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:

    Auxiliary Devices
    The navigation system has an auxiliary input jack located on the faceplate and in the center console. This is not an audio output; do not plug the headphone set into the front auxiliary input jack. ...

    Read first — then drive safely
    Before driving your vehicle, read your Owner’s Manual carefully. This will ensure familiarity with controls and maintenance requirements, assisting you in the safe operation of your vehicle. ...

    Phonebook
    Contacts stored in the memory of a paired phone can be automatically downloaded to the vehicle’s phonebook each time the phone is connected to the system. See 138, TELEPHONE COMPATIBILITY. Cert ...