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:
Removing the Flat Tire and
Installing the Spare Tire
1. Do a safety check before proceeding. See Changing
a Flat Tire.
2. Turn the wheel wrench counterclockwise to loosen
all the wheel nuts, but do no remove them yet.
3. Turn the jack handle cou ...
Volume Control
VOL/ (Volume/Power): Turn to
adjust the volume.
(Phone/Mute): For vehicles with
OnStar®, press and hold to mute
the infotainment system. Press and
hold again, or turn the VOL/
knob t ...
RDS Messages
INFO (Information): If the current station has a
message, the information symbol displays.
Press this button to see the message. The
message can display the artist, song title, call in
phone num ...