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:
Dinghy Towing
Dinghy Towing
Notice:
If the vehicle is towed
with all four wheels on the
ground, the drivetrain
components could be damaged.
The repairs would not be covered
by the vehicle warranty. Do ...
Setting the Clock (Radio with CD and Touchscreen)
The clock menu can be only be used with the radio on while in ON/RUN or ACC/ACCESSORY.
To set the time:
1. Press the CONFIG button to enter the menu options or press H. Turn the TUNE/MENU
knob to ...
Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if ...