GMC 2008 Envoy - Manual (Page 220)

XM Radio Messages
If you have a Radio with CD or Radio with Six-Disc CD,
you can receive these radio display messages.
XL (Explicit Language Channels): These channels,
or any others, can be blocked at a customer’s request,
by calling 1-800-852-XMXM (9696).
Updating: The encryption code in the receiver is being
updated, and no action is required. This process should
take no longer than 30 seconds.
No Signal: The system is functioning correctly, but the
vehicle is in a location that is blocking the XM™ signal.
When the vehicle is moved into an open area, the signal
should return.
Loading XM: The audio system is acquiring and
processing audio and text data. No action is needed.
This message should disappear shortly.
CH Off Air: This channel is not currently in service.
Tune to another channel.
CH Unavail: This previously assigned channel is no
longer assigned. Tune to another station. If this station
was one of the presets, choose another station for
that preset button.
No Info: No artist, song title, category, or text
information is available at this time on this channel.
The system is working properly.
Not Found: There are no channels available for the
selected category. The system is working properly.
XM Locked: 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/retailer.
Radio ID: If tuned to channel 0, this message alternates
with the XM™ Radio 8 digit radio ID label. This label
is needed to activate the service.
Unknown: If this message is received when tuned
to channel 0, there could be a receiver fault. Consult
with your dealer/retailer.
Chk XMRcvr: If this message does not clear within a
short period of time, the receiver could have a fault.
Consult with your dealer/retailer.
If you have a Radio with CD (MP3), you can receive
these radio display messages.
XL (Explicit Language Channels): These channels,
or any others, can be blocked at a customer’s request,
by calling 1-800-852-XMXM (9696).
Updating: The encryption code in the receiver is being
updated, and no action is required. This process
should take no longer than 30 seconds.
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