2003 GMC Yukon Owner's Manual - Page 254

Playing the Radio PWR (Power): Push this knob to turn the system on and off. VOLUME: Turn the knob to increase or to decrease volume. AUTO VOL (Automatic Volume): With automatic volume, your audio system will adjust automatically to make up for road and wind noise as you drive by increasing the volume as vehicle speed increases. Set the volume at the desired level. Press this button to select LOW, MEDIUM or HIGH. AVOL will appear on the display. Each higher setting will provide more volume compensation as vehicle speed increases. To turn automatic volume off, press this button until AVOL OFF appears on the display. RCL (Recall): Push this knob to switch the display between the radio station frequency and the time. Pushing this knob with the ignition off will display the time. For XM™ (USA only, if equipped), push this knob while in XM™ mode to retrieve various pieces of information related to the current song or channel. By pushing and releasing this knob, you may retrieve four different categories of information: Artist, Song Title, Category or PTY, Channel Number/Channel Name. 3-100 To change the default on the display, push this knob until you see the display you want, then hold the knob until the display flashes. The selected display will now be the default. Finding a Station BAND: Press this button to switch between AM, FM1, FM2, or XM1, XM2 (USA only, if equipped). The display will show your selection. TUNE: Turn this knob to select radio stations. sSEEK t: Press the right or the left arrow to go to the next or to the previous station and stay there. The radio will seek only to stations that are in the selected band and only to those with a strong signal. sSCAN t: Press and hold either SCAN arrow for two seconds until SC appears on the display and you hear a beep. The radio will go to a station, play for a few seconds, then go on to the next station. Press either SCAN arrow again to stop scanning.