Receiving a Call
When an incoming call is received, the audio system mutes and a ring tone is heard in the vehicle.
• Press 
and begin speaking to
answer the call.
• Press 
to ignore a call.
See also:
How to Reset the Engine Oil
Life System
Reset the system whenever the
engine oil is changed so that the
system can calculate the next
engine oil change. To reset the
system:
1. Turn the ignition to ON/RUN with
the engine off.
2. ...
Portable Audio Devices
Some vehicles have a 3.5 mm
(1/8 in) auxiliary input and a USB
port located in the center console.
External devices such as iPods®,
laptop computers, MP3 players, CD
changers, and USB storag ...
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
ownership has chan ...