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:
Dual Automatic Climate Control System
A. Driver and Passenger Heated Seats (If Equipped)
B. Driver and Passenger Temperature Controls
C. Air Delivery Modes
D. Heated Steering Wheel (If Equipped)
E. Recirculation
F. Air Conditi ...
Customer Assistance for Text Telephone (TTY) Users (U.S. and Canada)
To assist customers who are deaf,
hard of hearing, or speech-impaired
and who use Text Telephones
(TTYs), Buick has TTY equipment
available at its Customer Assistance
Center. Any TTY user ca ...
Folding Mirrors
Manual Foldaway Mirrors
These mirrors can be folded inward
to prevent damage when going
through an automatic car wash. To
fold, pull the mirror toward the
vehicle. Push the mirror outward to ...