2011 GMC SIERRA light

Black plate (8,1)GMC Sierra Owner Manual - 2011
6-8 Lighting
Turn the knob clockwise or
counterclockwise to brighten
or dim the instrument panel lights.
Turning the knob to the farthest
clockwise position turns on the
dome lamps.
Cargo Lamp
The cargo lamps come on by
turning the instrument panel
brightness control knob to the
farthest clockwise position.
This knob is located on the
instrument panel and also
turns on the dome lamps.
The cargo lamps can be used if
more light is needed in the cargo
area of the vehicle or in the top-box
storage units.
Dome Lamps
The dome lamps are located in the
overhead console.
They come on when any door is
opened and turn off after all the
doors are closed.
Turn the instrument panel
brightness knob located below
the dome lamp override button,
clockwise to the farthest position to
manually turn on the dome lamps.
The dome lamps remain on until the
knob is turned counterclockwise.
Dome Lamp Override
The dome lamp override button is
located next to the exterior lamps
control.
k(Dome Off):Press the button
in and the dome lamps remain
off when a door is opened. Press
the button again to return it to the
extended position so that the dome
lamps come on when a door is
opened.

Black plate (9,1)GMC Sierra Owner Manual - 2011
Lighting 6-9
Reading Lamps
For vehicles with reading lamps,
they are located on the overhead
console.
To turn on the reading lamps, press
the button located next to each
lamp. To turn them off, press the
button again.
The vehicle may also have reading
lamps in other locations. To turn the
lamps on or off, press the button
located next to the lamp.
If the vehicle has a DVD Rear Seat
Entertainment (RSE) system, press
the lamp lenses to turn the lamps on
or off.
The lamps are fixed and cannot be
adjusted.
Lighting Features
Entry Lighting
The vehicle has an illuminated entry
feature.
When the doors are opened, the
dome lamps will come on if the
dome override button is in the
extended position. If the dome
override button is pressed in,
the lamps will not come on.
Exit Lighting
The interior lamps come on when
the key is removed from the ignition.
They turn off automatically in
20 seconds. The lights do not come
on if the dome override button is
pressed in.
Battery Load
Management
The vehicle has Electric Power
Management (EPM) that estimates
the battery's temperature and state
of charge. It then adjusts the voltage
for best performance and extended
life of the battery.
When the battery's state of charge
is low, the voltage is raised slightly
to quickly bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gauge or a voltage
display on the Driver Information
Center (DIC), you may see the
voltage move up or down. This is
normal. If there is a problem, an
alert will be displayed.

Black plate (10,1)GMC Sierra Owner Manual - 2011
6-10 Lighting
The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning
fast enough at idle to produce all
the power that is needed for very
high electrical loads.
A high electrical load occurs when
several of the following are on,
such as: headlamps, high beams,
fog lamps, rear window defogger,
climate control fan at high speed,
heated seats, engine cooling fans,
trailer loads, and loads plugged into
accessory power outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed
to generate more power, whenever
needed. It can temporarily reduce
the power demands of some
accessories.Normally, these actions occur
in steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a Driver Information
Center (DIC) message might be
displayed, such as BATTERY
SAVER ACTIVE, BATTERY
VOLTAGE LOW, or LOW BATTERY.
If one of these messages displays,
it is recommended that the driver
reduce the electrical loads as much
as possible. See
Driver Information
Center (DIC) on page 5‑33.
Battery Power Protection
This feature shuts off the dome and
reading lamps, if they are left on
for more than 10 minutes after the
ignition is turned off. The cargo
lamp shuts off after 20 minutes.
This prevents the battery from
running down.

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 (15,1)GMC Sierra Owner Manual - 2011
Infotainment System 7-15
Fixed Mast Antenna
The fixed mast antenna can
withstand most car washes without
being damaged as long as it is
securely attached to the base.
If the mast becomes slightly bent,
straighten it out by hand. If the
mast is badly bent, replace it.
Occasionally check to make sure
the antenna is tightened to its base.
If tightening is required, tighten
by hand until fully seated plus
one quarter turn.
Satellite Radio Antenna
The XM Satellite Radio antenna
is located on the roof of the
vehicle. Keep the antenna clear
of obstructions for clear radio
reception.
If the vehicle has a sunroof, the
performance of the XM system
(if equipped) may be affected
if the sunroof is open.
Audio Players
CD Player
Care of the CD Player
Do not add any label to a CD.
It could get caught in the CD.
If a CD is recorded on a personal
computer and a description label is
needed, try labeling the top of the
recorded CD with a marking pen.
The use of CD lens cleaners
is not advised, due to the risk of
contaminating the lens of the CD
optics with lubricants internal to
the CD player mechanism.Notice:
If a label is added to
a CD, or 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 Player
Messages” later in this section.

Black plate (16,1)GMC Sierra Owner Manual - 2011
7-16 Infotainment System
Care of CDs
If playing a CD-R, 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 player scans the
bottom surface of the disc. If the
surface of a CD is damaged, such
as cracked, broken, or scratched,
the CD does not play properly or not
at all. Do not touch the bottom side
of a CD while handling it; this could
damage the surface. Pick up CDs
by grasping the outer edges or the
edge of the hole and the outer edge.
If the surface of a CD 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.
Inserting a CD
(Single CD Player)
Insert a CD partway into the slot,
label side up. The player pulls it in
and the CD should begin playing.
Inserting a CD(s)
(Six-Disc CD Player)
LOAD^:Press to load CDs into
the CD player. This CD player holds
up to six CDs.
To insert one CD:
1. Press and release the LOAD button.
2. Wait for the message to insert the disc.
3. Load a CD. Insert the CD partway into the slot, label side
up. The player pulls the CD in. To insert multiple CDs:
1. Press and hold the LOAD button
for two seconds. A beep sounds
and Load All Discs displays.
2. Wait for the message on when to insert the discs. The CD player
takes up to six CDs.
3. Press the LOAD button again to cancel loading more CDs.
Ejecting a CD
(Single CD Player)
ZEJECT: Press and release to
eject the disc. Remove the CD
when Remove Disc displays. If the
disc is not removed, after several
seconds the disc is automatically
pulled back into the player.

Black plate (23,1)GMC Sierra Owner Manual - 2011
Infotainment System 7-23
Notice:If a label is added to
a CD, or 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.