2007 HUMMER H3 climate control

Seats and Restraint Systems
....................... 7
Front Seats
.............................................. 8
Rear Seats
............................................. 14
Safety Belts
............................................ 17
Child Restraints
...................................... 39
Airbag System
........................................ 65
Restraint System Check
......................... 82
Features and Controls
................................ 85
Keys
....................................................... 87
Doors and Locks
.................................... 92
Windows
................................................ 96
Theft-Deterrent Systems
......................... 98
Starting and Operating Your Vehicle
....... 101
Mirrors
.................................................. 122
OnStar
®System
................................... 129Universal Home Remote System
.......... 132
Storage Areas
...................................... 143
Sunroof
................................................ 147
Instrument Panel
....................................... 149
Instrument Panel Overview
................... 152
Climate Controls
................................... 170
Warning Lights, Gages, and
Indicators
.......................................... 174
Driver Information Center (DIC)
............ 192
Audio System(s)
................................... 201
Driving Your Vehicle
................................. 233
Your Driving, the Road, and
Your Vehicle
..................................... 234
Towing
................................................. 294
2007 HUMMER H3 Owner ManualM
1

Vehicle Damage Warnings
Also, in this manual you will nd these notices:
Notice:These mean there is something
that could damage your vehicle.
A notice tells about something that can damage
the vehicle. Many times, this damage would not be
covered by your vehicle’s warranty, and it could
be costly. But the notice will tell what to do to help
avoid the damage.
When you read other manuals, you might see
CAUTION and NOTICE warnings in different colors
or in different words.
There are also warning labels on the vehicle.
They use the same words, CAUTION or NOTICE.
Vehicle Symbols
The vehicle has components and labels that use
symbols instead of text. Symbols are shown
along with the text describing the operation or
information relating to a specic component,
control, message, gage, or indicator.
If you need help guring out a specic name of
a component, gage, or indicator, reference
the following topics:
Seats and Restraint Systems in Section 1
Features and Controls in Section 2
Instrument Panel Overview in Section 3
Climate Controls in Section 3
Warning Lights, Gages, and Indicators in
Section 3
Audio System(s) in Section 3
Engine Compartment Overview in Section 5
5

Running the Engine While Parked
It is better not to park with the engine running. But if
you ever have to, here are some things to know.
{CAUTION:
Idling the engine with the climate control
system off could allow dangerous exhaust
into your vehicle. See the earlier caution
underEngine Exhaust on page 120.
Also, idling in a closed-in place can let
deadly carbon monoxide (CO) into your
vehicle even if the climate control fan is at
the highest setting. One place this can
happen is a garage. Exhaust — with
CO — can come in easily. NEVER park in
a garage with the engine running.
Another closed-in place can be a blizzard.
SeeWinter Driving on page 281.
{CAUTION:
It can be dangerous to get out of your
vehicle if the automatic transmission shift
lever is not fully in PARK (P) with the
parking brake rmly set. Your vehicle can
roll. Do not leave your vehicle when the
engine is running unless you have to. If
you have left the engine running, the
vehicle can move suddenly. You or others
could be injured. To be sure your vehicle
will not move, even when it is on fairly
level ground, always set the parking brake
and move the automatic transmission
shift lever to PARK (P), or the manual
transmission shift lever to NEUTRAL.
Follow the proper steps to be sure your vehicle will
not move. SeeShifting Into Park (P) (Automatic
Transmission) on page 117andParking Your
Vehicle (Manual Transmission) on page 119.
If you are pulling a trailer with your vehicle, see
Towing a Trailer on page 297.
121

Instrument Panel Overview........................ 152
Hazard Warning Flashers.......................... 154
Other Warning Devices............................. 154
Horn.......................................................... 154
Tilt Wheel.................................................. 154
Turn Signal/Multifunction Lever.................. 155
Turn and Lane-Change Signals................. 156
Headlamp High/Low-Beam Changer.......... 157
Flash-to-Pass............................................ 157
Windshield Wipers..................................... 157
Windshield Washer.................................... 158
Rear Window Wiper/Washer...................... 159
Cruise Control........................................... 159
Exterior Lamps.......................................... 162
Headlamps on Reminder........................... 164
Daytime Running Lamps (DRL)................. 164
Automatic Headlamp System..................... 165
Off-Road Lamps........................................ 166
Fog Lamps................................................ 167
Instrument Panel Brightness...................... 167
Dome Lamp.............................................. 167
Dome Lamp Override................................ 168
Exit Lighting.............................................. 168Reading Lamps......................................... 168
Electric Power Management...................... 168
Battery Run-Down Protection..................... 169
Accessory Power Outlet(s)........................ 169
Ashtray(s) and Cigarette Lighter................ 170
Climate Controls......................................... 170
Climate Control System............................. 170
Outlet Adjustment...................................... 173
Warning Lights, Gages, and Indicators..... 174
Instrument Panel Cluster........................... 175
Speedometer and Odometer...................... 176
Trip Odometer........................................... 176
Tachometer............................................... 176
Safety Belt Reminder Light........................ 177
Passenger Safety Belt Reminder Light....... 177
Airbag Readiness Light............................. 178
Passenger Airbag Status Indicator............. 179
Battery Warning Light................................ 181
Up-Shift Light (Manual Transmission)........ 181
Brake System Warning Light..................... 182
Anti-Lock Brake System
Warning Light........................................ 183
Section 3 Instrument Panel
149

The main components of your instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on page 173.
B. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 155.
Windshield Washer/Wiper. SeeWindshield
Wipers on page 157andWindshield Washer
on page 158. Cruise Controls. SeeCruise
Control on page 159.
C. Horn. SeeHorn on page 154.
D. Instrument Panel Cluster. SeeInstrument
Panel Cluster on page 175.
E. Hazard Warning Flasher Button. SeeHazard
Warning Flashers on page 154.
F. All-Wheel Drive, Passenger Air Bag Status
Indicator, Locking Rear Axle, and Traction
Control System/StabiliTrak
®Buttons. See
Full-Time Four-Wheel Drive on page 111,
Passenger Airbag Status Indicator on page 179,
Locking Rear Axle on page 243,Traction
Control System (TCS) on page 241and
StabiliTrak
®System on page 244.
G. Exterior Lamps Control, Dome Override Button,
Instrument Panel Brightness Control, Fog Lamp
Button, and OnStar
®Button. SeeExterior LampsLamps on page 162,Dome Lamp Override
on page 168,Instrument Panel Brightness
on page 167,Fog Lamps on page 167, and
OnStar
®System on page 129.
H. Parking Brake Release. SeeParking Brake
on page 116.
I. Audio System. SeeAudio System(s) on
page 201.
J. Climate Control System. SeeClimate Control
System on page 170.
K. Rear Washer/Wiper Control. SeeRear Window
Wiper/Washer on page 159.
L. Off-Road Lamps Buttons. SeeOff-Road Lamps
on page 166.
M. Shift Lever. SeeAutomatic Transmission
Operation on page 106orManual Transmission
Operation on page 109.
N. Accessory Power Outlets. SeeAccessory
Power Outlet(s) on page 169.
O. Glove Box. SeeGlove Box on page 143.
153

Rear Window Wiper/Washer
This knob is located
on the instrument
panel below the
climate controls.
Z(Rear Wiper):To turn the rear wiper on,
turn the knob to either 1 or 2. For a slower
wiping speed, turn the knob to 1. For a faster
wiping speed, turn the knob to 2
0 (Off):To turn the wiper off, turn the knob to
this symbol.
=(Washer Fluid):To wash and wipe the window,
press the button within the knob with this symbol.
The rear window washer uses the same uid bottle
as the windshield washer. However, the rear
window washer will run out of uid before the
windshield washer. If you can wash your windshield
but not your rear windows, check the uid level.
Cruise Control
With cruise control, you can maintain a speed
of about 25 mph (40 km/h) or more without
keeping your foot on the accelerator. This can
really help on long trips. Cruise control does not
work at speeds below about 25 mph (40 km/h).
9(Off):This position
turns the system off.
R(On):This position activates the system.
+ (Resume/Accelerate):Move the lever to this
symbol to make the vehicle accelerate or resume
to a previously set speed.
rT(Set):Press this button to set the speed.
159

If you start your vehicle in a dark garage, the
automatic headlamp system will come on
immediately. Once you leave the garage, it will
take about one minute for the automatic headlamp
system to change to DRL if it is light outside.
During that delay, the instrument panel cluster
may not be as bright as usual. Make sure
the instrument panel brightness control is in
the full bright position. SeeInstrument Panel
Brightness on page 167.
Off-Road Lamps
The off-road lamps, if the vehicle has them,
provide auxiliary lighting when the vehicle is
used off road. These lamps are not intended to
be used in place of existing vehicle lighting.
The lamps are not to be used on any public street
or highway and are to be covered when not in
use. Check your state and local laws before
installing or using any auxiliary lighting. In some
states it may be necessary to remove the roof
lamps when operating the vehicle on the highway.The switches for the off-road lamps are located in
the center of the instrument panel below the climate
controls. One switch is used for the front lower-grille
mounted off-road lamps, if the vehicle has them,
and the other switch is used for the roof-mounted
off-road lamps, if the vehicle has them.
To use the lamps, remove the covers from the
lamps and press the switch to turn them on or
off. An indicator light on the switch will turn
on when the lamps are on.
Notice:Turning on the off-road lamps before
removing the lamp covers could damage the
off-road lamps and the covers. Always remove
the covers before turning on the off-road lamps.
The off-road lamps remain on even after the ignition
is turned off. The off-road lamp switch must be
pressed to turn them off.
Roof Mounted Off-Road
Light SwitchLower Grille Off-Road
Light Switch
166

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 button into the in position. 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 the
button again and return it to the out position.
With the button in this position, the dome lamps
will come on when you open a door.
Exit Lighting
With exit lighting, the interior lamps will come
on when you remove the key from the ignition.
The lamps will not come on if the dome override
button is pressed in.
Reading Lamps
Your vehicle has reading lamps. Press the button
located next to the lamp to turn them on or off.
These lamps will not come on with the dome lamps.
Electric Power Management
The vehicle has Electric Power Management (EPM)
that estimates the battery’s temperature and state
of charge. It then adjusts the voltage for best
performance and extended life of the battery.
When the battery’s state of charge is low, the
voltage is raised slightly to quickly put the charge
back in. When the state of charge is high, the
voltage is lowered slightly to prevent overcharging.
If the vehicle has a voltmeter gage, you may
see the voltage move up or down. This is normal.
If there is a problem, an alert will be displayed.
The battery can be discharged at idle if the
electrical loads are very high. This is true for all
vehicles. This is because the generator (alternator)
may not be spinning fast enough at idle to
produce all the power that is needed for very
high electrical loads.
A high electrical load occurs when several of the
following loads are on: headlamps, high beams,
fog lamps, rear window defogger, climate
control fan at high speed, heated seats, engine
cooling fans, trailer loads, and loads plugged into
accessory power outlets.
168