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:
Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF
in each shift lever position.
The ignition should turn to LOCK/OFF only when the shift lever is in P (Park).
...
OnStar Additional Information
Transferring Service
Push to request account transfer
eligibility information. The Advisor can assist in canceling or removing account
information. If OnStar receives information that vehicle ow ...
Finding a Station
BAND: Press this button to switch between FM1,
FM2, AM, or XM1 or XM2 (if equipped). The
display shows the selection.
TUNE: Turn this knob to select radio stations.
SEEK
: Press either the S ...