Tread wear
The tread wear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified U.S. Government test course. For example, a tire graded 150 would wear one and one-half times as well on the government course as a tire graded 100.
The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm, due to variations in driving habits, service practices and differences in road characteristics and climate conditions.
See also:
Step-by-step instructions
The following steps have been developed as required of all manufacturers under
Title 49, Code of U.S. Federal Regulations, Part 575 pursuant to the "National Traffic
and Motor Vehicle Safety ...
Deactivating
Press and hold the closing button () in the tailgate until you
hear two short tones.
...
Important safety notes
WARNING
In order to avoid possible loss of vehicle
control, all seat, head restraint, steering
wheel and rear view mirror adjustments, as
well as fastening of seat belts, must be done
before ...