How to Detect a Tamper Condition
If 
is pressed and the horn sounds,
an attempted break-in occurred while the system was armed.
If the alarm has been activated, a message will appear on the DIC. See Anti-theft Alarm System Messages for additional information.
See also:
Finish Care
Occasional waxing or mild polishing of your
vehicle by hand may be necessary to remove
residue from the paint finish. You can get
GM-approved cleaning products from your dealer.
If your vehicle ha ...
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. Press
and request
a vehicle ...
Delayed Exit Lighting
If it is dark enough outside when you remove the key
from the ignition, the interior lamps will turn on and stay
on for about 25 seconds. This will give you time to
find the door pull handle or ...