See also:

Using the “Dial” or “Call” Command
1. Press and hold for two seconds. 2. Say “Dial” or “Call.” 3. Say the entire number without pausing, or say the name tag. Once connected, the person called will be heard through the audio ...

Using Universal Remote
Press and hold the appropriate Universal Remote button for at least half of a second. The indicator light will come on while the signal is being transmitted. ...

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 ...