GM Service Manual Online
For 1990-2009 cars only

Your AM-FM antennas are located in the windshield and rear window. Be sure that the inside surfaces of the windshield and rear window are not scratched and that the lines on the glass are not damaged. If the inside surfaces are damaged, they could interfere with radio reception. Also, for proper radio reception, the antenna connectors at the top-center of the front windshield and the rear window need to be properly attached to the posts on the glass.

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 the vehicle warranty.

Notice: Using a razor blade or sharp object to clear the inside of the windshield or rear window may affect radio reception or damage the rear window defogger. Repairs would not be covered by your warranty. Do not clear the inside windshield or rear window with sharp objects.

If, when you turn on your rear window defogger, you hear static on your radio station, it could mean that a defogger grid line has been damaged. If this is true, the grid line must be repaired.

If you choose to add an aftermarket cellular telephone to your vehicle, and the antenna needs to be attached to the glass, be sure that you do not damage the grid lines for the AM-FM antennas or place the cellular telephone antenna over the grid lines.