Infiniti QX: Traction AA, A, B and C - Uniform tire quality grading - Technical and consumer information - Infiniti QX Owner's ManualInfiniti QX: Traction AA, A, B and 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.

The traction grade assigned to this tire is 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 wou ...

    Temperature A, B and C
    The temperature grades 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:

    Voice training
    This is a feature designed to enable the system to better recognise the vocal characteristics of a user, once the training has been completed. To carry out Voice training: 1. Select Setup from the ...

    Warning and information messages
    WARNING Do not ignore warning messages. Take appropriate action and, when necessary, seek qualified assistance before driving the vehicle. Failure to do so could result in failure of vehicle ...

    DVD Display Error Messages
    The DVD display error message depends on the radio that is in the vehicle. The video screen can display one of the following: Disc Load/Eject Error: This message displays when there are disc load or ...