2006 GMC Envoy Owner's Manual - Page 230

XM™ Radio Messages Radio Display Message XL (Explicit Language Channels) Condition XL on the radio display, after the channel name, indicates content with explicit language. Updating encryption code Loss of signal Action Required These channels, or any others, can be blocked at a customer's request, 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. 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. The radio system is acquiring and processing audio and text data. No action is needed. This message should disappear shortly. This channel is not currently in service. Tune to another channel. This previously assigned channel is no longer assigned. Tune to another station. If this station was one of the presets, choose another station for that preset button. No artist information is available at this time on this channel. The system is working properly. No song title information is available at this time on this channel. The system is working properly. No Signl Loading Acquiring channel audio (after 4 second delay) Channel not in service Channel no longer available Artist Name/Feature not available Song/Program Title not available Off Air CH Unavl No Info No Info 3-86