2011 Chevrolet Impala Owner's Manual - Page 187

Infotainment System 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. 7-15 Audio Players CD Player Some CD players can play MP3 CD-R or CD-RW discs. See "MP3" later in this section for more information. The CD player can play the smaller 8 cm (3 in) single discs with an adapter ring. Satellite Radio Antenna The XM Satellite Radio antenna is located on the roof of the vehicle. Keep the antenna clear of obstructions for clear radio reception. If the vehicle has a sunroof, the performance of the XM system (if equipped) may be affected if the sunroof is open. Notice: If a label is added to a CD, more than one CD is inserted into the slot at a time, or an attempt is made to play scratched or damaged CDs, the CD player could be damaged. While using the CD player, use only CDs in good condition without any label, load one CD at a time, and keep the CD player and the loading slot free of foreign materials, liquids, and debris. If an error displays, see "CD Messages" later in this section. Care of the CD Player Do not add labels to a disc. It could get caught in the CD player. Use a marking pen to write on the top of the disc if a description is needed. Do not use CD lens cleaners. They could damage the CD player.