2006 GMC Envoy Owner's Manual - Page 220

XM™ Radio Messages (cont'd) Radio Display Message No Info No Info Not Found XM Locked Condition Category Name not available No Text/Informational message available No channel available for the chosen category Theft lock active Action Required No category information is available at this time on this channel. The system is working properly. No text or informational messages are available at this time on this channel. The system is working properly. There are no channels available for the selected category. The system is working properly. The XM receiver in the vehicle may have previously been in another vehicle. For security purposes, XM receivers cannot be swapped between vehicles. If this message is received after having your vehicle serviced, check with your GM dealer. If tuned to channel 0, this message will alternate with the XM Radio 8 digit radio ID label. This label is needed to activate the service. If this message is received when tuned to channel 0, there may be a receiver fault. Consult with your GM dealer. If this message does not clear within a short period of time, the receiver may have a fault. Consult with your GM dealer. Radio ID Radio ID label (channel 0) Radio ID not known (should only be if hardware failure) Hardware failure Unknown Chk XMRcvr 3-76