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.
See also:
SERVICE PARKING ASSIST
This message displays if there is a
problem with the Ultrasonic Rear
Parking Assist (URPA) system.
Do not use this system to help you
park. See Ultrasonic Parking Assist for more information.
...
Vehicle Data Recording and Privacy
This GM vehicle has a number of sophisticated computers that record
information about the vehicle’s performance and how it is driven.
For example, the vehicle uses computer modules to monitor and ...
XM Messages
XL (Explicit Language
Channels): These channels, or any others, can be blocked by request, by
calling 1-800-929-2100 in the U.S. and 1-877-438-9677 in Canada.
XM Updating: The encryption code i ...