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:
Setting the Clock (Radio with CD and Touchscreen)
The clock menu can be only be used with the radio on while in ON/RUN or ACC/ACCESSORY.
To set the time:
1. Press the CONFIG button to enter the menu options or press H. Turn the TUNE/MENU
knob to ...
Head Restraints
Adjust the head restraint so that the top of the
restraint is at the same height as the top of
the occupant’s head. This position reduces the
chance of a neck injury in a crash.
Pull the hea ...
Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if ...