2011 Chevrolet Silverado 1500 Regular Cab Owner's Manual - Page 43

In Brief OnStar Steering Wheel Controls This vehicle may have a Talk/Mute button that can be used to interact with OnStar Hands-Free calling. See Steering Wheel Controls on page 5‑2 for more information. On some vehicles, the Talk button can be used to dial numbers into voice mail systems, or to dial phone extensions. See the OnStar Owner's Guide for more information. 1-37 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 Q 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 Q to confirm that the OnStar equipment is active.