Overview of Tire Quality Grading Standards

The Uniform Tire Quality Grading is a U.S. Government requirement. Their purpose

The Uniform Tire Quality Grading is a U.S. Government requirement. Their purpose is to provide drivers with consistent and reliable information regarding tire performance. Tire manufacturers are required to grade tires using three performance factors: tread wear 1, tire traction 2, and temperature resistance 3. Although not a Government of Canada requirement, all tires made for sale in North America have these grades branded on the sidewall.

in the illustration. The actual values for tires are vehiclespecific and may deviate from the values in the illustration.

Where applicable, the tire grading information can be found on the tire sidewall between the tread shoulder and maximum tire width.

For example:

All passenger car tires must conform to the statutory safety requirements in

All passenger car tires must conform to the statutory safety requirements in addition to these grades.

    See also:

    Important safety notes
    See the "Important safety notes" section. If ESP® detects that the vehicle is deviating from the direction desired by the driver, one or more wheels are braked to stabilize the vehic ...

    The suspension: a proven design in a new guise
    As on the E-Class, the front suspension takes the form of a 3-link front axle with McPherson struts, which has been especially modified for the new CLS. The key feature of this modified suspension ...

    Activating/deactivating Blind Spot Assist
    You can use the Blind Spot Assist function to activate or deactivate Blind Spot Assist or Active Blind Spot Assist. Press or on the steering wheel to select the DriveAssist menu. Press ...