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:
Tread
The part of the tire that comes into contact
with the road. ...
Important notes on tire pressure
WARNING
Should the tire pressure drop repeatedly:
- check the tire for foreign bodies.
- check whether the wheel is losing air or the
valve is leaking.
- make sure that onl ...
Problems with the navigation system
Problem
Possible causes/consequences and
Solutions
COMAND is unable to
continue route
guidance after the
journey has been
interrupted.
Route guidance is canc ...