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:
Emergency
With Automatic Crash Response, the built-in system can automatically connect to help in a crash even if you cannot ask for it.
Push to connect to an Emergency Advisor. GPS technology is used to iden ...
Using the “Digit Store” Command
If an unwanted number is recognized by the system, say “Clear” at any time to clear the last number.
To hear all of the numbers recognized by the system, say “Verify” at any time.
1. Press a ...
Audio System
When using the in-vehicle Bluetooth system, sound comes through the vehicle's front audio system speakers and overrides the audio system. Use the audio system volume knob, during a call, to change the ...





