2003 Chevrolet Tahoe Owner's Manual - Page 232

XMTMRadio Messages Radio Display Action 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 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 your receiver is being updated, and no action is required. This process should take no longer than 30 seconds. Your system is functioning correctly, but you are in a location that is blocking the XM signal. When you move into an open area, the signal should return. Your 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 o your f presets, you may need to choose another station for that preset button. No Signal I Loading XM Acquiring channel audio (after 4 second delay) Channel not in service CH Unavail Channel no longer available his time on this 3-81