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:
Transportation Options
Warranty service can generally be completed while you wait. However, if you are
unable to wait, GM helps to minimize inconvenience by providing several transportation
options. Depending on the cir ...
Exit Lighting
The interior lamps come on when the key is removed from the ignition. They turn
off automatically in 20 seconds. The lights do not come on if the dome override
button is pressed in. ...
Weatherstrips
Apply silicone grease on
weatherstrips to make them last
longer, seal better, and not stick or
squeak. See Recommended Fluids
and Lubricants. ...