GMC Sierra Owner's Manual page 161

160 Infotainment System
Caution
To avoid vehicle damage, unplug all
accessories and disconnect all accessory
cables from the vehicle when not in use.
Accessory cables left plugged into the
vehicle, unconnected to a device, could be
damaged or cause an electrical short if
the unconnected end comes in contact
with liquids or another power source such
as the accessory power outlet.
Playing from a USB
A USB mass storage device can be connected
to the USB port.
Gracenote
When plugging in a USB device, Gracenote
service builds voice tags for music. Voice
tags allow artists, albums with hard to
pronounce names, and nicknames to be used
to play music through voice recognition.
While indexing, infotainment features are
available.
My Media Library
MyMedia is only available when more than
one indexed device is connected. It allows
access to content from all indexed media
sources. MyMedia will show as an available
source in the Source page.
USB MP3 Player and USB Devices
The USB MP3 players and USB devices
connected must comply with the USB Mass
Storage Class specification (USB MSC).
to play a USB device:
1. Connect the USB.
2. Press MEDIA on the center stack until
the connected device is shown.
Use the following when playing an active
USB source:
: Touch to play the current media source.
: Touch to pause playback of the current
media source.
:
Press to seek to the beginning of the
current or previous track.
Press and hold to reverse quickly through
playback. Release to return to playing
speed. Elapsed time displays.
d
:
Press to seek to the next track.
Press and hold to advance quickly
through playback. Release to return to
playing speed. Elapsed time displays.
Shuffle : Touch the shuffle icon to play
music in random order.
USB Menu
Touch the Menu icon to display the USB
menu. The following may be available:
Shuffle : Touch to play the tracks randomly.
Touch again to stop shuffle.
Tone : Touch + or to adjust the tone
settings. See AM-FM Radio 0 156.
Auto Volume (If Equipped) : This feature
adjusts the volume based on the vehicle
speed. See AM-FM Radio 0 156.
Bose AudioPilot Noise Compensation
Technology (If Equipped : This feature
adjusts the volume based on the noise in
the vehicle and speed. See AM-FM Radio
0 156.
USB Browse Menu
When a list of songs, albums, artists,
or other types of media displays, the up and
down arrows and A-Z appear on the left