OnStar Services
See also:
Brake Adjustment
Every time the brakes are applied, with or without the vehicle moving, the brakes
adjust for wear. ...
If the System Needs Service
If the navigation system needs service and the steps listed here have been followed
but there are still problems, see your dealer for assistance. ...
Tire Pressure Monitor
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The TPMS warning light alerts you
to a significant loss in pressure of
one of the vehicle's tires. If the
warning light comes on ...






