2009 HUMMER H3 wheel

The instrument panel lights, cluster,
and radio display do not dim to
complete darkness. Turn the
thumbwheel all the way up to turn
the dome lamps on.
Dome Lamp
The dome lamps are located in the
front area of the vehicle. There
is also a dome lamp in the cargo
area of the H3 model only.
Turn the thumbwheel, located next
to the exterior lamps control, all
the way up to turn the dome
and footwell lamps on. In this
position, the lamps remain on
whether a door is opened or closed.
The dome lamp in the cargo area
automatically turns off when:
The shift lever is shifted out of
P (Park) (automatic
transmissions).
The parking brake is released
(manual transmissions).
Dome Lamp Override
E
(Dome Lamp Override):You
can use the dome override
button, located below the exterior
lamps control, to set the dome
and footwell lamps to come
on automatically when a door is
opened, or to remain off. To turn the
lamps off, press the
Ebutton in.
With the button in this position,
the dome lamps will remain off when
the doors are open. To return the
lamps to automatic operation, press
Eagain and return it to the out
position. With the button in this
position, the dome lamps will come
on when a door is opened.
Exit Lighting
The interior lamps will come on
when the key is removed from the
ignition. The lamps will not come on
if the dome override button is
pressed in.
Reading Lamps
The reading lamps are located in
the overhead console.
Press the button located next to
each lamp to turn them on or off.
These lamps will not come on
with the dome lamps.
3-16 Instrument Panel

Rear Window Defogger
The rear window defogger uses a
warming grid to remove fog or
frost from the rear window when the
key is in the ignition and turned
to ON/RUN.
=(Rear Defogger):Press to turn
the rear window defogger on or
off. After the button is rst pressed
the rear window defogger stays
on for about 15 minutes. If turned on
again, the defogger only runs for
about seven and one-half minutes.
Notice:Do not use anything
sharp on the inside of the rear
window. If you do, you could cut
or damage the warming grid, and
the repairs would not be covered
by the vehicle warranty. Do not
attach a temporary vehicle
license, tape, a decal or anything
similar to the defogger grid.
Outlet Adjustment
Use the air outlets located in the
center and on the side of the
instrument panel to direct the
airow.
This vehicle has air outlets that
allow you to adjust the direction and
amount of airow inside the
vehicle. Move the louvers up or
down to change the direction of the
airow. Use the thumbwheel
under the outlets to change the
direction of the airow from left
to right.Operation TipsUse the recirculation mode for
maximum air conditioning
performance.
Clear away any ice, snow or
leaves from the air inlets at
the base of the windshield that
may block the ow of air into the
vehicle.
Use of non-GM approved hood
deectors may adversely affect
the performance of the system.
Keep the path under the
front seats clear of objects to help
circulate the air inside of the
vehicle more effectively.
Instrument Panel 3-21

brakes and there is a problem with
the regular brakes. SeeBrake
System Warning Light on page 3-27.
For vehicles with a Driver
Information Center (DIC), seeDIC
Warnings and Messages on
page 3-37for all brake related DIC
messages.
StabiliTrak®/Traction
Control System (TCS)
Warning Light
The StabiliTrak system or the
Traction Control System (TCS)
indicator/warning light comes
on briey while starting the engine.
If it does not, have the vehicle
serviced by your dealer/retailer. If
the system is working normally
the indicator light will then go off.The indicator/warning light ashes
while the StabiliTrak or TCS system
is working to control the vehicle
on a low traction surface.
If the TCS warning light comes on
and stays on while driving, the
vehicle needs service.
The light comes on when the TCS
and the StabiliTrak system is
turned off. If the TCS is off, wheel
spin is not limited. If the StabiliTrak
system is off, the system does
not assist in controlling the vehicle.
Turn on the TCS and the
StabiliTrak system and the warning
light turns off.
SeeStabiliTrak
®System on
page 4-6andTraction Control
System (TCS) on page 4-7for more
information
Engine Coolant
Temperature Gage
This gage shows the engine coolant
temperature.
If the gage pointer is in the shaded
area of the gage, the engine is
too hot. It means that the engine
coolant has overheated. If the
vehicle has been operating under
normal driving conditions, pull off the
road, stop your vehicle and turn
off the engine as soon as possible.
SeeEngine Overheating on
page 5-27for more information.
United StatesCanada
Instrument Panel 3-29

message and clear it from the
display. The message appears at
each ignition cycle until the tires are
inated to the correct ination
pressure. SeeTires on page 5-44
andInflation - Tire Pressure on
page 5-51for more information on
tires and the correct ination
pressures.
OIL
This message displays when the oil
pressure is low. SeeOil Pressure
Light on page 3-32andEngine
Oil on page 5-13for more
information.
PARK BRK (Brake)
This message displays when the
parking brake is set. SeeParking
Brake on page 2-28andBrake
System Warning Light on page 3-27
for more information. The message
clears from the display after the
parking brake is released or by
pressing and releasing the
reset stem.
REDUCED POWER
This message displays when the
vehicle’s engine power is reduced.
Reduced engine power can
affect the vehicle’s ability to
accelerate. If this message is on,
but there is no reduction in
performance, proceed to your
destination. The performance may
be reduced the next time the vehicle
is driven. The vehicle may be
driven at a reduced speed while this
message is on, but acceleration
and speed may be reduced. Anytime
this message stays on, the vehicle
should be taken to your
dealer/retailer for service as soon as
possible. Press and release the
reset stem to acknowledge
the message and clear it from the
display.
SERV (Service) 4WD
(Four-Wheel Drive)
This message displays when there
is a problem with the transfer
case control system. Check the
transfer case on the vehicleand have it serviced by your
dealer/retailer. SeeFull-Time
Four-Wheel Drive on page 2-24for
more information about the
transfer case. Press and release the
reset stem to acknowledge the
message and clear it from the
display.
SERV (Service) TPM
(Tire Pressure Monitor)
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays if a part on the
TPMS is not working properly.
The tire pressure light also ashes
and then remains on during the
same ignition cycle. SeeTire
Pressure Light on page 3-30.
Several conditions may cause this
message to appear. SeeTire
Pressure Monitor Operation on
page 5-54for more information. If
the warning comes on and stays on,
there may be a problem with the
TPMS. See your dealer/retailer.
Instrument Panel 3-39

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

Braking in Emergencies
ABS allows the driver to steer
and brake at the same time. In many
emergencies, steering can help
more than even the very best
braking.
Brake Assist
This vehicle has a Brake Assist
feature designed to assist the driver
in stopping or decreasing vehicle
speed in emergency driving
conditions. This feature uses the
stability system hydraulic brake
control module to supplement the
power brake system under
conditions where the driver has
quickly and forcefully applied
the brake pedal in an attempt to
quickly stop or slow down the
vehicle. The stability system
hydraulic brake control module
increases brake pressure at each
corner of the vehicle until the
ABS activates. Minor brake pedal
pulsations or pedal movement
during this time is normal and the
driver should continue to applythe brake pedal as the driving
situation dictates The Brake Assist
feature will automatically disengage
when the brake pedal is released
or brake pedal pressure is quickly
decreased.
StabiliTrak®System
The vehicle has a vehicle stability
enhancement system called
StabiliTrak. It is an advanced
computer controlled system that
assists the driver with directional
control of the vehicle in difficult
driving conditions.
StabiliTrak activates when the
computer senses a discrepancy
between the intended path and the
direction the vehicle is actually
traveling. StabiliTrak selectively
applies braking pressure at any one
of the vehicle’s brakes to assist
the driver with keeping the vehicle
on the intended path.
When the vehicle is started and
begins to move, the system
performs several diagnostic checksto insure there are no problems.
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.
If cruise control is being used when
StabiliTrak activates, the cruise
control automatically disengages.
The cruise control can be
re-engaged when road conditions
allow. SeeCruise Control on
page 3-9.
If there is a problem detected with
StabiliTrak, a SERVICE STAB
SYS message displays on the Driver
Information Center (DIC). See
DIC Warnings and Messages on
page 3-37for more information.
When this message is displayed, the
system is not working. Adjust your
driving accordingly.
StabiliTrak comes on automatically
whenever the vehicle is started
and resets itself at each ignition
cycle. However, when the transfer
case is placed in Four-Wheel-Low
Lock mode, StabiliTrak is
4-6 Driving Your Vehicle

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