2012 GMC SIERRA 1500 ABS

Black plate (26,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
5-26 Instruments and Controls
Antilock Brake System
(ABS) Warning Light
For vehicles with the Antilock Brake
System (ABS), this light comes on
briefly when the engine is started.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light then goes off.
If the ABS light stays on, turn the
ignition off. If the light comes on
while driving, stop as soon as it is
safely possible and turn the ignition
off. Then start the engine again to
reset the system. If the ABS light
stays on, or comes on again while
driving, the vehicle needs service.
If the regular brake system warning
light is not on, the vehicle still has
brakes, but not antilock brakes.If the regular brake system warning
light is also on, the vehicle does not
have antilock brakes and there is a
problem with the regular brakes.
See
Brake System Warning Light on
page 5‑25.
For vehicles with a Driver
Information Center (DIC), see Brake
System Messages on page 5‑40 for
all brake‐related DIC messages.
If the vehicle is a hybrid, see the
hybrid supplement for more
information.
Four-Wheel-Drive Light
For vehicles equipped with the
four-wheel-drive light, it comes on
when a vehicle with a manual transfer case is shifted into
four-wheel drive and the front axle
engages.
Some delay between the shifting
and the light coming on is normal.
See
Four-Wheel Drive on page 9‑40
for more information.
Tow/Haul Mode Light
For vehicles with the Tow/Haul
Mode feature, this light comes on
when the Tow/Haul Mode has been
activated.
For more information, see Tow/Haul
Mode on page 9‑39.

Black plate (7,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Infotainment System 7-7
EQ (Equalization):Press this
button to choose bass and treble
equalization settings designed for
different types of music. Selecting
MANUAL, or changing bass or
treble, returns the EQ to the manual
bass and treble settings.
Unique EQ settings can be saved
for each source.
Setting the Tone (Bass/
Midrange/Treble) (All Except
AM-FM Radio and Radio
with CD)
BASS/MID/TREB (Bass, Midrange,
or Treble): To adjust the bass,
midrange, or treble:
1. Press the
fknob until the tone
control tabs display.
2. Highlight the desired tone control tab by doing one of the
following:
.Press thefknob.
.Press the softkey under the
desired tab. 3. Adjust the setting by doing one
of the following:
.Turn thefknob clockwise
or counterclockwise.
.Press the¨SEEK,
or
©SEEK.
.Press the\FWD,
or
sREV.
If a station's frequency is weak or if
there is static, decrease the treble.
To quickly adjust bass, midrange,
or treble to the middle position,
press the softkey positioned under
the BASS, MID, or TREB tab for
more than two seconds. A beep
sounds and the level adjusts to the
middle position. To quickly adjust all tone and
speaker controls to the middle
position, press the
fknob for more
than two seconds until a beep
sounds.
EQ (Equalization): Press this
button to choose bass and treble
equalization settings designed for
different types of music. Selecting
MANUAL, or changing bass or
treble, returns the EQ to the manual
bass and treble settings.
Unique EQ settings can be saved
for each source.
If the radio has a Bose
®audio
system, the EQ settings are either
MANUAL or TALK.

Black plate (8,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
7-8 Infotainment System
Adjusting the Speakers
(Balance/Fade) (AM-FM Radio
and AM-FM Radio with CD)
To adjust the balance or fade:
1. Press
`or press thefknob
until the speaker control label
displays.
2. To adjust the setting, do one of the following:
.Turn thefknob.
.Press either¨SEEK,
or
©SEEK.
.Press either\FWD,
or
sREV.
Adjusting the Speakers
(Balance/Fade) (All Except
AM-FM Radio and Radio
with CD)
BAL/FADE (Balance/Fade): To
adjust the balance or fade:
1. Press the
fknob until the
speaker control tabs display.
2. Highlight the desired speaker control tab by doing one of the
following:
.Press thefknob.
.Press the softkey under the
desired tab.
3. Adjust the setting by doing one of the following:
.Turn thefknob clockwise
or counterclockwise.
.Press the¨SEEK,
or
©SEEK.
.Press the\FWD,
or
sREV. To quickly adjust all speaker and
tone controls to the middle position,
press the
fknob for more than
two seconds.
If the Rear Seat Audio (RSA) is
turned on, the radio disables FADE
and mutes the rear speakers.
Radio Messages
Calibration Error: The audio
system has been calibrated
for the vehicle from the factory.
If Calibration Error displays, it
means that the radio has not been
configured properly for the vehicle
and it must be returned to your
dealer for service.
Locked or Loc: One of these
messages will display when the
THEFTLOCK
®system has locked
up the radio. Take the vehicle to
your dealer for service.
If any error occurs repeatedly or
if an error cannot be corrected,
contact your dealer.

Black plate (10,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
7-10 Infotainment System
Storing Radio Stations
Drivers are encouraged to store the
radio station while the vehicle is
parked; seeDefensive Driving on
page 9‑3. Tune to stored radio
stations using the presets, favorites
button, and steering wheel controls,
if the vehicle has this feature.
Radios that have a FAV button store
radio stations as favorites. Up to
36 stations can be programmed as
favorites using the six softkeys
below the radio station frequency
tabs and by using the FAV button.
Press the FAV button to go through
up to six pages of favorites, each
having six favorite stations available
per page. Each page of favorites
can contain any combination of AM,
FM, or XM, if equipped, stations.
Radios that do not have a FAV
button store radio stations as
presets. Up to 18 stations (6 FM1,
6 FM2, and 6 AM), can be
programmed on the six numbered
pushbuttons. Setting Preset Stations
To store presets:
1. Tune to a radio station.
2. Press and hold one of the
six numbered pushbuttons for
three seconds until a beep
sounds.
3. Repeat Steps 1 and 2 to store additional radio stations.
Storing a Radio Station as a
Favorite
To store a station as a favorite:
1. Tune to a radio station.
2. Press the FAV button to display the page where the station will
be stored.
3. Press and hold one of the six softkeys until a beep sounds.
4. Repeat Steps 1 through 3 to store additional radio stations. The number of favorites pages can
be set up using the MENU button.
To set up the number of favorites
pages:
1. Press the MENU button.
2. Press the softkey located below
the FAV 1-6 tab.
3. Select the number of favorites pages by pressing the softkey
located below the displayed
page numbers.
4. Press the FAV button, or let the menu time out, to return to the
original main radio screen
showing the radio station
frequency tabs and to begin the
process of programming
favorites.

Black plate (11,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Infotainment System 7-11
Satellite Radio
XM™Satellite Radio Service
XM is a satellite radio service based
in the 48 contiguous United States
and 10 Canadian provinces. XM
Satellite Radio has a wide variety of
programming and commercial-free
music, coast to coast, and in
digital-quality sound. A service
fee is required to receive the XM
service. If the service needs to be
reactivated, the radio will display
“No Subscription Please Renew
on channel XM1.” For more
information, contact XM at
www.xmradio.com or
1-800-929-2100 in the U.S.,
and www.xmradio.ca or
1-877-438-9677 in Canada.
4(Information) (XM Satellite Radio
Service): For vehicles with XM,
press
4to display additional text
information related to the current
XM channel. 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.
Finding a Channel
BAND:Press to switch between
AM, FM, or XM™, if equipped.
f(Tune): Turn to manually select
an XM channel.
©SEEK: Press to go to the
previous XM channel.
¨SEEK: Press to go to the next
XM channel.
sREV: Press to go to the
previous XM category.
\FWD: Press to go to the next
XM category.
FAV (Favorites): Press to select
different favorites pages for stored
radio stations.
CAT (Category): The CAT button is
used to find XM channels when the
radio is in the XM mode.
Finding a Category (CAT)
Station
To find XM channels in a category:
1. Press the CAT button to display the category tabs. Continue
pressing the CAT button until the
desired category name displays.
.Radios with CD and DVD
can also navigate the
category list by pressing the
\FWD or thesREV
buttons.
2. Press either of the two softkeys below the desired category tab
to immediately tune to the first
XM station in that category.
To go to the previous or next XM
station in the selected category,
do one of the following:
.Turn thefknob.
.Press the softkey below the
right or left arrows in the
category tab.
.Press©SEEK or¨SEEK.

Black plate (12,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
7-12 Infotainment System
3. To exit the category searchmode, press the FAV button or
BAND button to display the
favorites again.
Adding and Removing Categories
Categories cannot be added or
removed while the vehicle is moving
faster than 8 km/h (5 mph).
To add or remove a category:
1. Press the MENU button.
2. Press the softkey located below the XM CAT tab.
3. Turn the
fknob to display the
category to add or remove.
4. Press the softkey located under the Add or Remove tab.
To restore all removed
categories, press the softkey
under the Restore All tab.
5. Repeat the steps to remove more categories.
Storing XM Channels
Drivers are encouraged to store
XM channels while the vehicle is
parked; see Defensive Driving on
page 9‑3. Tune to stored radio
stations using the presets, favorites
button, and steering wheel controls,
if the vehicle has this feature.
Up to 36 stations can be
programmed as favorites using the
six softkeys below the radio station
frequency tabs and by using the
FAV button. Press the FAV button
to go through up to six pages of
favorites, each having six favorite
stations available per page. Each
page of favorites can contain any
combination of AM, FM, or XM,
if equipped, stations.
Storing an XM Channel as a
Favorite
To store a station as a favorite:
1. Tune to an XM channel.
2. Press the FAV button to display the page where the station will
be stored. 3. Press and hold one of the
six softkeys until a beep sounds.
4. Repeat Steps 1 through 3 to store additional radio stations.
The number of favorites pages can
be set up using the MENU button.
To set up the number of favorites
pages:
1. Press the MENU button.
2. Press the softkey located below the FAV 1-6 tab.
3. Select the number of favorites pages by pressing the softkey
located below the displayed
page numbers.
4. Press the FAV button, or let the menu time out, to return to the
original main radio screen
showing the radio station
frequency tabs and to begin
the process of programming
favorites.

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.

Black plate (31,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Infotainment System 7-31
qGroupr:Press to cycle
through musical groupings on the
DVD-A disc.
Nav (Navigate): Press to display
directional arrows for navigating
through the menus.
e(Audio Stream): Press to cycle
through audio stream formats
located on the DVD-A disc. The
video screen shows the audio
stream changing.
The rear seat passenger can
navigate the DVD-V and DVD-A
menus and controls through the
remote control. See “Remote
Control” underRear Seat
Entertainment (RSE) System on
page 7‑37 for more information.
The video screen automatically
turns on when the DVD-V is
inserted into the DVD slot, and does
not automatically power on when
the DVD-A is inserted into the DVD
slot. It must be manually turned on
by the rear seat occupant through
the remote control power button.
Stopping and Resuming
Playback
To stop playing a DVD without
turning off the system, press
the
cbutton on the remote control,
or press the softkey located under
the
cor ther/jtabs displayed
on the radio. If the radio is sourced
to something other than DVD-V,
press the DVD/CD AUX button to
make DVD-V the active source.
To resume DVD playback, press
the
r/jbutton on the remote
control, or press the softkey located
under the
r/jtab on the radio.
The DVD should resume play from
where it last stopped if the disc has
not been ejected and the stop
button has not been pressed twice
on the remote control. If the disc
has been ejected or the stop button
has been pressed twice on the
remote control, the disc resumes
playing at the beginning of the disc.
CD/DVD Player Messages
Disc Format Error: This message
displays if the disc is inserted with
the disc label wrong side up, or if
the disc is damaged.
Disc Region Error: This message
displays if the disc is not from a
correct region.
No Disc Inserted: This message
displays if no disc is present when
the
Zor DVD/CD AUX button is
pressed on the radio.
Optical Error: This message
displays if the disc was inserted
upside down.
Disk Read Error: This message
displays if a disc was inserted with
an invalid or unknown format.