Multi-Band Antenna
The antenna located on the roof of the vehicle is used for the OnStar, XM Satellite Radio Service System, and GPS (Global Positioning System), if the vehicle has these features. Keep the antenna clear of obstructions for clear reception.
If the vehicle has a sunroof and it is open, the performance of OnStar, XM, and GPS can be affected.
See also:
Airbag System Messages
SERVICE AIRBAG
This message displays if there is a problem with the airbag system.
Take the vehicle to your dealer for service. ...
Key and Lock Messages
REPLACE BATTERY IN REMOTE KEY
This message displays if a Remote Keyless Entry (RKE) transmitter battery is
low. The battery needs to be replaced in the transmitter. See “Battery Replacement”
unde ...
Sunroof
A. Open or Close
B. Vent
On vehicles with a sunroof, the sunroof only operates when the ignition is in
the ACC/ACCESSORY or ON/RUN, or when Retained Accessory Power (RAP) is active. See
Retain ...