light HUMMER H3 2009 Repair Manual

Using the CD Player
The CD player can play smaller
3 inch (8 cm) single CDs with
an adapter ring.
A CD in the player it stays in the
player when the ignition is turned off.
When the ignition or radio is
turned on, the CD starts to play
where it stopped, if it was the last
selected audio source.
Loading a CD
To load a CD do one of the
following:
Single CD Radio:
To Insert a CD with the ignition
on, insert the CD partway into
the slot, label side up, until
the player pulls the CD in. The
CD begins playing automatically.
To insert a CD with the ignition
off, press
Z(Eject) or the
DISP knob rst.The CD symbol displays when a CD
is inserted, and the track number
displays when each new track starts
to play.
Six-Disc CD Radio:
LOAD:Press to load CDs into the
CD player.
To insert one CD:
1. Turn the ignition on.
2. Press and release the LOAD
button.
3. Wait for the indicator light
comes on.
4. Insert the CD partway into the
slot, label side up, until the
player pulls the CD in. The CD
begins playing automatically.To insert multiple CDs:
1. Turn the ignition on.
2. Press and hold the LOAD button
for two seconds. The radio
beeps once, the indicator light
ashes, and LOAD # is
displayed.
3. Load a CD once INSERT CD #
displays and the light stops
ashing and illuminates. Insert
the CD partway into the slot,
label side up, until the player
pulls the CD in.
4. Repeat step 3 to load the
remaining CDs.
To load more than one CD but less
than six, complete Steps 1
through 3. When nished loading
CDs, press the LOAD button
to cancel the loading function. The
last CD loaded begins playing
automatically.
Playing a CD
B(CD):Press to play a CD while
listening to the radio.
Instrument Panel 3-47

y(Random):All the tracks on
one CD or all the CDs can be played
in random order.
Press and releaseyto play
all the tracks on one CD in
random order. RANDOM ONE
displays. Press again to turn
off random play.
Press and holdyfor more than
two seconds to play the tracks
on all of the CDs that are loaded
in random order. A beep
sounds and RANDOM ALL
displays. Press again to turn off
random play.
Z(Eject):Press to eject CD(s).
Press and release
Zto eject
the CD that is currently playing.
To eject multiple CDs:
1. Press and hold
Zfor ve
seconds. A beep sounds and the
indicator light begins to ash
and EJECT ALL displays.2. Remove the CD when REMOVE
CD # displays and the light stops
ashing.
Once the CD is removed, the
indicator light begins ashing
again and another CD ejects.
To stop ejecting the CDs, press
LOAD or
Z.
The CD is automatically pulled back
into the player if the CD is not
removed after 25 seconds. Pushing
a CD back into the player, before
the 25 second time period is
complete causes the player to sense
an error and the CD player tries
to eject the CD several times before
stopping.
Pressing
Zrepeatedly after trying
to push a CD in manually causes
the CD players 25-second eject
timer to reset. Wait for the timer to
expire before pressing
Zagain.
R(Song List):The Song
List feature can save 20 track
selections.To save tracks:
1. If S-LIST is displayed, press
R
to turn it off.
2. Select the desired CD by
pressing the numbered
pushbutton and then use
uto
select the track to be saved.
3. Press and hold
Rfor
two seconds, two beeps
sound to conrm the track is
saved into memory.
4. Repeat Steps 2 and 3 for saving
other selections.
S-LIST FULL displays if more than
20 selections are tried to be
stored.
To play tracks:
1. Press
R. One beep sounds and
S-LIST displays. The recorded
tracks begin to play in the
order they were saved
2. Press
toruto go back or
forward within the saved
tracks.
Instrument Panel 3-49

To delete tracks:
1. Press
Rto turn song list on.
S-LIST displays.
2. Press either SEEK arrow to
select the desired track to
be deleted.
3. Press and hold
Rfor
two seconds. Two beeps
sound to conrm that the track
has been deleted.
After a track has been deleted, the
remaining tracks are moved up
the list. When another track is added
to the song list, the track is added
to the end of the list.
To delete the entire song list:
1. Press
Rto turn song list on.
S-LIST displays.
2. Press and hold
Rfor more than
four seconds. One beep sounds
and S-LIST EMPTY displays
to conrm that the song list has
been deleted.If a CD is ejected, and the song list
contains saved tracks from that
CD, those tracks are automatically
deleted from the song list. Any
tracks saved to the song list again
are added to the bottom of the list.
To end song list mode, press
the
Rbutton. One beep sounds
and S-LIST is removed from
the display.
Care of CDs and the CD
Player
Care of CDs
Store CD(s) in their original cases
or other protective cases and
away from direct sunlight and dust.
The CD player scans the bottom
of the disc. If the bottom of a CD is
damaged it may not play properly
or at all. Do not touch the bottom of
a CD while handling it. 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 dirty, take a
soft, lint free cloth or dampen a
clean, soft cloth in a mild, neutral
detergent solution mixed with water,
and clean it. Make sure the wiping
process starts from the center to
the edge.
Care of the CD Player
Do not add labels to a CD, it could
get caught in the CD player.
Use a marking pen to write on the
top of the CD if a description is
needed.
Do not use CD lens cleaners, they
could damage the CD player.
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
3-50 Instrument Panel

This device complies with RSS-210
of Industry Canada. Operation is
subject to the following two
conditions:
1. This device may not cause
interference.
2. This device must accept any
interference received, including
interference that may cause
undesired operation of the
device.
Changes or modications to this
system by other than an authorized
service facility could void
authorization to use this equipment.
Theft-Deterrent Feature
THEFTLOCK®is designed to
discourage theft of the vehicle’s radio
by learning a portion of the Vehicle
Identication Number (VIN). The
radio does not operate and LOCKED
displays if the radio is stolen or
moved to a different vehicle.When the when the ignition is in the
off position, a blinking red light on
the upper left side of the radio
indicates that THEFTLOCK
®
is armed.
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 likestorms 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.
3-62 Instrument Panel

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.
Fixed Mast Antenna
The xed 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.
XM™ Satellite Radio
Antenna System
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 may
be affected if the sunroof is open.
Instrument Panel 3-63

Police records show that almost
40 percent of all motor
vehicle-related deaths involve
alcohol. In most cases, these
deaths are the result of someone
who was drinking and driving.
In recent years, more than
17,000 annual motor vehicle-related
deaths have been associated
with the use of alcohol, with about
250,000 people injured.
For persons under 21, it is
against the law in every U.S. state
to drink alcohol. There are good
medical, psychological, and
developmental reasons for
these laws.
The obvious way to eliminate the
leading highway safety problem
is for people never to drink alcohol
and then drive.
Medical research shows that
alcohol in a person’s system can
make crash injuries worse,
especially injuries to the brain,
spinal cord, or heart. This means
that when anyone who hasbeen drinking — driver or
passenger — is in a crash, that
person’s chance of being killed or
permanently disabled is higher than
if the person had not been
drinking.
Control of a Vehicle
The following three systems
help to control the vehicle while
driving — brakes, steering,
and accelerator. At times, as when
driving on snow or ice, it is easy
to ask more of those control systems
than the tires and road can
provide. Meaning, you can lose
control of the vehicle. SeeTraction
Control System (TCS) on page 4-7.
Adding non-dealer/non-retailer
accessories can affect vehicle
performance. SeeAccessories and
Modifications on page 5-3.
Braking
SeeBrake System Warning Light on
page 3-27.
Braking action involves perception
time and reaction time. Deciding
to push the brake pedal is
perception time. Actually doing
it is reaction time.
Average reaction time is about
three-fourths of a second. But that
is only an average. It might be
less with one driver and as long as
two or three seconds or more
with another. Age, physical
condition, alertness, coordination,
and eyesight all play a part. So
do alcohol, drugs, and frustration.
But even in three-fourths of a
second, a vehicle moving at 60 mph
(100 km/h) travels 66 feet (20 m).
That could be a lot of distance in an
emergency, so keeping enough
space between the vehicle
and others is important.
Driving Your Vehicle 4-3

And, of course, actual stopping
distances vary greatly with the
surface of the road, whether it is
pavement or gravel; the condition of
the road, whether it is wet, dry, or
icy; tire tread; the condition of
the brakes; the weight of the vehicle;
and the amount of brake force
applied.
Avoid needless heavy
braking. Some people drive in
spurts — heavy acceleration
followed by heavy braking — rather
than keeping pace with traffic.
This is a mistake. The brakes might
not have time to cool between
hard stops. The brakes will wear out
much faster with a lot of heavy
braking. Keeping pace with
the traffic and allowing realistic
following distances eliminates a lot
of unnecessary braking. That
means better braking and longer
brake life.
If the vehicle ever loses electrical
power while it is being driven, brake
normally but do not pump the
brakes. If the brakes are pumped,the pedal could get harder to push
down. If the vehicle loses electrical
power, there will still be some
power brake assist but it will be
used when the brake is applied.
Once the power assist is used up, it
can take longer to stop, the brake
pedal will be harder to push,
and you might experience longer
pedal travel.
Adding non-dealer/non-retailer
accessories can affect vehicle
performance. SeeAccessories and
Modifications on page 5-3.
Hill Start Assist
This vehicle has a Hill Start Assist
(HSA) feature, which may be
useful when the vehicle is stopped
on a grade. This feature is
designed to prevent the vehicle from
rolling, either forward or rearward,
during vehicle drive off. After
the vehicle is stopped on an incline,
push the brake pedal completely
to the oor to activate Hill StartAssist. When the system activates,
a chime will sound and the HSA
ON message will be displayed.
Letting off the brake pedal slightly or
applying the accelerator pedal to
disengage Hill Start Assist gives the
driver two seconds to pull forward
or back up before the vehicle
starts to roll. Lightly ease off the
brake pedal to disengage Hill
Start Assist. The brakes will
automatically be held for a maximum
of two seconds while the driver
switches from applying the brakes
to pushing the accelerator pedal.
When Hill Start Assist is active, the
driver might experience a “hard
pedal.” This is normal and does not
affect safe brake operation.
On steeper hills, Hill Start Assist will
only activate if the driver tries to
move the vehicle up the hill. It will
not activate if the vehicle is in a
drive gear and facing downhill or if
the vehicle is facing uphill and
in R (Reverse).
4-4 Driving Your Vehicle

Antilock Brake
System (ABS)
This vehicle has the Antilock Brake
System (ABS), an advanced
electronic braking system that will
help prevent a braking skid.
When the engine is started and the
vehicle begins to drive away,
ABS checks itself. A momentary
motor or clicking noise might
be heard while this test is going on.
This is normal.
If there is a problem with ABS, this
warning light stays on. See
Antilock Brake System (ABS)
Warning Light on page 3-28.Let us say the road is wet and you
are driving safely. Suddenly, an
animal jumps out in front of you. You
slam on the brakes and continue
braking. Here is what happens
with ABS:
A computer senses that the wheels
are slowing down. If one of the
wheels is about to stop rolling, the
computer will separately work
the brakes at each wheel.
ABS can change the brake pressure
to each wheel, as required, faster
than any driver could. This can help
the driver steer around the
obstacle while braking hard.
As the brakes are applied, the
computer keeps receiving updates
on wheel speed and controls braking
pressure accordingly.Remember: ABS does not change
the time needed to get a foot
up to the brake pedal or always
decrease stopping distance. If you
get too close to the vehicle in
front of you, there will not be enough
time to apply the brakes if that
vehicle suddenly slows or stops.
Always leave enough room up
ahead to stop, even with ABS.
Using ABS
Do not pump the brakes. Just hold
the brake pedal down rmly and
let antilock work. The brakes might
vibrate or some noise might be
heard, but this is normal.
Driving Your Vehicle 4-5

automatically disabled. See
Full-Time Four-Wheel Drive on
page 2-24for more information. 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 it is
necessary to “rock” the vehicle to
attempt to free it. SeeIf Your
Vehicle is Stuck in Sand, Mud, Ice,
or Snow on page 4-33.
To turn the system off, press and
hold the TCS/StabiliTrak button until
the traction off light comes on.
This light comes on steady when
TCS has been turned off. This light
ashes when StabiliTrak is active.To Turn off TCS and StabiliTrak,
press and hold the TCS/StabiliTrak
button until the STAB SYS OFF
message displays on the DIC. Press
and release the TCS/StabiliTrak
button again to turn StabiliTrak
back on. See “Traction Control
System (TCS)”, following, for more
information on turning TCS off
and on.
Traction Control
System (TCS)
The vehicle has a Traction Control
System (TCS) that limits wheel
spin. This is especially useful
in slippery road conditions. The
system operates only if it senses
that any of the wheels are spinning
or beginning to lose traction.
When this happens, TCS reduces
engine power. The system may
be heard or felt while it is working.
This is normal and does not
mean there is a problem with the
vehicle.TCS can operate on dry roads
under some conditions. When this
happens, the system may be
heard working or a reduction in
acceleration may be noticed. This is
normal and does not mean there
is a problem with the vehicle.
Examples of these conditions
include hard acceleration in a turn,
an abrupt upshift or downshift of
the transmission or driving on rough
roads.
If cruise control is being used when
TCS begins to limit wheel spin,
the cruise control automatically
disengages. The cruise control
can be re-engaged when road
conditions allow. SeeCruise Control
on page 3-9for more information.
TRACTION FAULT appears on
the Driver information Center (DIC)
when a TCS or antilock brake
system problem has been detected
and the vehicle needs service.
When this message is on, the
system will not limit wheel spin.
Driving Your Vehicle 4-7

Adjust your driving accordingly. See
DIC Warnings and Messages on
page 3-37for more information.
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 it is necessary to
“rock” the vehicle to attempt to free
it. SeeIf Your Vehicle is Stuck
in Sand, Mud, Ice, or Snow
on page 4-33for more information.
To turn the system off, press and
release the TCS/StabiliTrak
®button.When TCS has been turned off, this
light comes on steady and TRAC
OFF appears on the DIC. This light
ashes when TCS is active.
Press and release the
TCS/StabiliTrak button again to turn
the system back on. The TRAC
OFF message then goes off. TCS
automatically comes on whenever
the vehicle is started and resets
itself at each ignition cycle.
Adding non-dealer/non-retailer
accessories can affect the vehicle’s
performance. SeeAccessories
and Modifications on page 5-3.
Locking Rear Axle
For vehicles with this feature,
additional traction can be obtained
from the rear wheels when
traveling in off-road situations such
as mud, snow, sand, steep hills
and uneven terrain.
The button used to turn this feature
on or off is located on the
instrument panel.
To lock the rear axle, do the
following:
1. Place the transfer case in the
4LO Lock mode. This is the
only mode which will allow
the rear axle to lock. See
Full-Time Four-Wheel Drive on
page 2-24for more information
regarding the transfer case
and 4LO Lock mode.
4-8 Driving Your Vehicle