Diversity Antenna System; Xm™ Satellite Radio Antenna System - GMC Cadillac CTS 2004 Owner's Manual

Diversity Antenna System

The AM-FM antenna is integrated with the rear window
defogger, located in the rear window. Make sure that
the inside surface of the rear window is not scratched
and that the grid lines on the glass are not damaged.
If the inside surface is damaged, it could interfere
with radio reception.
Notice: Do not apply aftermarket glass tinting with
metallic film. The metallic film in some tinting
materials will interfere with or distort the incoming
radio reception. Any damage caused to your
backglass antenna due to metallic tinting materials
will not be covered by your warranty.
Notice: Do not try to clear frost or other material
from the inside of the front windshield and rear
window with a razor blade or anything else that is
sharp. This may damage the rear window defogger
grid and affect your radio's ability to pick up
stations clearly. The repairs wouldn't be covered by
your warranty.
If static is heard on the radio, when the rear window
defogger is turned on, it could mean that a defogger grid
line has been damaged. If this is true, the grid line
must be repaired.
If adding an aftermarket cellular telephone to your
vehicle, and the antenna needs to be attached to the
glass, make sure that the grid lines for the AM-FM
antennas are not damaged. Make sure the cellular
telephone antenna does not touch a grid line.
XM™ Satellite Radio
Antenna System
The XM™ Satellite Radio antenna is located on the roof
of your vehicle. Keep this antenna clear of snow and
ice build up for clear radio reception.
3-127