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:
Your Responsibility
Increase the volume of the radio if the OnStar advisor
cannot be heard.
If the light next to the OnStar buttons is red, the system
may not be functioning properly. Press
and request
a vehicle ...
Home Page Features
Various functions are disabled when
the vehicle is moving.
Press the Now Playing screen
button to display the active source
page. The sources available are
AM, FM, XM (if equipped), CD,
USB ...
Bluetooth (Infotainment Controls)
For information about how to navigate the menu system using the infotainment controls, see Operation
.
Pairing
A Bluetooth-enabled cell phone must be paired to the Bluetooth system first and then ...