Department Of Transportation Uniform TireQuality Grades

The following tire grading categories were established by the National Highway Traffic Safety Administration. The specific grade rating assigned by the tire’s manufacturer in each category is shown on the sidewall of the tires on your vehicle.

All passenger car tires must conform to Federal safety requirements in addition to these grades.

See also:

Service (Service)
Through the “Service” function it is possible to receive information connected with correct vehicle maintenance. The “Service schedule” includes vehicle maintenance every 20,000 km (or 12,000 ...

Lower vents
(C) - (D) Fixed vents for conveying air to the footwell. ...

Replacement Parts
Use of genuine parts for normal/scheduled maintenance and repairs is highly recommended to ensure the designed performance. Damage or failures caused by the use of non-genuine parts for maintenanc ...