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:

Rubber tubing
Follow the “Service Schedule” to the letter as concerns braking and fuel line rubber tubing. Ozone, high temperatures and long absence of fluid in the system can in fact cause the hardening and cr ...

Main beam headlights
When the knurled ring is at push the lever towards the dashboard (stable position). The warning light on the instrument cluster will come on. Pulling the lever towards the steering wheel aga ...

External light failure
The warning light on the dial comes on (on certain versions together with the message on the display) when a failure is detected to one of the following lights: taillights, brake lights (3rd ...