Subaru Legacy: Traction AA, A, B, C - Uniform tire quality grading standards - Consumer information and Reporting safety defects - Subaru Legacy Owners ManualSubaru Legacy: Traction AA, A, B, C

The traction grades, from highest to lowest, are AA, A, B and C. Those 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.

WARNING

The traction grade assigned to this tire is based on straightahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics.

    Treadwear
    The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would we ...

    Temperature A, B, C
    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 ...

    See also:

    Driving Through Water
    Driving through water more than a few inches/ centimeters deep will require extra caution to ensure safety and prevent damage to your vehicle. ...

    Reporting Safety Defects to the United States Government
    If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NH ...

    Protecting Discs
    When a disc is not being played, store it in its case to protect it from dust and other contamination. To prevent warpage, keep discs out of direct sunlight and extreme heat. To clean a disc, ...