Your Responsibility
Increase the volume of the radio if the OnStar Advisor cannot be heard.
If the light next to the OnStar buttons is red, the system may not be functioning properly. Push 
and request a vehicle diagnostic check. If the light appears clear (no light appears), your OnStar subscription has expired and all services have been deactivated.
Push to confirm that the OnStar equipment is active.
See also:
Background
Given the fact that the vast majority of SUVs were rarely taken off-pavement
by their owners, much less driven under serious off-road conditions, a new type
of car-based "crossover SUV" ...
Using the Call Command
1. Press and hold for two
seconds. The system
responds with “Ready” followed by a tone.
2. Say “Call”. The system responds with “Call using
<phone name>. Please say the name ta ...
Voice Recognition
The Bluetooth system uses voice recognition to interpret
voice commands to dial phone numbers and name tags.
Noise: Keep interior noise levels to a minimum. The
system may not recognize voice com ...