GMC 2003 Sierra 1500 Pickup Owner's Manual page 246

XMTM Radio Messages (cont'd)
XM Locked
Radio ID
Unknown
Chk XMRcvr
the chosen category
~ ~~ ~~
Theft lock active
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. I f you receive this
message after having your vehicle serviced, check with the
servicing facility.
Radio ID label
(channel 0)
~ ~~
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.
Radio ID not known
(should only be if
hardware failure)
If you receive this message when you tune to channel 0,
you may have a receiver fault. Consult with your dealer.
Hardware failure 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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