Cadillac XLR-V 2006 Owner's Manual page 261

Radio Display Message
No Information
XM Theftlocked
XM Radio ID
Unknown
Check XM Receivr
Condition
No Text/Informational
message available
Theft lock active
Radio ID label
(channel 0)
Radio ID not known
(should only be if
hardware failure)
Hardware failure
Action Required
No text or informational messages are available at this time
on this channel. 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.
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