Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
SUSPENSION MODE SPORT
(CTS-V ONLY)
This message will be displayed
when sport mode is selected using
the Magnetic Ride Control button in
the center of the instrument panel.
See Magnetic Ride Control for more information. ...
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 m ...
Jump Starting
For more information about the vehicle battery, see Battery .
If the vehicle is a hybrid, see the hybrid supplement for more information.
If the vehicle's battery has run down, you may wan ...