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:
OnStar® Virtual Advisor
OnStar® Virtual Advisor is a feature of OnStar®
Hands-Free Calling that uses your minutes
to access location-based weather, local traffic
reports, and stock quotes. By pressing the phone
button ...
Auto Rear Defog
If equipped, this will allow you to
turn the auto rear defog on or off.
This feature will automatically turn
on the rear defogger when it is cold
outside.
Press SELECT when Auto Rear
Defog i ...
Windshield Wiper/Washer
The windshield wiper lever is on the side of the steering column. With the ignition in ACC/ ACCESSORY or ON/RUN, move the windshield wiper lever to select the wiper speed.
2: Use for fast wipes.
1 ...