Cadillac 2006 DTS Owner's Manual page 240

Radio Display
Message
No Info
CAT Not Found
XM Theftlocked
XM Radio ID
Unknown
Check XM Receivr
XM Feature
XM Not Available
3-110
XM™ Radio Messages (cont'd)
Condition
No Text/Informational
message available
No channel available for
the chosen category
Theft lock active
Radio ID label
(channel 0)
Radio ID not known
(should only be if
hardware failure)
Hardware failure
CAT button pressed
when not in XM mode
XM Not Available
Action Required
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
appears after having your vehicle serviced, check with
your dealer.
If tuned to channel 0, this message will alternate with the
XM™ Radio eight 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 dealer.
If this message does not clear within a short period of time,
the receiver may have a fault. Consult with your dealer.
The CAT function is exclusive to XM. The system is
working properly.
If this message does not clear within a short period of time,
the receiver may have a fault. Consult with your dealer.