2003 GMC Yukon Owner's Manual - Page 278

Q SOURCE R: Press this button to select AM, FM1, FM2, or XM1 or XM2, (USA only, if equipped), or a cassette tape or CD. The cassette or CD must be loaded to play. Available loaded sources are shown on the display as a tape or a CD symbol. Q SEEK R: Q VOLR: Press the up or the down arrow to seek to the next or to the previous radio station and stay there. Press the up or the down arrow to increase or to decrease volume. 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. FM Stereo FM stereo will give you the best sound, but FM signals will reach only about 10 to 40 miles (16 to 65 km). Tall buildings or hills can interfere with FM signals, causing the sound to come and go. DVD Distortion You may experience audio distortion in the IR headphones when operating cellular phones, scanners, CB radios, Global Positioning 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. XM™ Satellite Radio Service (48 Contiguous US States) XM™ 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. 3-124