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:
Vehicle Data Recording and Privacy
This GM vehicle has a number of sophisticated computers that record
information about the vehicle’s performance and how it is driven.
For example, the vehicle uses computer modules to monitor and ...
Audio System
When using the in-vehicle Bluetooth
system, sound comes through the
vehicle's front audio system
speakers and over-rides the audio
system. Use the audio system
volume knob, during a call, to ...
Navigation
OnStar navigation requires the
Directions and Connections
service plan.
Push to receive directions or
have them sent to the vehicle
navigation screen. Destinations
can also be forwarded to ...