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 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:
Treadwear indicators
Narrow bars (tread wear bars) that are
distributed over the tire tread. If the tire tread
is level with the bars, the wear limit of 1/16 in
(1.6 mm) has been reached. ...
Panic alarm
To activate: press
button 1 for at least one second.
An alarm sounds and the exterior lighting flashes.
To deactivate: press
button 1 again.
or
Insert the SmartKey into the
ignition loc ...
Sidewall
The part of the tire between the tread and the
bead. ...