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 significantly pulling to one side or the other. Some slight pull to the left or right, depending on the crown of the road and/or other road surface variations such as troughs or ruts, is normal. If the vehicle is vibrating when driving on a smooth road, the tires and wheels may need to be rebalanced. See your dealer for proper diagnosis.
OnStar Additional Information
In-Vehicle Audio Messages
Audio messages may play important
information at the following times:
Prior to vehicle purchase.
Press to set up an account.
With the OnStar Basic Plan,
every 60 days.
After change in ownership and
at 90 days.
Transferring Service
Pres ...