GMC 2011 Canyon - Manual (Page 163)

Black plate (13,1) GMC Canyon Owner Manual - 2011
Infotainment System 7-13
CH Unavl: 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.
Unauth: This channel is blocked or
cannot be received with your XM
Subscription package.
No Info: No artist, song title,
category, or text information is
available at this time on this
channel. The system is working
properly.
NotFound: No artist, song title,
category, or text information is
available at this time on this
channel. The system is working
properly.
XM Lock: The XM receiver in your
vehicle could 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.
Radio ID: If this message is
received when tuned to channel 0,
there could be a receiver fault.
Consult with your dealer.
Unknown: If this message is
received when tuned to channel 0,
there could be a receiver fault.
Consult with your dealer.
Check XM: If this message does
not clear within a short period of
time, the receiver could have a fault.
Consult with your dealer.
Radio Reception
Frequency interference and static
can occur during normal radio
reception if items such as cell phone
chargers, vehicle convenience
accessories, and external electronic
devices are plugged into the
accessory power outlet. If there is
interference or static, unplug the
item from the accessory power
outlet.
AM
The range for most AM stations is
greater than for FM, especially at
night. The longer range can cause
station frequencies to interfere
with each other. For better radio
reception, most AM radio stations
boost the power levels during the
day, and then reduce these levels
during the night. Static can also
occur when things like storms and
power lines interfere with radio
reception. When this happens, try
reducing the treble on the radio.
FM Stereo
FM signals only reach about
16 to 65 km (10 to 40 miles).
Although the radio has a built-in
electronic circuit that automatically
works to reduce interference, some
static can occur, especially around
tall buildings or hills, causing the
sound to fade in and out.