Buick LaCrosse: Traction – AA, A, B, C - Uniform Tire Quality Grading - Wheels and Tires - Vehicle Care - Buick LaCrosse Owners ManualBuick LaCrosse: 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 straight-ahead 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 ...

    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 ...

    See also:

    Adjusting the Sound
    Press the MENU button to display the sound settings. Turn the selector knob to select an appropriate setting: bass, treble, fader, balance, SUBW* (subwoofer) and SVC (speedsensitive volume ...

    Storing preset stations
    Ten preset stations can be stored for each waveband (AM, FM1, etc.). Stored preset stations are selected using the number key buttons on the center console. Manually storing preset stations 1. Tun ...

    Wheel replacement
    When replacing the metal wheels for any reason, make sure the new wheels are equivalent to the original factory units in diameter, rim width and offset. WARNING A wheel that is not the correct siz ...