Radio Reception - GMC Yukon Denali 2014 Owner's Manual

7-12 Infotainment System
XM Theftlocked: The SiriusXM
receiver in the vehicle could have
previously been in another vehicle.
For security purposes, SiriusXM
receivers cannot be swapped
between vehicles. If this message is
received after having the vehicle
serviced, check with your dealer.
XM Radio ID: If tuned to channel 0,
this message alternates with the
SiriusXM Radio eight-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.
Check Antenna: If this message
does not clear within a short period
of time, the receiver or antenna
could have a fault. Consult with your
dealer.
Check XM Receiver: If this
message does not clear within a
short period of time, the receiver
could have a fault. Consult with your
dealer.
XM Not Available: 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 mi). 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.
®
SiriusXM Satellite Radio
Service
SiriusXM Satellite Radio Service
gives digital radio reception from
coast to coast in the 48 contiguous
United States, and in Canada. Just
as with FM, tall buildings or hills can
interfere with satellite radio signals,
causing the sound to fade in and
out. In addition, traveling or standing
under heavy foliage, bridges,
garages, or tunnels may cause loss
of the SiriusXM signal for a period
of time.