Three-Way Calling
Three-way calling must be supported on the cell phone and enabled by the wireless service carrier.
1. While on a call, press 
.
2. Say “Three-way call.”.
3. Use the dial or call command to dial the number of the third party to be called.
4. Once the call is connected,
press to link all callers
together.
See also:
Unable to Connect to OnStar
Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Push to try the
call again or try again after driving a
few miles into ...
Steering Wheel Controls
Steering Wheel Controls
For vehicles with audio steering wheel controls, some audio controls can be adjusted at the steering wheel.
Press to interact with the available Bluetooth, OnStar, or navig ...
Online Owner Center
Online Owner Center (U.S.) —
www.gmownercenter.com/buick
Information and services customized for your specific
vehicle — all in one convenient place.
• Digital owner manual, warranty infor ...