2007 HUMMER H3 Owners Manual

Battery Run-Down Protection
This feature shuts off the dome lamp if it is left
on for more than 20 minutes when the ignition
is in LOCK. This will help prevent your battery
from running down.
Accessory Power Outlet(s)
Your vehicle has accessory power outlets.
With accessory power outlets you can plug in
auxiliary electrical equipment such as a cellular
telephone or CB radio.
Your vehicle has two accessory power outlets
located on the lower part of the instrument panel
below the climate control system and there
may be one located in the rear cargo area.
A small cap must be pulled down to access an
accessory power outlet. When not using an outlet,
be sure to cover it with the protective cap.
Notice:Leaving electrical equipment on for
extended periods will drain the battery. Always
unplug electrical equipment when not in use
and do not plug in equipment that exceeds the
maximum amperage rating of 20 amperes.Certain electrical accessories may not be
compatible with the accessory power outlet and
could result in blown vehicle or adapter fuses.
If you experience a problem, see your dealer for
additional information on accessory power outlets.
Notice:Adding any electrical equipment to
your vehicle may damage it or keep other
components from working as they should.
The repairs would not be covered by your
warranty. Do not use equipment exceeding
maximum amperage rating of 20 amperes.
Check with your dealer before adding electrical
equipment.
When adding electrical equipment, be sure to
follow the proper installation instructions included
with the equipment.
Notice:Improper use of the power outlet
can cause damage not covered by your
warranty. Do not hang any type of accessory
or accessory bracket from the plug because
the power outlets are designed for accessory
power plugs only.
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Ashtray(s) and Cigarette Lighter
Your vehicle may have an ashtray and cigarette
lighter.
Your ashtray is located in your center console
area. The ashtray can be removed for cleaning.
When the ashtray is removed, this area can
also be used as a cupholder.
Notice:If you put papers, pins, or other
ammable items in the ashtray, hot cigarettes
or other smoking materials could ignite
them and possibly damage your vehicle.
Never put ammable items in the ashtray.
To use the lighter, press it in all the way, and let
go. When it’s ready, it will pop back out by itself.
Notice:Holding a cigarette lighter in while it
is heating will not allow the lighter to back
away from the heating element when it is hot.
Damage from overheating may occur to the
lighter or heating element, or a fuse could
be blown. Do not hold a cigarette lighter
in while it is heating.
Climate Controls
Climate Control System
This system controls the heating, cooling, and
ventilation of the vehicle. In-between modes are
available by moving the right control knob between
modes with symbols. The in-between mode will
be a combination of the two modes that the control
is centered between.
Temperature:Turn the left knob on the control
panel to adjust the temperature of the air in
the vehicle. Turn the knob clockwise or
counterclockwise to increase or decrease the
temperature.
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#(Air Conditioning):Press the left knob on the
control panel to turn the air conditioning system
on or off. An indicator light on the button will be
lit when the air conditioning is turned on. This
system cools and dehumidies the air entering
the vehicle.
The air conditioning will not function if the fan
is turned off. If air conditioning is selected with
fan off, the indicator will ash three times and
then turn off.
A slight change in engine performance may occur
when the air conditioning compressor shuts off
and turns on again. This is normal. The system is
designed to make adjustments to help with fuel
economy while still maintaining the selected
temperature.
The air conditioning system removes moisture from
the air, so sometimes there may be a small amount
of water dripping underneath the vehicle while idling
or after turning off the engine. This is normal.9(Fan):Turn the center knob on the control
panel to control the fan speed. Turn the knob
clockwise or counterclockwise to increase
or decrease the fan speed.
9(Off):Turn the center knob to this position
to turn the fan off. With the fan off, you may
still experience airow from the system that
increases with vehicle speed depending on the
mode and temperature settings. Enable
recirculation mode to stop this airow from
occurring.
The right knob on the control panel is used to
direct the airow inside the vehicle. Turn the knob
to select one of the following modes:
@(Recirculation):Press the center knob on
the control panel to recirculate air inside the
vehicle and prevent outside air from coming in.
It can be used to prevent outside odors from
entering your vehicle and cool the air inside your
vehicle more quickly. Press this button to turn
the recirculation mode on or off. An indicator light
on the button will come on to let you know the
recirculation mode is activated.
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Recirculation is available in the bi-level, and vent
modes. Recirculation is not available while in
oor, oor/defog and defrost mode. If recirculation
is selected in these modes, the indicator will
ash three times indicating it is not available in
that mode. When the recirculation mode is turned
on, the air conditioning will turn on automatically.
H(Vent):Turn the right knob on the control
panel to this mode to direct air to the instrument
panel outlets.
\(Bi-Level):Turn the right knob on the control
panel to this mode to direct air to the instrument
panel outlets, and the remaining air to the
oor outlets and the defroster and side window
outlets. Cooler air is directed to the upper outlets
and warmer air to the oor outlets.
[(Floor):Turn the right knob on the control
panel to this mode to direct air to the oor outlets,
side window outlets, and defroster. Recirculation
is not available in this mode.
Defogging and Defrosting
Fog on the inside of windows is a result of high
humidity (moisture) condensing on the cool window
glass. This can be minimized if the climate
control system is used properly. There are
two modes to clear fog or frost from your
windshield and side windows. Use the defog mode
to clear the windows of fog or moisture and
warm the passengers. Use the defrost mode to
remove fog or frost from the windshield more
quickly. For best results, clear all snow and ice
from the windshield before defrosting.
/(Floor/Defog):Turn the right knob on the
control panel to this mode to direct the air to
the windshield, the side window outlets, and to
the oor outlets. When you select this mode, the
system runs the air conditioning system unless
the outside temperature is near freezing or below.
Recirculation is not available in this mode.
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0(Defrost):Turn the right knob on the control
panel to this mode to direct most of the air to the
windshield, and the side window outlets. When
you select this mode, the system runs the air
conditioning system unless the outside temperature
is near or below freezing. Recirculation is not
available in this mode.
Do not drive the vehicle until all the windows
are clear.
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.
=(Rear Defogger):Press the right knob on the
control panel to turn the rear window defogger
on or off. First press of this button will activate
the rear window defogger for 15 minutes and
each subsequent activation lasts 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 your 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 your instrument panel to direct
the airow.
Your 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 Tips

Enable 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 your 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 your vehicle more effectively.
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Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages
that may be on your vehicle. The pictures will
help you locate them.
Warning lights and gages can signal that
something is wrong before it becomes serious
enough to cause an expensive repair or
replacement. Paying attention to your warning
lights and gages could also save you or others
from injury.
Warning lights come on when there may be or is
a problem with one of your vehicle’s functions.
As you will see in the details on the next few
pages, some warning lights come on briey when
you start the engine just to let you know they
are working. If you are familiar with this section,
you should not be alarmed when this happens.Gages can indicate when there may be or is a
problem with one of your vehicle’s functions.
Often gages and warning lights work together
to let you know when there is a problem with your
vehicle.
When one of the warning lights comes on and
stays on when you are driving, or when one of
the gages shows there may be a problem, check
the section that tells you what to do about it.
Please follow this manual’s advice. Waiting to do
repairs can be costly — and even dangerous.
So please get to know your warning lights
and gages. They are a big help.
Your vehicle has a DIC that works along with the
warning lights and gages. SeeDriver Information
Center (DIC) on page 192for more information.
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Instrument Panel Cluster
Your instrument panel cluster is designed to let you know at a glance how your vehicle is running.
You will know how fast you are going, about how much fuel you have used, and many other things
you will need to know to drive safely and economically.
United States Automatic Transmission version shown, Canada and Manual Transmission similar
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Speedometer and Odometer
Your speedometer lets you see your speed
in both miles per hour (mph) and kilometers
per hour (km/h).
Your odometer shows how far your vehicle has
been driven, in either miles or kilometers.
The odometer mileage can be checked with the
ignition off. Simply press the trip information
stem. See “Odometer” underDIC Controls and
Displays on page 192for more information.
You may wonder what happens if your vehicle
needs a new odometer installed. If the new
one can be set to the mileage total of the old
odometer, then it must be. But if it cannot, then
it is set at zero, and a label must be put on
the driver’s door to show the old mileage reading
when the new odometer was installed.
Trip Odometer
Your vehicle has a trip odometer that can tell you
how far your vehicle has been driven since you last
set the trip odometer to zero.
See “Trip Odometer” underDIC Controls and
Displays on page 192for more information.
Tachometer
The tachometer
displays the engine
speed in revolutions
per minute (rpm).
Notice:If you operate the engine with the
tachometer in the shaded warning area, your
vehicle could be damaged, and the damages
would not be covered by your warranty.
Do not operate the engine with the tachometer
in the shaded warning area.
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