Danger, Warnings, and Cautions
Warning messages found on vehicle labels and in this manual describe hazards and what to do to avoid or reduce them. Danger indicates a hazard with a high level of risk which will result in serious injury or death. Warning or Caution indicates a hazard that could result in injury or death.
WARNING
These mean there is something that could hurt you or other people.
Notice: This means there is something that could result in property or vehicle
damage. This would not be covered by the vehicle's warranty.

A circle with a slash through it is a safety symbol which means “Do Not,” “Do not do this,” or “Do not let this happen.”
See also:
Radio Menus (Radio with CD and Touchscreen)
Tone Menu
To access the sound menu, press the TONE button.
Use the sound menu to adjust the following features:
Bass
Middle
Treble
EQ
Fade
Balance
Setting the Tone
To adjust the ba ...
Cellular and GPS Antennas
Avoid placing items over or near the
antenna to prevent blocking cellular
and GPS signal reception. Cellular
reception is required for OnStar to
send remote signals to the vehicle. ...
Checking the Restraint Systems
Now and then, make sure the safety belt reminder
light and all your belts, buckles, latch plates,
retractors and anchorages are working properly.
Look for any other loose or damaged safety
belt ...
