OnStar Services

See also:

Odometer
The odometer shows how far the vehicle has been driven, in either kilometers or miles. This vehicle has a tamper-resistant odometer. The digital odometer will read 999,999 if it is turned back. ...

Tire Pressure Monitor
This vehicle may have a Tire Pressure Monitor System (TPMS). The Tire Pressure Monitor alerts you when a significant reduction in pressure occurs in one or more of the vehicle’s tires ...

Erasing Speed Memory
When you turn off the cruise control or the ignition, the cruise control set speed memory is erased. ...