GMC 2010 Sierra 1500 Crew Cab Owner's Manual page 374

Press to go to the next radio station while in
AM, FM, or XM .
For vehicles with or without a navigation system:
Press to go to the next track or chapter while
sourced to the CD or DVD slot.
Press to select a track or a folder when navigating
folders on an iPod or USB device.
For vehicles with a navigation system:
1. Press and hold
the radio into SCAN mode, a station will play for
five seconds before moving to the next station.
2. To stop the SCAN function, press
While listening to a CD/DVD, press and hold
quickly move forward through the tracks. Release to
stop on the desired track.
Press to increase or to decrease
the volume.
4-150
until a beep is heard, to place
again.
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.
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.
to
When this happens, try reducing the treble on the radio.
FM signals only reach about 10 to 40 miles (16 to 65 km).
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.