USB GMC SIERRA 1500 2012 User Guide

Black plate (19,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Infotainment System 7-19
Tracks are played in the following
order:
.Play begins from the first track in
the first playlist and continues
sequentially through all tracks
in each playlist. When the last
track of the last playlist has
played, play continues from the
first track of the first playlist.
.Play begins from the first track
in the first folder and continues
sequentially through all tracks in
each folder. When the last track
of the last folder has played,
play continues from the first
track of the first folder.
File System and Naming
The song name that displays is the
song name that is contained in the
ID3 tag. If the song name is not
present in the ID3 tag, then the
radio displays the file name without
the extension (such as .mp3) as the
track name. Track names longer than
32 characters or 4 pages are
shortened. The display does not
show parts of words on the last
page of text and the extension of
the file name is not displayed.
Preprogrammed Playlists
CDs that have preprogrammed
playlists reated using WinAmp™,
MusicMatch™, or Real Jukebox™
software can be accessed; however,
there is no playlist‐editing capability
using the radio. These playlists are
treated as special folders containing
compressed audio song files.
Playlists that have an .m3u or .pls
file extension and are stored on a
USB device may be supported by
the radio with a USB port.
Playlists can be changed by
using the softkeys below
the
S
candc Ttabs,
the
fknob, the©SEEK button,
or the
¨SEEK button. An MP3
CD-R or CD-RW that has been
recorded without using file folders can be played. If a CD-R or CD-RW
contains more than the maximum
of 50 folders, 15 playlists, and
512 folders and files, the player
allows access and navigates up to
the maximum, but all items over the
maximum are not accessible.
Playing an MP3
4(Information):
Press to display
additional text information related to
the current song. If information is
available, the song title information
displays on the top line of the
display and artist information
displays on the bottom line.
When information is not available,
“NO INFO” displays.
f(Tune):Turn to select MP3s on
the CD currently playing.
©SEEK: Press to go to the start of
the track, if more than 10 seconds
have played. Press and hold or
press multiple times to continue
moving backward through tracks.

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7-20 Infotainment System
¨SEEK:Press to go to the next
track. Press and hold or press
multiple times to continue moving
forward through tracks.
sREV (Reverse): Press and hold
to reverse playback quickly. Sound
is heard at a reduced volume and
the elapsed time of the file displays.
Release
sREV to resume playing.
\FWD (Fast Forward): Press
and hold to advance playback
quickly. Sound is heard at a reduced
volume and the elapsed time of the
file displays. Release
\FWD to
resume playing. The elapsed time of
the file displays.
S c(Previous Folder): Press
the softkey below the
S ctab to
go to the first track in the previous
folder.
c T(Next Folder): Press the
softkey below the
c Ttab to go to
the first track in the next folder. RDM (Random):
Press to listen
to tracks in random, rather than
sequential order. To use random, do
one of the following:
For the Radio with CD (MP3) and
Radio with USB and CD (MP3):
1. Press the softkey positioned
under the RDM tab until Random
Current Disc displays.
2. Press the softkey again to turn off random play.
For the Radio with USB and
Six-Disc CD (MP3):
1. Press the softkey positioned under the RDM tab until
Randomize All Discs displays
to play tracks from all CDs
loaded in random order.
2. Press the softkey positioned under the RDM tab until Random
Current Disc displays to play
tracks from a single CD in
random order.
3. Press the same softkey again to turn off random play.
h(Music Navigator): Press the
softkey below the
htab to play
the files in order by artist or album.
The player scans the disc to sort the
files by artist and album ID3 tag
information. It can take several
minutes to scan the disc depending
on the number of files on the disc.
The radio may begin playing while it
is scanning in the background.
When the scan is finished, the disc
begins playing files in order by
artist. The current artist playing is
shown on the second line of the
display. Once all songs by that artist
are played, the player moves to the
next artist in alphabetical order and
begins playing files by that artist.
To listen to files by another artist,
press the softkey located below
either arrow tab. The disc goes to
the next or previous artist in
alphabetical order. Continue
pressing either softkey below the
arrow tab until the desired artist
displays.

Black plate (22,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
7-22 Infotainment System
The use of CD/DVD lens cleaners
is not advised, due to the risk of
contaminating the lens of the optics
with lubricants internal to the CD
and DVD player mechanism.
Notice:If a label is added to a
CD, more than one CD is inserted
into the slot at a time, or an
attempt is made to play scratched
or damaged CDs, the CD player
could be damaged. While using
the CD player, use only CDs in
good condition without any label,
load one CD at a time, and keep
the CD player and the loading slot
free of foreign materials, liquids,
and debris.
If an error displays, see “CD
Messages” later in this section.
Care of CDs and DVDs
If playing a CD-R or CD-RW, the
sound quality can be reduced due to
CD-R or CD-RW quality, the method
of recording, the quality of the music
that has been recorded, and the
way the CD-R or CD-RW has been
handled. Handle them carefully. Store CD-Rs or CD-RWs in their
original cases or other protective
cases and away from direct sunlight
and dust. The CD or DVD player
scans the bottom surface of the
disc. If the surface of a disc is
damaged, such as cracked, broken,
or scratched, the disc does not play
properly or not at all. Do not touch
the bottom side of a disc while
handling it; this could damage the
surface. Pick up discs by grasping
the outer edges or the edge of the
hole and the outer edge.
If the surface of a disc is soiled,
clean it with a soft, lint‐free cloth or
dampen a clean, soft cloth in a mild,
neutral detergent solution mixed
with water. Make sure the wiping
process starts from the center to
the edge.Audio Output
Only one audio source can be heard
through the speakers at one time.
An audio source is defined as DVD
slot, CD slot, XM, FM‐AM, front
auxiliary jack, USB port, or rear
auxiliary jack.
Press the
Obutton to turn the radio
on. The radio can be heard through
all of the vehicle speakers.
Front seat passengers can listen
to the radio (AM, FM, or XM if
equipped) by pressing the BAND
button or the DVD/CD AUX button to
select CD slot, DVD slot, front
auxiliary input, USB port, or rear
auxiliary input (if available).
If a playback device is plugged
into the radio’s front auxiliary input
jack, USB port, or the rear auxiliary
jack, the front seat passengers are
able to listen to playback from
this source through the vehicle
speakers. See “Using the Auxiliary
Input Jack” inAuxiliary Devices on
page 7‑32, or “Audio/Video (A/V)
Jacks” underRear Seat
Entertainment (RSE) System on
page 7‑37 for more information.

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7-26 Infotainment System
When the disc contains only
playlists and compressed audio
files, but no folders, all files are
located under the root folder. The
folder down and the folder up
buttons search playlists first and
then go to the root folder. When the
radio displays the name of the
folder, the radio displays ROOT.
Order of Play
Compressed audio files are
accessed in the following order:
.Playlists (Px).
.Files stored in the root directory.
.Files stored in folders in the root
directory.
Tracks are played in the following
order:
.Play begins from the first track in
the first playlist and continues
sequentially through all tracks in
each playlist. When the last
track of the last playlist has
played, play continues from the
first track of the first playlist.
.Play begins from the first track in
the first folder and continues
sequentially through all tracks in
each folder. When the last track
of the last folder has played,
play continues from the first
track of the first folder.
When play enters a new folder, the
display does not automatically show
the new folder name unless the
folder mode has been chosen as
the default display. The new track
name displays.
File System and Naming
The song name that displays is the
song name that is contained in the
ID3 tag. If the song name is not
present in the ID3 tag, then the
radio displays the file name without
the extension (such as .mp3) as the
track name.
Track names longer than
32 characters or 4 pages are
shortened. Parts of words on the
last page of text and the extension
of the file name do not display. Preprogrammed Playlists
Preprogrammed playlists that
were created using WinAmp™,
MusicMatch™, or Real Jukebox™
software can be accessed; however,
they cannot be edited using the
radio. These playlists are treated
as special folders containing
compressed audio song files.
Playlists that have an .m3u or .pls
file extension and are stored on a
USB device may be supported by
the radio with a USB port.
Playing an MP3 or WMA
(in Either the DVD or CD Slot)
If a disc is inserted into the top DVD
slot, the rear seat operator can turn
on the video screen and use the
remote control to navigate the CD
(tracks only).
f(Tune):
Turn to select MP3/WMA
files.
©SEEK: Press to go to the start of
the track, if more than five seconds
have played. Press and hold or
press multiple times, if less than

Black plate (33,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Infotainment System 7-33
player. If a portable audio player is
not connected,“No Input Device
Found” displays.
DVD/CD AUX (DVD/CD/
Auxiliary): Press to cycle through
DVD, CD, or Auxiliary when
listening to the radio. The DVD/CD
text tab and a message showing
track or chapter number will display
when a disc is in either slot. Press
again and the system automatically
searches for an auxiliary input
device, such as a portable audio
player. If a portable audio player
is not connected, “No Aux Input
Device” displays. If a disc is in
both the DVD slot and the CD slot,
the DVD/CD AUX button cycles
between the two sources and does
not indicate “No Aux Input Device.”
If a front auxiliary device is
connected, the DVD/CD AUX
button cycles through all available
options, such as: DVD slot, CD slot,
front auxiliary, and rear auxiliary
(if available). See “Using the
Auxiliary Input Jack” in this section,
or “Audio/Video (A/V) Jacks” underRear Seat Entertainment (RSE)
System on page 7‑37
for more
information.
Using the USB Port
Radios with a USB port can control
a USB storage device or an iPod®
using the radio buttons and knobs.
See “Playing an MP3” inCD Player
on page 7‑15 orCD/DVD Player on
page 7‑21 for information about how
to connect and control a USB
storage device or an iPod.
USB Support
The USB connector is located
on the instrument panel or in the
center console, and uses the
USB 2.0 standard.
USB‐Supported Devices
.USB flash drive
.Portable USB hard drive
.Fifth generation or later iPod
.iPod nano
.iPod touch
.iPod classic
Not all iPods and USB drives are
compatible with the USB port.
Make sure the iPod has the
latest firmware from Apple
®for
proper operation. iPod firmware
can be updated using the latest
iTunes
®application. See
www.apple.com/itunes.
For help with identifying the iPod, go
to www.apple.com/support.
Radios that have a USB port can
play .mp3 and .wma files that are
stored on a USB storage device as
well as AAC files that are stored on
an iPod.
USB‐Supported File and Folder
Structure
The radio supports:
.Up to 700 folders
.Up to eight folders in depth
.Up to 65,535 files.

Black plate (34,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
7-34 Infotainment System
.Folder and file names up to
64 bytes
.Files with an .mp3 or .wma file
extension
.AAC files stored on an iPod
.FAT16
.FAT32
Connecting a USB Storage
Device or iPod®
The USB port can be used to
control an iPod or a USB storage
device.
To connect a USB storage device,
connect the device to the USB port
located in the center console or on
the instrument panel.
To connect an iPod, connect one
end of the USB cable that came
with the iPod to the iPod’s dock
connector and connect the other
end to the USB port located in the
center console or on the instrument
panel. If the vehicle is on and the
USB connection works,“OK to
disconnect” and a GM logo may appear on the iPod, and iPod
appears on the radio display. The
iPod music appears on the radio’s
display and begins playing.
The iPod charges while it is
connected to the vehicle if the
vehicle is in the ACC/ACCESSORY
or ON/RUN position. When the
vehicle is turned off, the iPod
automatically powers off and will
not charge or draw power from the
vehicle's battery.
If you have an older iPod model that
is not supported, it can still be used
by connecting it to the auxiliary
input jack using a standard 3.5 mm
(1/8 in) stereo cable. See
“Using the
Auxiliary Input Jack” earlier for more
information.
Using the Radio to Control a
USB Storage Device or iPod
The radio can control a USB
storage device or an iPod using
the radio buttons and knobs, and
display song information on the
radio’s display.
f(Tune): Turn to select files.
©SEEK:Press to go to the start of
the track, if more than 10 seconds
have played. Press and hold or
press multiple times to continue
moving backward through tracks.
¨SEEK: Press to go to the next
track. Press and hold or press
multiple times to continue moving
forward through tracks.
sREV (Reverse): Press and hold
to reverse playback quickly. Sound
is heard at a reduced volume.
Release
sREV to resume playing.
The elapsed time of the file
displays.
\FWD (Fast Forward): Press
and hold to advance playback
quickly. Sound is heard at a reduced
volume. Release
\FWD to
resume playing. The elapsed time of
the file displays.
4(Information): Press to display
additional information about the
selected track.

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Infotainment System 7-35
Using Softkeys to Control a
USB Storage Device or iPod
The five softkeys below the radio
display are used to control the
functions listed below.
To use the softkeys:
1. Press the first or fifth softkeybelow the radio display to
display the functions listed
below, or press the softkey
below the function if it is
currently displayed.
2. Press the softkey below the tab with the function on it to use that
function.
j(Pause): Press the softkey
below
jto pause the track. The
tab appears raised when pause
is being used. Press the softkey
below
jagain to resume playback.
Back: Press the softkey below the
back tab to go back to the main
display screen on an iPod, or the
root directory on a USB storage
device.
c(Folder View): Press the
softkey below
cto view the
contents of the current folder on the
USB drive. To browse and select
files:
1. Press the softkey below
c.
2. Turn
fto scroll through the list
of folders.
3. Press
fto select the desired
folder. If there is more then one
folder, repeat Steps 1 and 2 until
the desired folder is reached.
4. Turn
fto scroll through the files
in the selected folder.
5. Press
fto select the desired file
to be played.
To skip through large lists, the five
softkeys can be used to navigate in
the following order:
.First softkey, first item in the list.
.Second softkey, 1% through the
list each time the softkey is
pressed.
.Third softkey, 5% through the list
each time the softkey is pressed.
.Fourth softkey, 10% through the
list each time the softkey is
pressed.
.Fifth softkey, end of the list.
h(Music Navigator): Press
the softkey below
hto view and
select a file on an iPod, using the
iPod's menu system. Files are
sorted by:
.Playlists
.Artists
.Albums
.Genres
.Songs
.Composers
To select files:
1. Press the softkey below
h.
2. Turn
fto scroll through the list
of menus.

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7-36 Infotainment System
3. Pressfto select the
desired menu.
4. Turn
fto scroll through the
folders or files in the
selected menu.
5. Press
fto select the desired file
to be played.
To skip through large lists, the five
softkeys can be used to navigate in
the following order:
.First softkey, first item in the list.
.Second softkey, 1% through the
list each time the softkey is
pressed.
.Third softkey, 5% through the list
each time the softkey is pressed.
.Fourth softkey, 10% through the
list each time the softkey is
pressed.
.Fifth softkey, end of the list. Repeat Functionality
To use Repeat:
Press the softkey below
"or'
to select between Repeat All and
Repeat Track.
"(Repeat All):
Press the softkey
below
"to repeat all tracks. The
tab appears lowered when Repeat
All is being used. This is the default
mode when a USB storage device
or iPod is first connected.
'(Repeat Track): Press the
softkey below
'to repeat one
track. The tab appears raised when
Repeat Track is being used.
Shuffle Functionality
To use Shuffle:
Press the softkey below
>,2,
C, or=to select between
Shuffle Off, Shuffle All Songs/
Shuffle Songs, Shuffle Album,
or Shuffle Folder.
>(Shuffle Off): Press the
softkey below
2to turn shuffle
off. This is the default mode when a
USB storage device or iPod is first
connected.
2(Shuffle All Songs/Shuffle
Songs): Press the softkey
below
=orCto shuffle all
songs on the USB storage device
or iPod.
C(Shuffle Album): Press the
softkey below
>to shuffle all
songs in the current album on
an iPod.
=(Shuffle Folder): Press the
softkey below
>to shuffle all
songs in the current folder on a USB
storage device.