Your Responsibility
Increase the volume of the radio if the OnStar Advisor cannot be heard.
If the light next to the OnStar buttons is red, the system may not be functioning properly. Push 
and request a vehicle diagnostic check. If the light appears clear (no light appears), your OnStar subscription has expired and all services have been deactivated.
Push to confirm that the OnStar equipment is active.
See also:
When the Light Flashes First and Then Is On Steady
If the light flashes for about a minute and then stays on, there may be a problem
with the TPMS. If the problem is not corrected, the light will come on at every
ignition cycle. See Tire Pressure ...
3.5mm Jack
Connect a 3.5mm (1/8 in) cable to
the auxiliary input jack to use a
portable audio player.
Playback of an audio device that is
connected to the 3.5mm jack can
only be controlled using the con ...
Heated Steering Wheel
For vehicles with a heated steering
wheel, the button for this feature is
located on the climate control
system.
: Press to turn the heated
steering wheel on or off. A light on
the button ...