Audio System
When using the Bluetooth system,
sound comes through the vehicle's
front audio system speakers and
overrides the audio system. Use the
VOL/ 
knob during a call to
change the volume level. The
adjusted volume level remains in
memory for later calls. The system
maintains a minimum volume level.
See also:
Initial Drive Information
This section provides a brief
overview about some of the
important features that may or may
not be on your specific vehicle.
For more detailed information, refer
to each of the features which ...
Making a Call
To make a call:
1. Press once or twice, depending
on the radio.
2. Enter the character sequence. See “Entering a Character Sequence” in Operation
for more information.
3. Select Call ...
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. ...