Page 352 of 602
Sound Menu
e (Sound): Press this key or press the CONFIG key
to access the Sound menu to adjust the treble, midrange,
bass, fade, balance, and Digital Signal Processing (DSP).
The system automatically stores audio adjustment
settings as changes are made for each audio source
including AM, FM, XM (if equipped), CD, and AUX. Setting the Tone TREBLE: Touch the plus (+) or minus ( − ) sign to
increase or decrease the treble. If a station is weak
or has static, decrease the treble.
MID (Midrange): Touch the plus (+) or minus ( − ) sign
to increase or decrease the midrange.
BASS: Touch the plus (+) or minus ( − ) sign to increase
or decrease the bass.
Adjusting the Speakers L/R (Left/Right) (Balance): To adjust the balance
between the left and the right speakers, touch and
hold the L or R screen buttons.
Front/Rear (Fade): To adjust the fade between the
front and the rear speakers, touch and hold the Front
or Rear screen buttons.
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Do not add any label to a CD or DVD, it could get
caught in the player. If a CD or DVD is recorded on a
personal computer and a description label is needed,
try labeling the top of the recorded CD or DVD with
a soft marker.
Auxiliary Devices The vehicle may have a rear entertainment system
(RSE) with a second and third row screen. The RSE has
audio adapters to allow you to connect auxiliary devices.
The audio can be heard through the speakers or through
the wireless or wired headphones. See “Audio/Video
Jacks” under, Rear Seat Entertainment (RSE) System
(Overhead) on page 3-87 or Rear Seat Entertainment
(RSE) System (Headrest DVD) on page 3-97 for more
information.
Drivers are encouraged to set up any auxiliary device
while the vehicle is in P (Park). See Defensive
Driving on page 5-2 for more information on driver
distraction. To switch the RSE system to use an auxiliary device:
1. Connect the auxiliary device to the RSE system, for
the second or third row.
2. Press the AUDIO key then press the AUDIO key
repeatedly until AUX (auxiliary) is selected or
touch the AUX screen button. An auxiliary device
must be connected for the AUX screen button
to appear as an option to select.
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3. For the second row display select the Rear AUX
screen button next to Rear Display 1 and for the
third row display select the Rear AUX screen
button next to Rear Display 2. Each screen
works independently of the other. The second
row screen can watch a DVD while the third row
screen can use the auxiliary device.
The rear seat passengers can also use the remote
control to change the functions of the RSE. See Rear
Seat Entertainment (RSE) System (Overhead) on
page 3-87 or Rear Seat Entertainment (RSE) System
(Headrest DVD) on page 3-97 for more information.
Voice Recognition The navigation system’s voice recognition allows for
hands-free operation of the navigation system, audio
system, and OnStar ®
features. The DVD map disc must
be installed in the navigation system for voice recognition
to work. See “Installing the DVD Map Disc” under Maps
on page 4-15 for more information. Voice recognition can be used when the ignition is on
or when Retained Accessory Power (RAP) is active.
See “Retained Accessory Power (RAP)” in the Index
of your vehicle’s owner manual for more information.
To use voice recognition, do the following:
1. Push and hold the
SRCE button on the
steering wheel until you
hear a beep. The audio
system mutes.
2. Clearly state one of the commands listed on the
following pages.
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CD Commands The following are CD, MP3, and DVD commands that
can be accessed by clearly stating the commands
exactly as they are written.
CD, DVD, Disc: Use this command to select a CD,
DVD, or disc that is currently loaded.
CD, DVD, Disc, [select] track (one, two, three, etc.):
Instructs the system to select a speci c track number.
CD, DVD, Disc select next folder: Use this command
to select the next folder on the MP3 or audio DVD.
CD, DVD, Disc select previous folder: Use this
command to select the previous folder on the MP3
or audio DVD.
CD help, DVD help, Disc help: Instructs the system to
assist with CD and DVD commands. Auxiliary Commands The following auxiliary commands can be accessed
by clearly stating the commands exactly as they
are written. The commands are available when the
auxiliary source is available.
Aux, Auxiliary: Use this command to select the
auxiliary device, when a device is connected.
Voice Help Voice help: Provides a description of help commands
that can be used.
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Page 433 of 602

Electric Brake Control Wiring
Provisions These wiring provisions are included with the vehicle
as part of the heavy-duty trailer wiring package.
These provisions are for an electric brake controller.
The red/black stripe power feed will not be connected
to the battery until the ring terminal is unstowed and
connected to the underhood electrical center. The
instrument panel contains blunt cut wires near the data
link connector for the trailer brake controller. The harness
contains the following wires:
Dark Blue: Auxiliary
Red/Black: Battery
Light Blue/White: Brake Switch
White: Ground
The trailer brake controller should be installed by your
dealer/retailer or a quali ed service center. Trailer Recommendations Subtract the hitch loads from the Cargo Weight Rating
(CWR). CWR is the maximum weight of the load
the vehicle can carry. It does not include the weight of
the people inside, but you can gure about 150 lbs.
(68 kg) for each passenger. The total cargo load must
not be more than the vehicles CWR.
Weigh the vehicle with the trailer attached, so the
GVWR or GAWR are not exceeded. If using a
weight-distributing hitch, weigh the vehicle without
the spring bars in place.
The best performance is obtained by correctly spreading
out the weight of the load and choosing the correct
hitch and trailer brakes.
For more information see Towing a Trailer on page 5-44 .
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Fuses Usage
24 Fuel Injectors, Ignition Coils
(Left Side)
25 Trailer Park Lamps
26 Driver Side Park Lamps
27 Passenger Side Park Lamps
28 Fog Lamps
29 Horn
30 Passenger Side High-Beam
Headlamp
31 Daytime Running Lamps (DRL)
32 Driver Side High-Beam Headlamp
33 Daytime Running Lamps 2
34 Sunroof
35 Key Ignition System, Theft Deterrent
System
36 Windshield Wiper
37 SEO B2 Up tter Usage (Battery)
38 Electric Adjustable Pedals
39 Climate Controls (Battery)
40 Airbag System (Ignition)
41 Ampli er
42 Audio System
43 Miscellaneous (Ignition), Cruise
Control Fuses Usage
44 Liftgate Release
45 Airbag System (Battery)
46 Instrument Panel Cluster
47 Not Used
48 Auxiliary Climate Control (Ignition)
49 Center High-Mounted Stoplamp
(CHMSL)
50 Rear Defogger
51 Heated Mirrors
52 SEO B1 Up tter Usage (Battery)
53 Cigarette Lighter, Auxiliary Power
Outlet
54 Automatic Level Control Compressor
Relay
55 Climate Controls (Ignition)
56 Engine Control Module, Secondary
Fuel Pump (Ignition)
J-Case Fuses Usage
57 Cooling Fan 1
58 Automatic Level Control Compressor
59 Heavy Duty Antilock Braking System
60 Cooling Fan 2
61 Antilock Brake System 1
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