Overview of Tire Quality Grading Standards
The Uniform Tire Quality Grading is a U.S.
Government requirement. Their purpose is to provide drivers with consistent and reliable information regarding tire performance. Tire manufacturers are required to grade tires using three performance factors: tread wear 1, tire traction 2, and temperature resistance 3. Although not a Government of Canada requirement, all tires made for sale in North America have these grades branded on the sidewall.
The actual values for tires are vehiclespecific and may deviate from the values in the illustration.
Where applicable, the tire grading information can be found on the tire sidewall between the tread shoulder and maximum tire width.
For example:
All passenger car tires must conform to the statutory safety requirements in addition to these grades.
See also:
Direction of rotation
Tires with a specified direction of rotation
have additional benefits, e.g. if there is a risk
of hydroplaning. You will only gain these
benefits if the correct direction of rotation is
mainta ...
Lane recommendations
Overview
On multilane roads, COMAND can display
lane recommendations for the next change of
direction. The corresponding data must be
available in the digital map.
COMAND displays lane recomme ...
Hazard warning lamps
The hazard warning lamps automatically
switch on if:
- an air bag is deployed.
- the vehicle is slowed down severely from a
speed of over 45 mph(70 km/h) and comes
to a halt.
- To switch on ...