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.
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Comfortable, quiet ride
In addition to delivering surprising performance, Rainier's refined
powertrains and precision-engineered chassis system contribute to a comfortable,
quiet ride - a Buick distinction throughout its ...
Onstar.com
The website provides access to
account information, manages the
OnStar subscription, and allows
viewing of videos of each service.
Get subscription plan pricing and
sign up for OnStar Vehicle ...
Height Adjustment
Height Adjustment
Press and hold the top or bottom of
the switch to raise or lower the seat.
Release the switch when the
desired height is reached. ...