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:
Steering Wheel Adjustment
The lever is located on the
left side of the steering
column.
To adjust the lever:
1. Hold the wheel and pull the lever toward you.
2. Move the steering wheel up or down into a
comfortable ...
Removing the Spare Tire and Tools
To access the spare tire and tools:
1. Open the trunk. See Trunk .
2. Lift the load floor.
A. Retainer Nut
B. Tool Bag Tether
C. Tool Bag
D. Spare Tire
3. Turn the retainer nut (A) counter ...
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Vehicle
Diagnostics, Remote Door Unlock,
Roadside Assistance, Turn-by-Turn
Navigation, and Hands-Free ...