Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and a half (1½) 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.
See also:
Solid structure
At the core of Rainier's quiet ride quality are best-in-class body-stiffness
attributes. With its all-out dedication to isolation from road noise and
vibration, Rainier achieves sound levels some ...
Towing
General Towing Information
The vehicle is neither designed nor intended to tow a trailer. ...
Automatic Crash Response
In a crash, built in sensors can automatically alert an
OnStar advisor who is immediately connected to
the vehicle to see if you need help. ...