2004 GMC Envoy Owner's Manual - Page 186

XM™ Satellite Radio Service XM™ is a satellite radio service that is based in the 48 contiguous United States. XM™ offers 100 coast to coast channels including music, news, sports, talk, and children's programming. XM™ provides digital quality audio and text information that includes song title and artist name. A service fee is required in order to receive the XM™ service. For more information, contact XM™ at www.xmradio.com or call 1-800-852-XMXM (9696). 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 at faster vehicle speeds. To turn automatic volume off, press this button until AVOL OFF appears on the display. DISPL (Display): Press this knob to switch the display between the radio station frequency and the time. When the ignition is off, press this knob to display the time. For RDS, press the DISPL knob to change what appears on the display while using RDS. The display options are station name, RDS station frequency, PTY, and the name of the program (if available). For XM™ (if equipped), press the DISPL knob while in XM™ mode to retrieve four different categories of information related to the current song or channel: Artist, Song Title, Category or PTY, Channel Number/ Channel Name. To change the default on the display, press the DISPL knob until you see the display you want, then hold the knob for two seconds. The radio will produce one beep and the selected display will now be the default. Playing the Radio PWR (Power): Press this knob to turn the system on and off. VOL (Volume): Turn this knob to increase or to decrease the volume. AUTO VOL (Automatic Volume): With automatic volume, the audio system will adjust automatically to make up for road and wind noise as you drive by increasing the volume as vehicle speed increases. 3-66