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:
Adding Equipment to the Airbag-Equipped Vehicle
Adding accessories that change the
vehicle's frame, bumper system,
height, front end or side sheet
metal, may keep the airbag system
from working properly. The
operation of the airbag system ...
Compass
There is a compass display in the Driver Information Center (DIC).
The compass receives its heading and other information from the Global Positioning System (GPS) antenna, StabiliTrak, and vehicle sp ...
DIC Warnings and Messages
Messages are displayed on the DIC to notify the
driver that the status of the vehicle has changed
and that some action may be needed to correct the
condition. Multiple messages may appear one
afte ...