Traction
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 based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics.
See also:
The concept
Speed limit detection
Speed limit detection uses a symbol in the
shape of a traffic sign to display the currently
detected speed limit. The camera at the base of
the interior rearview mirror detec ...
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 ...
What to do if …
What to do if…
> The current position cannot be displayed?
The position is in an unrecognized region, in a poor reception area, or the system
is in the process of determining the position. Rece ...