2003 GMC Yukon Owner's Manual - Page 247

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. Your system is working properly. No text or informational messages are available at this time on this channel. Your system is working properly. There are no channels available for the category you selected. Your system is working properly. The XM receiver in your vehicle may have previously been in another vehicle. For security purposes, XM receivers cannot be swapped between vehicles. If you receive this message after having your vehicle serviced, check with the servicing facility. If you tune to channel 0, you will see this message alternating with your XM Radio 8 digit radio ID label. This label is needed to activate your service. If you receive this message when you tune to channel 0, you may have a receiver fault. Consult with your dealer. If this message does not clear within a short period of time, your receiver may have a fault. Consult with your retail location. Radio ID Radio ID label (channel 0) Radio ID not known (should only be if hardware failure) Hardware failure Unknown Chk XMRcvr 3-93