Black plate (15,1)
GMC Sierra Denali Owner Manual - 2012 - 2nd - 11/10/11
Infotainment System
7-15
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.
XM
™
Satellite Radio Service
XM 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 XM signal for a period of time.
Cellular Phone Usage
Cellular phone usage may cause
interference with the vehicle's radio.
This interference may occur when
making or receiving phone calls,
charging the phone's battery,
or simply having the phone on. This
interference causes an increased
level of static while listening to the
radio. If static is received while
listening to the radio, unplug the
cellular phone and turn it off.
Satellite Radio Antenna
The XM Satellite Radio antenna is
located on the roof of the vehicle.
Keep the antenna clear of
obstructions for clear radio
reception.
If the vehicle has a sunroof, the
performance of the XM system
(if equipped) may be affected if the
sunroof is open.
Summary of Contents for 2012 GMC Sierra Denali
Page 6: ...Black plate 6 1 GMC Sierra Denali Owner Manual 2012 2nd 11 10 11 vi Introduction 2 NOTES...
Page 182: ...Black plate 10 1 GMC Sierra Denali Owner Manual 2012 2nd 11 10 11 6 10 Lighting 2 NOTES...
Page 250: ...Black plate 8 1 GMC Sierra Denali Owner Manual 2012 2nd 11 10 11 8 8 Climate Controls 2 NOTES...
Page 378: ...Black plate 40 1 GMC Sierra Denali Owner Manual 2012 2nd 11 10 11 10 40 Vehicle Care...
Page 438: ...Black plate 100 1 GMC Sierra Denali Owner Manual 2012 2nd 11 10 11 10 100 Vehicle Care 2 NOTES...
Page 443: ...Black plate 5 1 GMC Sierra Denali Owner Manual 2012 2nd 11 10 11 Service and Maintenance 11 5...
Page 445: ...Black plate 7 1 GMC Sierra Denali Owner Manual 2012 2nd 11 10 11 Service and Maintenance 11 7...