OnStar®
OnStar OverviewWheel Alignment and Tire Balance
The tires and wheels were aligned and balanced at the factory to provide the
longest tire life and best overall performance. Adjustments to wheel alignment and
tire balancing are not necessary on a regular basis. Consider an alignment check
if there is unusual tire wear or the vehicle is signi ...
Power Outlets
The accessory power outlets can be used to plug in electrical equipment, such
as a cell phone or MP3 player.
The vehicle has an accessory power outlet in front of the cupholders on the center
stack.
Open the cover to access and replace when not in use.
Warning
Power is always supplied to the ...
Tire Designations
Tire Size
The following is an example of a typical passenger vehicle tire size.
(1) Passenger (P-Metric) Tire: The United States version of a metric tire sizing
system. The letter P as the first character in the tire size means a passenger vehicle
tire engineered to standards set by the U. ...