2003 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 278

DVD Distortion You may experience audio distortion in the IR headphones when operating cellular phones, scanners, CB radios, Global Position Systems (GPS)*; two-way radios, mobile fax, or walkie talkies. It may be necessary to turn off the DVD player when operating one of these devices in or near the vehicle. * Excludes the Onstar@System. XMTMSatellite Radio Service XMTM Satellite Radio gives you digital radio reception from coast to coast. Just as with FM, tall buildings or hills can interfere with Satellite radio signals, causing the sound to come and go. Your radio may display "NO SIGNAL" to indicate interference. DAB Radio DAB gives you digital radio reception. Just as with FM, tall buildings or hills can interfere with radio signals, causing the sound to come and go. Your radio may display "NO SIGNAL" to indicate interference. Understanding Radio Reception AM The range for most AM stations is greater than for FM, especially at night. The longer range, however, can cause stations to interfere with each other. AM can pick up noise from things like storms and power lines. Try reducing the treble to reduce this noise if you ever get it. Care of Your Cassette Tape Player A tape player that is not cleaned regularly can cause reduced sound quality, ruined cassettes or a damaged mechanism. Cassette tapes should be stored in their cases away from contaminants, direct sunlight and extreme heat. If they aren't, they may notoperate properly or may cause failure of the tape player. Your tape player should be cleaned regularly after every 50 hours of use. Your radio may display CLEAN to indicate that you have used your tape player for 50 hours without resetting the tape clean timer. If this message appears on the display, your cassette tape player needs to be cleaned. It will still play tapes, but you should clean it as soon as possible to prevent damage to your tapes and player. 3-123 FM Stereo FM stereo will give you the best sound, but FM signals will reach only about 10 to 40 miles (1 6 to 65 km). Tall buildings or hills can interfere with FM signals, causing the sound to come and go.