Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Radio(s)
VOL/ : Press to turn the system on and off. Turn to increase or decrease
the volume.
RADIO/BAND: Press to choose between FM, AM, or XM™, if equipped.
TUNE or TUNE/INFO: Turn to select radio sta ...
Headlamp Aiming
The headlamp aiming system has been preset at the factory.
If the vehicle is damaged in an accident, the aim of the headlamps can be
affected and adjustment could be necessary.
It is recommende ...
XM Weather
Press the Weather screen button to display the Current or Extended Forecast Weather.
The Extended Forecast Weather screen displays five days of the forecasted weather
at the vehicle’s current posit ...