Radio Reception
Frequency interference and static can occur during
normal radio reception if items such as cell phone
chargers, vehicle convenience accessories, and external
electronic devices are plugged into the accessory
power outlet. If there is interference or static, unplug the
item from the accessory power outlet.
AM
The range for most AM stations is greater than for FM,
especially at night. The longer range can cause
station frequencies to interfere with each other. For
better radio reception, most AM radio stations boost the
power levels during the day, and then reduce these
levels during the night. Static can also occur when things
like storms and power lines interfere with radio
reception. When this happens, try reducing the treble on
the radio.
FM Stereo
FM signals only reach about 10 to 40 miles
(16 to 65 km). Although the radio has a built-in electronic
circuit that automatically works to reduce interference,
some static can occur, especially around tall buildings or
hills, causing the sound to fade in and out.
XM™ Satellite Radio Service
XM Satellite Radio Service gives digital radio reception
from coast-to-coast in the 48 contiguous United
States, and in Canada. Just as with FM, tall buildings or
hills can interfere with satellite radio signals, causing
the sound to fade in and out. In addition, traveling
or standing under heavy foliage, bridges, garages, or
tunnels may cause loss of the XM signal for a period
of time.
Cellular Phone Usage
Cellular phone usage may cause interference with the
vehicle’s radio. This interference may occur when
making or receiving phone calls, charging the phone’s
battery, or simply having the phone on. This interference
causes an increased level of static while listening to
the radio. If static is received while listening to the radio,
unplug the cellular phone and turn it off.
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Hard Keys
The following hard keys are located on the navigation
system:
O/n(Power/Volume):Press to turn the system on
and off. Turn to increase or decrease the volume to
the audio system.
Press and hold for more than two seconds to turn off
the navigation system, the Rear Seat Entertainment
(RSE), and Rear Seat Audio (RSA). If the vehicle has
not been tuned off, the RSE and the RSA can be turned
back on by pressing this knob and continues play of
the last active source.
w(Tune):Turn to go to the next or previous radio
station or disc track or chapter. SeeNavigation Audio
System on page 4-57,CD Player on page 4-64,orDVD
Player on page 4-71for more information.
Z(DVD Map Disc Eject):Press to eject the DVD
map disc. This button is located next to the upper disc
slot. SeeMaps on page 4-14for more information.
M(Load):Press to load CDs or audio/video DVDs.
SeeCD Player on page 4-64orDVD Player on
page 4-71for more information.
Z(CD/DVD Eject):Press to eject CDs or audio/video
DVDs. This button is located under the load button.
SeeCD Player on page 4-64orDVD Player on
page 4-71for more information.
m(Tilt):Press up or down to tilt the screen.
AUDIO:Press access the full Audio screen to change
AM, FM, XM™ Satellite Radio Service (if equipped),
CD/DVD, and auxiliary input. See “Audio” under
Navigation Audio System on page 4-57for more
information.
FAV (Favorite):Press to access the preset stations.
See “Storing Radio Station Presets” underNavigation
Audio System on page 4-57for more information.
5(Phone):Press to access calling through OnStar®.
SeeOnStar®System on page 2-56andBluetooth®
on page 3-66for more information.
e(Sound):Press to access the Sound screen to
adjust bass, midrange, treble, and Digital Signal
Processing (DSP). See “Sound Menu” underNavigation
Audio System on page 4-57for more information.
DEST (Destination):Press to access the Destination
Entry screen to plan a destination. SeeDestination
on page 4-23for more information.
4-12
Current position calibration is set incorrectly.
Vehicle is traveling at high speed.
Vehicle changes directions more than once, or
when the vehicle is turning on a turn table in a
parking lot.
Vehicle is entering and/or exiting a parking lot
or a garage.
GPS signal is not received.
Roof carrier is installed on the vehicle.
Vehicle is being driven with tire chains.
Tires are replaced.
Tire pressure for the tires is incorrect.
Tires are worn.
First time the map DVD is inserted.
Battery is disconnected for several days.
Vehicle is driving in heavy traffic where driving is at
low speeds, and the vehicle is stopped and started
repeatedly.
See your dealer/retailer if other problems occur.
Problems with Route Guidance
Inappropriate route guidance may occur under one or
more of the following conditions:
You have not turned onto the road indicated.
Route guidance may not be available when using
automatic rerouting for the next right or left turn.
The route may not be changed when using
automatic rerouting.
There is no route guidance when turning at an
intersection.
Plural names of places may be announced
occasionally.
It may take a long time to operate automatic
rerouting during high-speed driving.
Automatic rerouting may display a route returning to
the set stopover if you are heading for a destination
without passing through a set stopover.
The route prohibits the entry of a vehicle due to a
regulation by time or season or any other regulation
which may be given.
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Navigation Audio System
Notice:Before adding any sound equipment to the
vehicle, such as an audio system, CD player, CB
radio, mobile telephone, or two-way radio, make
sure that it can be added by checking with your
dealer/retailer. Also, check federal rules covering
mobile radio and telephone units. If sound
equipment can be added, it is very important to do
it properly. Added sound equipment can interfere
with the operation of the vehicle’s engine, radio, or
other systems, and even damage them. The
vehicle’s systems can interfere with the operation of
sound equipment that has been added.
Notice:The chime signals related to safety belts,
parking brake, and other functions of the vehicle
operate through the navigation system. If that
equipment is replaced or additional equipment is
added to the vehicle, the chimes may not work.
Make sure that replacement or additional equipment
is compatible with the vehicle before installing it.
See “Accessories and Modi cations” in the Index of
the vehicle’s owner manual.
Playing the Radio
O
/n(Power/Volume):Press to turn the audio
system on and off. Turn to increase or to decrease
the volume.
Press and hold for more than two seconds to turn off
the navigation system, the Rear Seat Entertainment
(RSE) video screen, and Rear Seat Audio (RSA). If the
vehicle has not been turned off, press this knob to
turn RSE and RSA back on and to continue playback of
the last active source.
w(Tuning Knob):Turn to go to the next or
previous frequency or disc track or chapter. SeeCD
Player on page 4-64orDVD Player on page 4-71
for more information.
AUDIO:Press to display the audio screen. Press to
switch between AM, FM, or XM, if equipped, DISC, or
AUX (Auxiliary), or touch the screen button. SeeCD
Player on page 4-64,DVD Player on page 4-71,
andAuxiliary Devices on page 4-78for more
information.
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Radio Data System (RDS)
The audio system has a Radio Data System (RDS).
RDS features are available for use only on FM stations
that broadcast RDS information. With RDS, the radio
can do the following:
Receive announcements concerning local and
national emergencies
Display messages from radio stations
This system relies on receiving speci c information from
these stations and only works when the information is
available. In rare cases, a radio station may broadcast
incorrect information that causes the radio features
to work improperly. If this happens, contact the radio
station.
The RDS system is always on. When information is
broadcast from the FM station that is playing, the station
name or call letters displays on the audio screen.
XM™ Satellite Radio Service
XM™ is a satellite radio service that is 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. During your
trial or when you subscribe, you will get unlimited
access to XM Radio Online while not in the vehicle. A
service fee is required to receive the XM service.For more information, contact XM at xmradio.com or call
1-800-929-2100 in the U.S. and xmradio.ca or call
1-877-438-9677 in Canada.
When XM™ is active, the channel name and number,
song title, and artist displays on the screen.
XM™ Radio Messages
XL (Explicit Language Channels):XL on the radio
display, after the channel name, indicates content with
explicit language. These channels, or any others,
can be blocked at a customer’s request by calling
1-800-852-XMXM (9696).
XM Updating:The encryption code in the receiver is
being updated and no action is required.
No XM signal: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 processing audio
and text data received. No action is needed.
Channel Off Air:This channel is not currently in
service.
Channel Unauth:This channel is blocked or cannot be
received with your XM Subscription package.
Channel Unavail:This previously assigned channel is
no longer assigned.
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Because you will be on an unpaved surface, it is
especially important to avoid sudden acceleration,
sudden turns, or sudden braking.
Off-roading requires a different kind of alertness from
driving on paved roads and highways. There are no road
signs, posted speed limits, or signal lights. Use good
judgment about what is safe and what is not.
Driving on Hills
Off-road driving often takes you up, down, or across a
hill. Driving safely on hills requires good judgment
and an understanding of what the vehicle can and
cannot do. There are some hills that simply cannot be
driven, no matter how well built the vehicle.
{CAUTION:
Many hills are simply too steep for any vehicle. If
you drive up them, you will stall. If you drive down
them, you cannot control your speed. If you drive
across them, you will roll over. You could be
seriously injured or killed. If you have any doubt
about the steepness, do not drive the hill.
Approaching a Hill
When you approach a hill, decide if it is too steep to
climb, descend, or cross. Steepness can be hard
to judge. On a very small hill, for example, there may be
a smooth, constant incline with only a small change in
elevation where you can easily see all the way to
the top. On a large hill, the incline may get steeper as
you near the top, but you might not see this because the
crest of the hill is hidden by bushes, grass, or shrubs.
Consider this as you approach a hill:
Is there a constant incline, or does the hill get
sharply steeper in places?
Is there good traction on the hillside, or will the
surface cause tire slipping?
Is there a straight path up or down the hill so you
will not have to make turning maneuvers?
Are there obstructions on the hill that can block your
path, such as boulders, trees, logs, or ruts?
What is beyond the hill? Is there a cliff, an
embankment, a drop-off, a fence? Get out and
walk the hill if you do not know. It is the smart way
to nd out.
Is the hill simply too rough? Steep hills often have
ruts, gullies, troughs, and exposed rocks because
they are more susceptible to the effects of erosion.
5-17
Run the engine for short periods only as needed to
keep warm, but be careful.
To save fuel, run the engine for only short periods as
needed to warm the vehicle and then shut the engine
off and close the window most of the way to save heat.
Repeat this until help arrives but only when you feel
really uncomfortable from the cold. Moving about
to keep warm also helps.
If it takes some time for help to arrive, now and then
when you run the engine, push the accelerator
pedal slightly so the engine runs faster than the idle
speed. This keeps the battery charged to restart
the vehicle and to signal for help with the headlamps.
Do this as little as possible to save fuel.
If Your Vehicle is Stuck in Sand,
Mud, Ice, or Snow
Slowly and cautiously spin the wheels to free the
vehicle when stuck in sand, mud, ice, or snow. See
Rocking Your Vehicle to Get It Out on page 5-29.
If the vehicle has a traction system, it can often help to
free a stuck vehicle. Refer to the vehicle’s traction
system in the Index. If stuck too severely for the traction
system to free the vehicle, turn the traction system off
and use the rocking method.
{CAUTION:
If you let your vehicle’s tires spin at high speed,
they can explode, and you or others could be
injured. The vehicle can overheat, causing an
engine compartment re or other damage. Spin
the wheels as little as possible and avoid going
above 35 mph (55 km/h) as shown on the
speedometer.
For information about using tire chains on the vehicle,
seeTire Chains on page 6-75.
Rocking Your Vehicle to Get It Out
Turn the steering wheel left and right to clear the
area around the front wheels. Turn off any traction or
stability system. Shift back and forth between
R (Reverse) and a forward gear, spinning the wheels as
little as possible. To prevent transmission wear, wait
until the wheels stop spinning before shifting gears.
Release the accelerator pedal while shifting, and press
lightly on the accelerator pedal when the transmission
is in gear. Slowly spinning the wheels in the forward and
reverse directions causes a rocking motion that could
free the vehicle. If that does not get the vehicle out after
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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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