Uniform Tire Quality Grading Standards
A uniform standard to grade the quality of tires with regards to tread quality, tire traction and temperature characteristics. Ratings are determined by tire manufacturers using U.S.
government testing procedures. The ratings are molded into the sidewall of the tire.
See also:
Tire tread
WARNING
Although the applicable federal motor vehicle
safety laws consider a tire to be worn when
the tread wear indicators (TWI) become
visible at approximately 1/16 in (1.6 mm), we r ...
Problems with the windshield wipers
The windshield wipers are obstructed
Leaves or snow, for example, may be obstructing the windshield wiper movement.
The wiper motor has been deactivated.
For safety reasons, you should remove t ...
Exterior mirror out of position
If an exterior mirror has been pushed out of
position, proceed as follows:
► Vehicles without electrically folding
exterior mirrors: move the exterior mirror
into the correct position manu ...