Muting a Call
During a call, all sounds from inside the vehicle can be muted so that the person on the other end of the call cannot hear them.
To mute a call, press 
and
then say “Mute Call.”
To cancel mute, press and
then say “Un-mute Call.”
See also:
Blizzard Conditions
Being stuck in snow can be a
serious situation. Stay with the
vehicle unless there is help nearby.
If possible, use the Roadside
Service (U.S. and Canada) or Roadside Service
(Mexico).
To ge ...
Unable to Connect to OnStar
Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Push to try the
call again or try again after driving a
few miles into ...
A missing ingredient?
In order to make the CTS Sport Wagon appealing price-wise, the base car is
equipped with a 270-hp 3.0L V6, a 6-speed automatic gearbox and RWD. Price:
$44,325. Moving up to AWD adds an extra $2,62 ...