2008 GMC YUKON DENALI AUX

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 loads are on: 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 or Service Battery Charging System. If this
message is displayed, it is recommended that the driver
reduce the electrical loads as much as possible. See
DIC Warnings and Messages on page 3-56.Battery Run-Down Protection
This feature shuts off the dome, and reading lamps
if they are left on for more than 10 minutes when
the ignition is off. This will keep the battery from
running down.
Accessory Power Outlet(s)
Accessory power outlets can be used to connect
auxiliary electrical equipment, such as a cellular
telephone or CB radio.
There are two under the climate controls, one inside the
center oor console, one on the rear of the center
oor console and one accessory power outlet in the rear
cargo area on the passenger side.
To use an accessory power outlet, remove the protective
cap. When not in use, always cover the accessory
power outlet with the protective cap.
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Outlet Adjustment
Use the air outlets located in the center and on the side
of the instrument panel to direct the airow.
Operation Tips

Clear away any ice, snow, or leaves from air inlets
at the base of the windshield that could block the
ow of air into your vehicle.
Keep the path under the front seats clear of objects
to help circulate the air inside of the vehicle more
effectively.
Use of non-GM approved hood deectors can
adversely affect the performance of the system.
Check with your dealer/retailer before adding
equipment to the outside of your vehicle.
Rear Air Conditioning and Heating
System and Electronic Climate
Controls
For vehicles with the rear heat and air conditioning
controls, they are integrated with the rear seat audio
controls located in the center console. The system can
be controlled from the front controls as well as the
rear controls.
To turn the system on, press the AUX button on the
front climate control system, an indicator will be
lit. Pressing the AUX button the rst time will turn the
rear system on in a mimic mode. In this mode, the
airow in the rear will be approximately the same
direction, temperature, and fan speed as the front.
Pressing the AUX button again turns the rear system
and the indicator off.
If the rear controls are adjusted, the system enters a
rear independent mode. Airow in the rear will then be
directed according to the settings of rear controls.
The rear system can be turned off by pressing the AUX
button on the front climate control system and the
indicator will turn off.
If the indicator in the front AUX button is off, the rear
system is off.
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sREV (Reverse):Press and hold to reverse
playback quickly within a track. You will hear sound at a
reduced volume. Release to resume playing the
track. The elapsed time of the track displays.
\FWD (Fast Forward):Press and hold to advance
playback quickly within a track. You will hear sound
at a reduced volume. Release to resume playing
the track. The elapsed time of the track displays.
RDM (Random):With the random setting, the tracks
can be listened to in random, rather than sequential
order, on one CD or all CDs in a six-disc CD player.
To use random, do one of the following:
Press the CD/AUX button, or press and hold the
^button. A beep sounds and Load All Discs
displays. Insert one or more discs partway into the
slot of the CD player.
To play tracks from all CDs loaded in a six-disc CD
player in random order, press the pushbutton
positioned under the RDM label until Randomize All
Discs displays. Press the same pushbutton again
to turn off random play.To play the tracks from a CD loaded in the radio
with CD and DVD, press the DVD/CD AUX
button when not sourced to the CD, or insert a disc
partway into the slot. A RDM label displays.
To play tracks from a single CD in random order,
press the pushbutton positioned under the RDM
label until Random Current Disc displays. Press the
pushbutton again to turn off random play.
BAND:Press to listen to the radio when a CD is
playing. The CD remains inside the radio for future
listening.
For the radio with CD and DVD, press to listen to the
radio when a CD or DVD is playing. The CD or
DVD remains inside the radio for future listening or for
viewing entertainment.
CD/AUX (CD/Auxiliary):Press this button to play a CD
when listening to the radio. The CD icon and a
message showing the disc and/or track number displays
when a CD is in the player. Press this button 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 Input Device
Found” displays.
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DVD/CD AUX (Auxiliary):Press to cycle through DVD,
CD, or Auxiliary when listening to the radio. The
DVD/CD text label and a message showing the track or
chapter number displays 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 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(s)” later in this section, or
“Audio/Video (A/V) Jacks” under,Rear Seat
Entertainment (RSE) System on page 3-105for more
information.
If a disc is inserted into top DVD slot, the rear seat
operator can turn on the video screen and use
the remote control to navigate the CD (tracks only)
through the remote control.Radios with CD and DVD Audio Output
Only one audio source can be heard through the
speakers at one time. An audio source is dened as
DVD slot, CD slot, XM™, FM/AM, Front Auxiliary Jack,
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) by pressing the BAND button or the
DVD/CD AUX button to select CD slot, DVD slot, front
or rear auxiliary input (if available).
If a playback device is plugged into the radio’s front
auxiliary input jack 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(s)” later in this section, or
“Audio/Video (A/V) Jacks” underRear Seat
Entertainment (RSE) System on page 3-105for more
information.
In some vehicles, depending on audio options, the rear
speakers can be muted when the RSA power is
turned on. SeeRear Seat Audio (RSA) on page 3-115
for more information.
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Using the DVD Player
The DVD player is controlled by the buttons on the
remote control, or by the RSA system, or by the buttons
on the radio faceplate. See “Remote Control”, under
Rear Seat Entertainment (RSE) System on page 3-105
andRear Seat Audio (RSA) on page 3-115for more
information.
The DVD player is only compatible with DVDs of the
appropriate region code that is printed on the jacket of
most DVDs.
The DVD slot of the radio is compatible with most audio
CDs, CD-R, CD-RW, DVD-Video, DVD-Audio,
DVD-R/RW, DVD+R/RW media along with MP3 and
WMA formats.
If an error message displays on the video screen or the
radio, see “DVD Display Error Messages” under,
Rear Seat Entertainment (RSE) System on page 3-105
and “DVD Radio Error Messages” in this section for
more information.
Playing a DVD
DVD/CD AUX (Auxiliary):Press to cycle through DVD,
CD, or Auxiliary when listening to the radio. The
DVD/CD text label and a message showing track or
chapter number displays 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 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(s)” later in this section, or
“Audio/Video (A/V) Jacks” under,Rear Seat
Entertainment (RSE) System on page 3-105for more
information.
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Stopping and Resuming Playback
To stop playing a DVD without turning off the system,
press the
cbutton on the remote control, or press the
pushbutton located under the stop or the play/pause
symbol tags displayed on the radio. If the radio head 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 pushbutton located
under the play/pause symbol tag displayed 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.
Ejecting a Disc
Press theZbutton on the radio to eject the disc. If a
disc is ejected from the radio, but not removed, the
radio reloads the disc after a short period of time. The
disc is stored in the radio. The radio does not resume
play of the disc automatically. If the RSA system
is sourced to the DVD, the movie when reloaded into
the DVD player begins to play again.In case loading and reading of a DVD or CD cannot be
completed (unknown format, etc.), and the disc fails
to eject, press and hold the DVD
Zbutton more than
ve seconds to force the disc to eject.
DVD Radio Error Messages
Player Error:This message displays when there are
disc load or eject problems.
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.
Using the Auxiliary Input Jack
The radio system has an auxiliary input jack located on
the lower right side of the faceplate. This is not an
audio output; do not plug the headphone set into the
front auxiliary input jack. An external audio device such
as an iPod, laptop computer, MP3 player, CD player,
etc. can be connected to the auxiliary input jack for use
as another source for audio listening.
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Drivers are encouraged to set up any auxiliary device
while the vehicle is in PARK (P). SeeDefensive Driving
on page 4-2for more information on driver distraction.
To use a portable audio player, connect a 3.5 mm
(1/8 inch) cable to the radio’s front auxiliary input jack.
When a device is connected, press the radio CD/AUX
button to begin playing audio from the device over
the vehicle speakers.
For optimal sound quality, increase the portable audio
device’s volume to the loudest level.
It is always best to power your portable audio device
through its own battery while playing.
O(Power/Volume):Turn clockwise or
counterclockwise to increase or decrease the volume of
the portable player. Additional volume adjustments
might have to be made from the portable device if the
volume is not loud or soft enough.
BAND:Press to listen to the radio when a portable
audio device is playing. The portable audio device
continues playing, so you might want to stop it or turn
it off.CD/AUX (CD/Auxiliary):Press to play a CD when a
portable audio device is playing. Press again and
the system begins playing audio from the connected
portable audio player. If a portable audio player is
not connected, “No Input Device Found” displays.
DVD/CD AUX (CD/Auxiliary):Press to cycle through
DVD, CD, or Auxiliary when listening to the radio.
The DVD/CD text label and a message showing track or
chapter number displays 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 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(s)” later in this section, or
“Audio/Video (A/V) Jacks” under,Rear Seat
Entertainment (RSE) System on page 3-105for more
information.
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To change from playback by artist to playback by album,
press the pushbutton located below the Sort By label.
From the sort screen, push one of the buttons below the
album button. Press the pushbutton below the back label
to return to the main music navigator screen. Now the
album name displays on the second line between the
arrows and songs from the current album begins to play.
Once all songs from that album are played, the player
moves to the next album in alphabetic order on the CD-R
or CD-RW and begin playing MP3 les from that album.
To exit music navigator mode, press the pushbutton
below the Back label to return to normal MP3 playback.
BAND:Press this button to listen to the radio when a
CD is playing. The CD remains safely inside the radio for
future listening.
CD/AUX (CD/Auxiliary):Press this button to play a CD
when listening to the radio. The CD icon and a
message showing disc and/or track number displays
when a CD is in the player. Press this button 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 Input Device
Found” displays.Using an MP3 (Radio with CD and
DVD Player)
MP3/WMA CD-R or CD-RW Disc
Compressed Audio or Mixed Mode Discs
The radio also plays discs that contain both
uncompressed CD audio (.CDA les) and MP3/WMA les
depending on which slot the disc is loaded into. By default
the radio reads only the uncompressed audio (.CDA) and
ignores the MP3/WMA les on the DVD deck. On the CD
deck, press the CAT (category) button to toggle between
compressed and uncompressed audio format, the default
being the uncompressed format (.CDA).
MP3/WMA Format
If you burn your own MP3/WMA disc on a personal
computer:
Make sure the MP3/WMA les are recorded on a
CD-R or CD-RW disc.
Do not mix standard audio and MP3/WMA les on
one disc.
The CD player (lower slot) is able to read and play
a maximum combination of 512 les and folders.
The DVD player (upper slot) is able to read
255 folders, 15 playlists and 40 sessions.
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