2004 HUMMER H2 climate control

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-7
Safety Belts
.............................................1-16
Child Restraints
.......................................1-38
Air Bag System
.......................................1-61
Restraint System Check
............................1-73
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
....................................... 2-7
Windows
.................................................2-14
Theft-Deterrent Systems
............................2-16
Starting and Operating Your Vehicle
...........2-18
Mirrors
....................................................2-34
OnStar
®System
......................................2-40
HomeLink®Transmitter
.............................2-42
Storage Areas
.........................................2-45
Sunroof
..................................................2-50
Vehicle Personalization
.............................2-51
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-2
Climate Controls
......................................3-19
Warning Lights, Gages, and Indicators
........3-26
Driver Information Center (DIC)
..................3-44
Audio System(s)
.......................................3-62Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-65
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
All-Wheel Drive
........................................5-48
Rear Axle
...............................................5-50
Front Axle
...............................................5-51
Bulb Replacement
....................................5-52
Windshield Wiper Blade Replacement
.........5-59
Tires
......................................................5-60
Appearance Care
.....................................5-92
Vehicle Identication
...............................5-101
Electrical System
....................................5-101
Capacities and Specications
...................5-111
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-10
Index................................................................ 1
2004 HUMMER H2 Owner ManualM

Vehicle Damage Warnings
Also, in this book you will nd these notices:
Notice:These mean there is something that could
damage your vehicle.
A notice will tell you about something that can damage
your vehicle. Many times, this damage would not be
covered by your warranty, and it could be costly. But the
notice will tell you 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.
You’ll also see warning labels on your vehicle. They use
the same words, CAUTION or NOTICE.
Vehicle Symbols
Your vehicle has components and labels that use
symbols instead of text. Symbols, used on your vehicle,
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
iv

Liftgate
{CAUTION:
It can be dangerous to drive with the liftgate
open because carbon monoxide (CO) gas can
come into your vehicle. You can not see or
smell CO. It can cause unconsciousness and
even death. If you must drive with the liftgate
open or if electrical wiring or other cable
connections must pass through the seal
between the body and the liftgate:
Make sure all other windows are shut.
Turn the fan on your heating or cooling
system to its highest speed and select the
control setting that will force outside air
into your vehicle. SeeAutomatic Climate
Control System on page 3-19.
If you have air outlets on or under the
instrument panel, open them all the way.
SeeEngine Exhaust on page 2-33.To unlock the liftgate, press the unlock button on any of
the power door lock switches or the remote keyless
entry transmitter.
Open the liftgate by pulling the handle located in the
center of the door.
To lock the liftgate, press the lock button on any of the
power door lock switches or the remote keyless
entry transmitter.
2-13

Engine Exhaust
{CAUTION:
Engine exhaust can kill. It contains the gas
carbon monoxide (CO), which you can not see
or smell. It can cause unconsciousness and
death.
You might have exhaust coming in if:
Your exhaust system sounds strange or
different.
Your vehicle gets rusty underneath.
Your vehicle was damaged in a collision.Your vehicle was damaged when driving
over high points on the road or over road
debris.
Repairs were not done correctly.
Your vehicle or exhaust system had been
modied improperly.
If you ever suspect exhaust is coming into
your vehicle:
Drive it only with all the windows down to
blow out any CO; and
Have your vehicle xed immediately.
Running Your Engine While You
Are 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 under
Engine Exhaust on page 2-33.
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. See
Winter Driving on page 4-52.
2-33

Outside Heated Mirrors
Your vehicle may have this feature.
This button is located on
the climate control panel.
Press this button to warm the heated driver’s and
passenger’s outside rearview mirrors to help clear them
of ice, snow and condensation.
If your vehicle has a rear window defogger, it will also
operate when you press this button. See “Rear Window
Defogger” underAutomatic Climate Control System
on page 3-19for more information.
Outside Automatic Dimming Mirror
with Curb View Assist
Your vehicle may have this feature.
The driver’s outside mirror will adjust for the glare of the
headlamps behind you. SeeAutomatic Dimming
Rearview Mirror with Compass and Temperature Display
on page 2-34.
Your vehicle’s mirrors will also be capable of performing
the curb view assist mirror function. This feature will
cause the passenger’s and/or driver’s mirror to tilt to a
preselected position when the vehicle is in
REVERSE (R). This feature may be useful in allowing
you to view the curb when you are parallel parking.
When the vehicle is shifted out of REVERSE (R) and a
short delay has occurred, the passenger’s and/or
driver’s mirror will return to its original position.
To change the preselected tilt position, adjust the
mirrors to the desired position while the vehicle is in
REVERSE (R). When the vehicle is shifted out of
REVERSE (R), this new position is saved in memory as
the tilt position.
2-39

Vent:The vent position allows you to open the rear
of the sunroof by tilting it upward. To use the vent
position, start with the sunroof in the fully closed
position, then press and hold the front side of the
switch until the sunroof reaches the desired
vent position or until it stops moving. To close the
sunroof from the vent position, press and hold
the rear side of the switch until the sunroof is fully
closed.
Do not to leave the sunroof open for long periods of
time as debris may collect in the tracks.
Sunshade Operation
The sunshade will open automatically when opening the
sunroof.
To adjust the sunshade, pull it backward or forward to
the desired position. The sunshade can not be
closed further than the current closed position of the
sunroof.
Although the sunshade opens automatically when
opening the sunroof, it must be manually pulled closed
after closing the sunroof.
Vehicle Personalization
Memory Seat
If your vehicle has this
feature, the controls for the
memory function are
located on the driver’s door.
These buttons are used to program and recall memory
settings for the driver’s seat, both the driver’s and
passenger’s outside mirror, the radio station presets,
and the previously used climate control system settings.
The settings for these features can be personalized
for both driver 1 and driver 2. Driver 1 or driver 2
corresponds to the memory buttons labeled 1 and 2 on
the driver’s door and the numbers on the back of
the remote keyless entry transmitters.
2-51

To store the memory settings, do the following:
1. Adjust the driver’s seat (including the seatback
recliner, lumbar, and side wing area), both of the
outside mirrors, and the radio station presets to your
preference.
2. Press and hold the 1 or 2 (for driver 1 or 2) button
of the memory control for three seconds. A double
chime will sound to let you know that the position
has been stored.
To repeat the procedure for a second driver, follow the
preceding steps, but press the other numbered
memory control button.
Each time button 1 or 2 is pressed and released while
the vehicle is in PARK (P), a single chime will sound and
the memory position will be recalled.If you use the unlock button on the remote keyless entry
transmitter to enter your vehicle, the preset driver’s
seat, mirror positions, radio station presets and
the previously used climate control system settings will
be recalled if programmed to do so through the
Driver Information Center (DIC). SeeDIC Operation and
Displays on page 3-44. The numbers on the back of
the transmitters, 1 or 2, correspond to the numbers on
the memory controls.
The seat, radio station presets and mirror positions can
also be recalled when placing the key in the ignition
if programmed to do so through the Driver Information
Center (DIC). SeeDIC Operation and Displays on
page 3-44.
To stop recall movement of the memory seat feature at
any time, press one of the memory buttons or power
seat controls.
2-52

Instrument Panel Overview...............................3-2
Hazard Warning Flashers................................3-4
Other Warning Devices...................................3-5
Horn.............................................................3-5
Tilt Wheel.....................................................3-5
Turn Signal/Multifunction Lever.........................3-6
Exterior Lamps.............................................3-13
Interior Lamps..............................................3-16
Accessory Power Outlets...............................3-18
Ashtrays and Cigarette Lighter........................3-18
Climate Controls............................................3-19
Automatic Climate Control System...................3-19
Outlet Adjustment.........................................3-25
Climate Controls Personalization.....................3-25
Warning Lights, Gages, and Indicators............3-26
Instrument Panel Cluster................................3-27
Speedometer and Odometer...........................3-28
Tachometer.................................................3-28
Safety Belt Reminder Light.............................3-28
Air Bag Readiness Light................................3-28
Air Bag Off Light..........................................3-30
Charging System Light..................................3-32
Voltmeter Gage............................................3-32
Brake System Warning Light..........................3-33
Anti-Lock Brake System Warning Light.............3-34
Traction Off Light..........................................3-35Engine Coolant Temperature Gage..................3-35
Transmission Temperature Gage.....................3-36
Malfunction Indicator Lamp.............................3-38
Oil Pressure Gage........................................3-41
Security Light...............................................3-42
Cruise Control Light......................................3-42
Tow/Haul Mode Light....................................3-42
Fuel Gage...................................................3-43
Low Fuel Warning Light.................................3-43
Driver Information Center (DIC).......................3-44
DIC Operation and Displays...........................3-44
DIC Warnings and Messages.........................3-56
Audio System(s).............................................3-62
Setting the Time...........................................3-62
Radio with Cassette and CD..........................3-63
Radio with Six-Disc CD.................................3-74
Navigation/Radio System...............................3-86
Rear Seat Audio (RSA).................................3-87
Theft-Deterrent Feature..................................3-88
Audio Steering Wheel Controls.......................3-89
Radio Reception...........................................3-90
Care of Your Cassette Tape Player.................3-90
Care of Your CDs and DVDs.........................3-92
Care of Your CD and DVD Player...................3-92
Fixed Mast Antenna......................................3-92
Chime Level Adjustment................................3-92
Section 3 Instrument Panel
3-1