressure, proceed as follows: Remove the valve cap of the tire that is to be checked. Press the tire pressure gauge securely onto the valve. Read the ...