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:
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I don't walk away from every new model with a single overriding impression,
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What to do if...
Only a black screen is visible.
Switch on the system.
There are no options available on the screen.
Switch over between the display screens.
Radio stations or TV channels are grayed out ...
Gear shift indicator
The concept
The system recommends the most fuel efficient
gear in the current driving situation.
Displays
Indicators to shift up or down are displayed in
the instrument cluster.
...