GMC 2007 Envoy Denali Owner's Manual page 278

Radio Display Message
No Info
No Info
No Info
Not Found
XM Locked
Radio ID
Unknown
Chk XMRcvr
278
Condition
Song/Program Title
not available
Category Name
not available
No Text/Informational
message available
No channel available for
the chosen category
Theft lock active
Radio ID label (channel 0) If tuned to channel 0, this message alternates with the
Radio ID not known
(should only be if
hardware failure)
Hardware failure
Action Required
No song title information is available at this time on this
channel. The system is working properly.
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 dealer.
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
could be a receiver fault. Consult with your dealer.
If this message does not clear within a short period of time,
the receiver could have a fault. Consult with your dealer.