Digital Signal Processing (DSP)
The system has Digital Signal Processing (DSP). DSP
provides a choice of four different listening experiences.
DSP can be used while listening to the audio system.
Not all DSP modes are available for all source
types. The type of DSP selected is displayed on the
status line.
Select from the following DSP settings:
Normal:Adjusts the audio for normal mode. This
provides the best sound quality for all seating positions.
Surround (Centerpoint
®):Enables Bose Centerpoint
signal processing that produces a surround sound
listening experience from a CD or XM stereo digital
audio source. Centerpoint delivers ve independent
audio channels from conventional two channel stereo
recordings (not available for AM or FM).
Driver:Adjusts the audio to give the driver the best
possible sound quality.
Rear:Adjusts the audio to give the rear seat occupants
the best possible sound quality.
2 CH. (Channel):Enhances surround sound.
5.1 CH. (Channel):Gives a full affect of surround
sound listening. This button is only available when
playing DVD video and DVD audio discs that support
5.1 audio and the RSA is off.
Radio Menu
Press the CONFIG key to enter the con gure menu
screen, then press the CONFIG key repeatedly
until Radio is selected or touch the Radio screen button
to make changes for radio information displayed or to
limit features while driving, number of preset pages, XM
categories, and Bose
®AudioPilot®.
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This system is able to recognize commands in three
different languages. The system only recognizes
commands based on the language selected from the
Driver Information Center (DIC). SeeDIC Vehicle
Customization on page 3-56for more information.
Voice Recognition Commands
The following list shows all of the voice commands
available for the navigation system with a brief
description of each. The commands are listed with the
optional words in brackets. To use the voice commands,
refer to the instructions listed previously.
Voice Tag Commands
The following are voice tag commands that can be
accessed by clearly stating the commands exactly as
they are written. There are up to 40 voice tag entries for
destinations.
Navigation go to [destination], navigation
select:These commands instruct the system to select
a destination saved under the voice tag you have
stored. The system prompts for a destination name then
waits for you to state the name.
If not currently driving on a route, the system
automatically creates the voice tag destination as the
nal destination. If driving on a route, the system
automatically creates the voice tag destination as a
stopover. Up to three stopovers can be created.
Storing Voice Tags
From the address book entry information page, press
the Add Voice tag screen button. The system responds
“Name Please?” and you will have four seconds to
record a name. The system asks for con rmation of the
name before saving it as a voice tag.
Navigation Help
Navigation Help:This command instructs the system
to assist with navigation commands.
Display Commands
Use the following display commands to set the
display mode.
Display [set] day [mode]:Sets the display to
daytime mode.
Display [set] night [mode]:Sets the display to
night mode.
Display [set] auto [mode]:Sets the display to
automatic mode. The system changes between day and
night mode automatically.
System help:Instructs the system to assist with
display commands.
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It is recommended to leave the system on for normal
driving conditions, but it may be necessary to turn
the system off if the vehicle is stuck in sand, mud, ice or
snow, and you want to “rock” the vehicle to attempt to
free it. It may also be necessary to turn off the
system when driving in extreme off-road conditions
where high wheel spin is required. SeeIf Your Vehicle
is Stuck in Sand, Mud, Ice, or Snow on page 5-29
Traction Control Operation
The traction control system is part of the StabiliTrak
system. Traction control limits wheel spin by reducing
engine power to the wheels (engine speed
management) and by applying brakes to each individual
wheel (brake-traction control) as necessary.
The traction control system is enabled automatically
when the vehicle is started. It will activate and the
StabiliTrak light will ash if it senses that any of the
wheels are spinning or beginning to lose traction while
driving. If traction control is turned off, only the
brake-traction control portion of traction control will
work. The engine speed management will be disabled.
In this mode, engine power is not reduced automatically
and the driven wheels can spin more freely. This can
cause the brake-traction control to activate constantly.Notice:If the wheel(s) of one axle is allowed to
spin excessively while the StabiliTrak, ABS
and brake warning lights and any relevant DIC
messages are displayed, the transfer case could be
damaged. The repairs would not be covered by
the vehicle warranty. Reduce engine power and do
not spin the wheel(s) excessively while these
lights and messages are displayed.
The traction control system may activate on dry or
rough roads or under conditions such as heavy
acceleration while turning or abrupt upshifts/downshifts
of the transmission. When this happens, a reduction
in acceleration may be noticed, or a noise or vibration
may be heard. This is normal.
If cruise control is being used when the system
activates, the StabiliTrak light will ash and cruise
control will automatically disengage. Cruise control may
be reengaged when road conditions allow. See
Cruise Control on page 3-10
StabiliTrak may also turn off automatically if it
determines that a problem exists with the system. If the
problem does not clear itself after restarting the
vehicle, see your dealer/retailer for service.
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Level Control
Automatic Level Control
The automatic level control rear suspension is available
on light-duty vehicles and comes as a part of the
Autoride
®suspension, if equipped.
This type of level control is fully automatic and will
provide a better leveled riding position as well as better
handling under a variety of passenger and loading
conditions. An air compressor connected to the rear
shocks will raise or lower the rear of the vehicle
to maintain proper vehicle height. The system is
activated when the ignition key is turned to ON/RUN
and will automatically adjust vehicle height thereafter.
The system may exhaust (lower vehicle height) for up to
ten minutes after the ignition key has been turned off.
You may hear the air compressor operating when
the height is being adjusted.
If a weight-distributing hitch is being used, it is
recommended to allow the shocks to in ate, thereby
leveling the vehicle prior to adjusting the hitch.
Autoride®
With this feature, improved vehicle ride and handling is
provided under a variety of passenger and loading
conditions.
The system is fully automatic and uses a computer
controller to continuously monitor vehicle speed, wheel
to body position, lift/dive and steering position of the
vehicle. The controller then sends signals to each shock
absorber to independently adjust the damping level to
provide the optimum vehicle ride.
Autoride also interacts with the tow/haul mode that,
when activated, will provide additional control of
the shock absorbers. This additional control results in
better ride and handling characteristics when the vehicle
is loaded or towing a trailer. See “Tow/Haul Mode”
underTowing a Trailer on page 5-40for more
information.
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When pulling a trailer that, when loaded, will weigh
more than 5,000 lbs (2 270 kg) be sure to use a properly
mounted weight-distributing hitch and sway control of
the proper size. This equipment is very important
for proper vehicle loading and good handling when
driving. Always use sway control if the trailer will weigh
more than these limits. Ask a hitch dealer about
sway controls.
Safety Chains
Always attach chains between the vehicle and the
trailer. Cross the safety chains under the tongue of the
trailer to help prevent the tongue from contacting
the road if it becomes separated from the hitch.
Instructions about safety chains may be provided by the
hitch manufacturer or by the trailer manufacturer. If
the trailer being towed weighs up to the vehicle’s trailer
rating limit, safety chains may be attached to the
attaching point on the hitch platform. Always leave just
enough slack so the rig can turn. Never allow safety
chains to drag on the ground.
Tow/Haul Mode
Pressing this button at
the end of the shift lever
turns on and off the
tow/haul mode.
This indicator light on the
instrument panel cluster
comes on when the
tow/haul mode is on.
Tow/Haul is a feature that assists when pulling a heavy
trailer or a large or heavy load. SeeTow/Haul Mode
on page 2-39for more information.
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Trailer Wiring Harness
Heavy-Duty Trailer Wiring Package
The vehicle is equipped with the seven-wire trailer
towing harness. This harness with a seven-pin universal
heavy-duty trailer connector is attached to the rear
bumper beam. It is located next to the integrated
trailer hitch.The seven-wire harness contains the following trailer
circuits:
Yellow: Left Stop/Turn Signal
Dark Green: Right Stop/Turn Signal
Brown: Taillamps
White: Ground
Light Green: Back-up Lamps
Red w/ Black Stripe: Battery Feed*
Dark Blue: Trailer Brake*
*The fuses for these two circuits are installed in the
underhood electrical center, but the circuits are
not connected. They should be installed by your dealer
or a quali ed service center.
If charging a remote (non-vehicle) battery, press the
Tow/Haul mode button, if equipped, located at the end
of the shift lever. This will boost the vehicle system
voltage and properly charge the battery. If the trailer is
too light for Tow/Haul mode, or the vehicle is not
equipped with Tow/Haul, turn on the headlamps as a
second way to boost the vehicle system and charge the
battery.
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The TPMS sensor matching process is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the
engine off.
3. Press the Remote Keyless Entry (RKE) transmitter’s
lock and unlock buttons at the same time for
approximately ve seconds. The horn sounds twice
to signal the receiver is in relearn mode and
TIRE LEARNING ACTIVE message displays on the
DIC screen.
4. Start with the driver side front tire.
5. Remove the valve cap from the valve cap stem.
Activate the TPMS sensor by increasing or
decreasing the tire’s air pressure for ve seconds,
or until a horn chirp sounds. The horn chirp,
which may take up to 30 seconds to sound,
con rms that the sensor identi cation code has
been matched to this tire and wheel position.6. Proceed to the passenger side front tire, and repeat
the procedure in Step 5.
7. Proceed to the passenger side rear tire, and repeat
the procedure in Step 5.
8. Proceed to the driver side rear tire, and repeat the
procedure in Step 5. The horn sounds two times to
indicate the sensor identi cation code has been
matched to the driver side rear tire, and the TPMS
sensor matching process is no longer active.
The TIRE LEARNING ACTIVE message on the DIC
display screen goes off.
9. Turn the ignition switch to LOCK/OFF.
10. Set all four tires to the recommended air pressure
level as indicated on the Tire and Loading
Information label.
11. Put the valve caps back on the valve stems.
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Remove any valuables from your vehicle before it is
towed away. Make sure this includes your insurance
information and registration if you keep these
items in your vehicle.
Gather the important information you will need from
the other driver. Things like name, address, phone
number, driver’s license number, vehicle license
plate, vehicle make, model and model year, Vehicle
Identi cation Number (VIN), insurance company
and policy number, and a general description of the
damage to the other vehicle.
If possible, call your insurance company from the
scene of the crash. They will walk you through
the information they will need. If they ask for
a police report, phone or go to the police
department headquarters the next day and you can
get a copy of the report for a nominal fee. In
some states/provinces with “no fault” insurance
laws, a report may not be necessary. This is
especially true if there are no injuries and both
vehicles are driveable.
Choose a reputable collision repair facility for your
vehicle. Whether you select a GM dealer/retailer
or a private collision repair facility to x the damage,
make sure you are comfortable with them.
Remember, you will have to feel comfortable with
their work for a long time.
Once you have an estimate, read it carefully and
make sure you understand what work will be
performed on your vehicle. If you have a question,
ask for an explanation. Reputable shops welcome
this opportunity.
Managing the Vehicle Damage Repair
Process
In the event that your vehicle requires damage repairs,
GM recommends that you take an active role in its
repair. If you have a pre-determined repair facility of
choice, take your vehicle there, or have it towed there.
Specify to the facility that any required replacement
collision parts be original equipment parts, either new
Genuine GM parts or recycled original GM parts.
Remember, recycled parts will not be covered by your
GM vehicle warranty.
Insurance pays the bill for the repair, but you must live
with the repair. Depending on your policy limits, your
insurance company may initially value the repair using
aftermarket parts. Discuss this with your repair
professional, and insist on Genuine GM parts.
Remember if your vehicle is leased you may be
obligated to have the vehicle repaired with Genuine GM
parts, even if your insurance coverage does not pay
the full cost.
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