2009 GMC Envoy Owner's Manual - Page 216

To change the default on the display, press the DISPL knob until the desired display appears, then press and hold this knob for two seconds. The radio produces one beep and the selected display becomes the default. INFO (Information): INFO displays when a current track has ID3 tag information. Press INFO to display the artist name and album contained in the tag. INFO disappears from the display when the information in the ID3 tag has finished. BAND: Press to listen to the radio when a CD is playing. The inactive CD remains inside the radio for future listening. CD AUX (Auxiliary): Press to play a CD when listening to the radio. The CD symbol displays when a CD is loaded. XM Radio Messages xL (Explicit Language Channels): These channels, or any others, can be blocked by calling 1-800-852-XMXM (9696). Updating: The encryption code in the receiver is being updated, and no action is required. This process should take no longer than 30 seconds. No Signal: The system is functioning correctly, but the vehicle is in a location that is blocking the XM signal. When the vehicle is moved into an open area, the signal should return. No Signl: The system is functioning correctly, but the vehicle is in a location that is blocking the XM signal. When the vehicle is moved into an open area, the signal should return. Loading XM: The audio system is acquiring and processing audio and text data. No action is needed. This message should disappear shortly. Loading: The radio system is acquiring and processing audio and text data. No action is needed. This message should disappear shortly. Z (Eject): Press to eject a CD. Eject can activate while either the ignition or the radio is off. CDs can be loaded while the ignition and the radio is off if this button is pressed first. 3-84