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    Tread wear
    The tread wear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified U.S. government course. For example, a tire graded 150 wo ...

    Conditions for activation
    RACE START can be activated when: • the doors are closed. • the engine is running and it has reached an operating temperature of approximately 176 °F (80 °C). This is the case when the engine ...

    Restoring the factory settings
    Press the and buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. ...