Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.
See also:
Phone Settings
See Bluetooth (Overview) or Bluetooth
(Infotainment Controls) or Bluetooth (Voice
Recognition) or
Bluetooth (UHP Mexico Only) in the “Phone” section for
more information on phone settings. ...
Engine Overheating
The vehicle has several indicators to warn of engine
overheating.
You will find a warning light about a hot engine as well
as an engine coolant temperature gage on the
instrument panel cluster. ...
Call Waiting
Call waiting must be supported on the Bluetooth phone
and enabled by the wireless service carrier to work.
• Press to answer an incoming call
when
another call is active. The original call i ...