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:
Removing the Third Row Seats
To remove a third row seat:
1. Remove the cargo management system, if available and installed. See Cargo Management System on page 4‑4.
2. Remove anything on or under the seat.
Notice: Foldin ...
Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and
GPS signal reception. Cellular reception is required for OnStar to send remote signals
to the vehicle. ...
Entering and Exiting the Third Row
WARNING
Using the third row seating position while the second row is folded, or folded and tumbled, could cause injury in a sudden stop or crash. Be sure to return the seat to the passenger seating p ...