2011 GMC SIERRA 1500 ABS

Black plate (28,1)GMC Sierra Owner Manual - 2011
5-28 Instruments and Controls
This light can also come on due to
low brake fluid. SeeBrake Fluid on
page 10‑32 for more information.
MetricEnglish
This light comes on briefly when the
ignition key is turned to ON/RUN.
If it does not come on then, have it
fixed so it is ready to warn if there is
a problem.
{WARNING
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system (Continued)
WARNING (Continued)
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
If the light comes on while driving,
pull off the road and stop carefully.
The pedal might be harder to push
or might go closer to the floor. It can
take longer to stop. If the light is
still on, have the vehicle towed for
service. See Towing the Vehicle on
page 10‑103.
If the vehicle is a hybrid, see the
hybrid supplement for more
information.
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.

Black plate (6,1)GMC Sierra Owner Manual - 2011
7-6 Infotainment System
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 (7,1)GMC Sierra Owner Manual - 2011
Infotainment System 7-7
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.

Black plate (9,1)GMC Sierra Owner Manual - 2011
Infotainment System 7-9
¨SEEK:Press to seek the next
radio station. Press and hold for a
few seconds until a beep sounds to
scan for radio stations in ascending
order; press the
©SEEK button
again to stop scanning radio
stations. The radio only seeks and
scans stations with a strong signal
that are in the selected band.
For the AM-FM Radio, press and
hold the
¨SEEK for four seconds
until a double beep sounds to scan
the preset stations. The station
frequency flashes while the radio
is in the scan mode.
sREV: Press to manually tune to
a radio station in descending order.
\FWD: Press to manually tune to
a radio station in ascending order.
FAV (Favorites): Press to select
different favorites pages for stored
radio stations.
Storing Radio Stations
Drivers are encouraged to store
the radio station while the vehicle
is parked; see Defensive Driving on
page 9‑2. 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.

Black plate (10,1)GMC Sierra Owner Manual - 2011
7-10 Infotainment System
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 belowthe 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.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.

Black plate (11,1)GMC Sierra Owner Manual - 2011
Infotainment System 7-11
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.
3. To exit the category search mode, 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.

Black plate (12,1)GMC Sierra Owner Manual - 2011
7-12 Infotainment System
Storing XM Channels
Drivers are encouraged to store
XM channels while the vehicle is
parked; seeDefensive Driving on
page 9‑2. 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.
XM Radio Messages
XL (Explicit Language
Channels): These channels,
or any others, can be blocked at
a customer's request, by calling
1-800-929-2100 in the U.S. and
1-877-438-9677 in Canada.
XM Updating: The encryption
code in the receiver is being
updated, and no action is required.
This process should take no longer
than 30 seconds.
No XM Signal: The system is
functioning correctly, but the vehicle
is in a location that is blocking the
XM signal. When the vehicle is
moved into an open area, the
signal should return.
Loading XM: The audio system is
acquiring and processing audio and
text data. No action is needed. This
message should disappear shortly.
Channel Off Air: This channel is
not currently in service. Tune in to
another channel.

Black plate (20,1)GMC Sierra Owner Manual - 2011
7-20 Infotainment System
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
Sc
andc Ttabs, thefknob,
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.
¨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.