Hummer 2003 H2 User manual

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The 2003 HUMMER H2 Owner’s Manual
1-1Seats and Restraint Systems
This section tells you how to use your seats and safety belts properly. It also explains the air bag system.
2-1Features and Controls
This section explains how to start and operate your vehicle.
3-1Comfort Controls and Audio Systems
This section tells you how to adjust the ventilation and comfort controls and how to operate your audio system.
4-1Your Driving and the Road
Here you’ll find helpful information and tips about the road and how to drive under different conditions.
5-1Problems on the Road
This section tells you what to do if you have a problem while driving, such as a flat tire or overheated engine, etc.
6-1Service and Appearance Care
Here the manual tells you how to keep your vehicle running properly and looking good.
7-1Maintenance Schedule
This section tells you when to perform vehicle maintenance and what fluids and lubricants to use.
8-1Customer Assistance Information
This section tells you how to contact HUMMER for assistance and how to get service and owner publications.
It also gives you information on “Reporting Safety Defects” on page 8-9.

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GENERAL MOTORS, GM, the GM Emblem,
HUMMER and the name HUMMER are registered
trademarks and H2 is a trademark of General Motors
Corporation.
This manual includes the latest information at the time
it was printed. We reserve the right to make changes
after that time without further notice. For vehicles first
sold in Canada, substitute the name “General Motors of
Canada Limited” for HUMMER whenever it appears in
this manual.
Please keep this manual in your vehicle, so it will
be there if you ever need it when you’re on the road.
If you sell the vehicle, please leave this manual in it
so the new owner can use it.
We support voluntary
technician certification.
Canadian Owners
Canadian Owners: You can obtain a French copy of
this manual from your dealer or from:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
Litho in U.S.A. E Copyright General Motors Corporation 03/29/02
Part Number S2327 A First Edition All Rights Reserved

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How to Use this Manual
Many people read their owner’s manual from beginning
to end when they first receive their new vehicle. If you
do this, it will help you learn about the features and
controls for your vehicle. In this manual, you’ll find
that pictures and words work together to explain
things quickly.
Safety Warnings and Symbols
You will find a number of safety cautions in this book.
We use a box and the word CAUTION to tell you
about things that could hurt you if you were to ignore
the warning.
CAUTION:
These mean there is something that could hurt
you or other people.
In the caution area, we tell you what the hazard is.
Then we tell you what to do to help avoid or reduce
the hazard. Please read these cautions. If you don’t,
you or others could be hurt.
You will also find a circle
with a slash through it in
this book. This safety
symbol means “Don’t,”
“Don’t do this” or “Don’t
let this happen.”

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Vehicle Damage Warnings
Also, in this book you will find 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 may be equipped with 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
specific component, control, message, gage or indicator.
If you need help figuring out a specific name of a
component, gage or indicator reference the following
topics in the Index:
D “Engine Compartment Overview”
D “Instrument Panel”
D “Comfort Controls”
D “Audio Systems”
Also see “Warning Lights and Gages” in the Index.

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These are some examples of vehicle symbols you may find on your vehicle:

1- 1-1
Section 1 Seats and Restraint Systems
Here you’ll find information about the seats in your vehicle and how to use your safety belts properly. You can also
learn about some things you should not do with air bags and safety belts.
1-2 Seats and Seat Controls
1-16 Safety Belts: They’re for Everyone
1-21 Here Are Questions Many People Ask About
Safety Belts -- and the Answers
1-22 How to Wear Safety Belts Properly
1-22 Driver Position
1-29 Safety Belt Use During Pregnancy
1-30 Right Front Passenger Position
1-30 Air Bag System
1-42 Rear Seat Passengers
1-45 Rear Safety Belt Comfort Guides for Children
and Small Adults
1-48 Center Passenger Position
1-49 Children
1-53 Restraint Systems for Children
1-72 Older Children
1-75 Safety Belt Extender
1-75 Checking Your Restraint Systems
1-76 Replacing Restraint System Parts
After a Crash

1-2
Seats and Seat Controls
This section tells you about the seats -- how to adjust
them, and fold them up and down. It also tells you about
reclining front seatbacks and head restraints.
Power Seats
Horizontal Control: You can adjust your vehicle’s front
seats with the horizontal control located on the outboard
edge of each front seat.
Raise or lower the front of the seat by raising or
lowering the forward edge of the control. Raise or lower
the rear of the seat by raising or lowering the rear edge
of the control.
Move the seat forward or rearward by moving the
whole control toward the front or toward the rear of
the vehicle.
Moving the whole control up or down raises or lowers
the entire seat cushion.
Vertical Control: You can use the vertical control to
adjust the angle of the seatback. Move the reclining
front seatback forward or rearward by moving the
control toward the front or toward the rear of the
vehicle.

1-3
Power Lumbar Control
Use the lumbar control,
located on the outboard
side of the seat, to increase
or decrease lumbar support
in an area of the lower
seatback.
To increase support, press and hold the front of the
control. To decrease support, press and hold the rear
of the control. Let go of the control when the lower
seatback reaches the desired level of support.
You can also reshape the side wing area of the lower
seatback for more lateral support.
To increase support, press and hold the top of the
control. To decrease support, press and hold the bottom
of the control. Let go of the control when the lower
seatback reaches the desired level of support.
Memory Seat
The controls for the
memory function are
located on the driver’s
door trim panel.
These buttons are used to program and recall the
memory settings for the driver’s seat and both the
driver’s and the passenger’s outside mirrors and the
radio station presets. The seat, mirror positions and
radio station presets 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, 1 or 2, embossed on the back
of each keyless entry transmitter.

1-4
To set your memory seat, mirrors and radio station
presets, do the following:
1. Adjust the driver’s seat (including the recliner,
lumbar and side wing area), both outside mirrors and
the radio station presets to your preference. See
“Mirrors” and “Radio” in the Index to learn how to
adjust your mirrors and set the radio station presets.
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 number of the
memory control. The memory feature only works when
the transmission is in PARK (P).
To recall memory seat, mirror positions and radio station
presets, make sure your vehicle is in PARK (P), then
press the 1 or 2 button of the memory control. You will
hear a single chime ring to let you know the memory
position will be recalled
If you use the unlock button on the keyless entry
transmitter to enter the vehicle, the preset driver’s seat,
mirror positions and radio station presets will be
recalled if programmed in the Driver Information
Center (DIC). The numbers on the back of the
transmitters, 1 or 2, correspond to the numbers on
the memory control.
The preset driver’s seat, mirror positions and radio
station presets will also be recalled when inserting the
key into the ignition if programmed in the Driver
Information Center (DIC). See “Seat Position Recall”
in the Index for more information.
To stop movement of the memory seat feature at any
time, press one of the memory buttons or power
seat controls.

1-5
Easy Exit Seat
This feature makes entering or leaving the driver’s seat
easier.
(Exit): This button is used to program and recall
the desired driver’s seat exit/entry position. The seat
position can be personalized for driver 1 and driver 2.
To store the seat exit position for driver 1 or driver 2,
do the following:
1. Select the desired driver number by pressing the
1 or 2 button. The seat will move to the last stored
memory position.
2. Adjust the seat to the desired exit/entry position.
3. Press and hold the the exit button for three seconds.
A double chime will sound to let you know the exit
position has been stored for the identified driver
(driver 1 or 2).
To use the exit/entry feature, do one of the following:
D Press the exit button on the memory control.
D Or, if you have this feature enabled (active) in the
DIC, then removing the key from the ignition will
cause the seat to move to the exit/entry position.
See “Driver Information Center” in the Index.
Heated Front Seats (If Equipped)
The buttons for the driver’s
side heated seat are located
on the driver’s side door
panel. The buttons for the
passenger’s side heated
seat are located on the
passenger’s side door panel.
The engine must be running for this feature to operate.
To heat the entire seat, press the horizontal button with
the heated seat symbol. Press the button to cycle through
the temperature settings of high, medium and low and
to turn the seat off. The indicator lights will glow to
indicate the level of heat selected: three for high, two for
medium and one for low.
The low setting warms the seatback and seat cushion
until the seat temperature is near body temperature.
The medium and high heat the seatback and seat cushion
to a slightly higher temperature. You will be able to feel
heat in about two minutes.

1-6
To heat only the seatback, press the vertical button with
the heated seatback symbol. An indicator light on the
button will glow to designate that only the seatback is
being heated. Additional presses will cycle through the
heat levels for the seatback only. Press the horizontal
button again to heat the entire seat.
The heated front seats will shut off when the ignition is
turned to LOCK.
Your vehicle also has rear heated seats. See the section
“Rear Heated Seats” later in this section.
Reclining Front Seatbacks
The vertical power seat control described earlier allows
the seatback to recline.
But don’t have a seatback reclined if your vehicle
is moving.

1-7
CAUTION:
Sitting in a reclined position when your vehicle is
in motion can be dangerous. Even if you buckle
up, your safety belts can’t do their job when
you’re reclined like this.
The shoulder belt can’t do its job. In a crash, you
could go into it, receiving neck or other injuries.
The lap belt can’t do its job either. In a crash the
belt could go up over your abdomen. The belt
forces would be there, not at your pelvic bones.
This could cause serious internal injuries.
For proper protection when the vehicle is in
motion, have the seatback upright. Then sit well
back in the seat and wear your safety belt
properly.
Head Restraints
Adjust your head restraint so that the top of the restraint
is closest to the top of your head. This position reduces
the chance of a neck injury in a crash.

1-8
To raise or lower a head restraint, pull up on the head
restraint or push the head restraint down.
The head restraints tilt forward also. To tilt a head
restraint forward, grab the top of the restraint and pull it
toward you until you hear a click. Let go of the head
restraint and it will stay in that position. If you want the
head restraint to tilt forward more, pull it forward again
until you hear a click. You can pull it forward up to three
times and on the fourth pull it will release to the initial,
upright position.
Rear Seats
60/40 Split Bench Seat (Second Row)
The 60/40 split bench seat can be folded to give you
more cargo space.
Folding the Seatbacks
CAUTION:
If the seatback isn’t locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
press rearward on the seatback to be sure it
is locked.

1-9
To fold the rear seat, do the following:
1. Insert the two safety belt buckles into the pockets on
the driver’s side seatback and place the passenger’s
side seat belt through the loop located near the
armrest before folding the rear seat.
That way, the buckles will be out of the way when
the seat is folded and will be available for passengers
to use when the seat is returned to the passenger
position. Also, make sure that nothing is under or
in front of the seat.
2. Pull up on the strap loop
located at the rear of the
seat cushion and pull
the seat cushion up.
Then fold it forward.
3. Pull the seatback forward and fold it down until it
is flat.
The rear seatbacks are equipped with rearward folding
head restraints. When the seatback is being folded down,
the head restraint will automatically fold rearward.
If the seatback cannot fold flat because it interferes with
the cushion, try moving the front seat forward and/or
bringing the front seatback more upright.
Returning the Seats to an Upright Position
To return the seat to the upright position, do the
following:
1. Lift the seatback up and push it rearward all the way.
2. Lower the seat cushion until it latches into position.
3. Pull forward on the seatback and up on the seat
cushion to make sure the seat is securely in place.
4. Return the head restraints to the upright position.
5. Check to see that the safety belt buckles on the
driver’s side seatback are accessible to the outboard
and center occupants and are not under the seat
cushions.

1-10
Third Row Single Seat (If Equipped)
Folding the Seatback
CAUTION:
If the seatback isn’t locked, it could move forward
in a sudden stop or crash. That could cause injury
to the person sitting there. Always press rearward
on the seatback to be sure it is locked.
To fold the seatback, do the following:
Pull up on the release lever,
labeled 1, located on the
rear of the seatback and
push the seatback forward.
Unfolding the Seatback
1. To return the seat to the passenger position, pull up
on the release lever labeled 1 and then pull up on the
seatback until it locks into the upright position.
2. Push forward on the seatback to make sure it is
locked into position.

1-11
Tilting the Seat
CAUTION:
If the seatback isn’t locked, it could move forward
in a sudden stop or crash. That could cause injury
to the person sitting there. Always press rearward
on the seatback to be sure it is locked.
1. Fold the seatbacks forward using the instructions
listed previously.
2. Unlatch the seat from
the floor by pulling up
on the lever labeled 2,
located on the rear of
the seat.
3. Lift the rear of the seat up off of the floor and push it
forward until it locks into place. You will not be able
to unlatch the seat from the floor unless the seatback
is folded down.
The seat will now remain locked in the upright position.

1-12
Returning the Seat to an Upright Position
To return the seat to an upright position, do the
following:
1. Pull the lever labeled 3 toward you.
2. While still holding the lever 3 toward you, grasp the
top of the seat and pull it toward you slightly.
3. Let go of lever 3 and pull the seat completely down.
4. Push down on the seat firmly. Try pulling it up to be
sure it is locked into place.
5. Pull up on the release lever labeled 1 and then pull
up on the seatback until the seatback locks into the
upright position.
Removing the Third Row Seat
To remove the third row seat, do the following:
1. Open the liftgate.
2. Fold the seatback
forward onto the
seat cushion by using
the lever labeled 1.
The seat cannot be
removed unless the
seatback is folded.

1-13
3. To unlatch the rear of
the seat from the floor,
pull up on the release
lever labeled 2, located
at the rear of the seat,
and lift the rear of the
seat up off of the floor.
4. Squeeze the release handle while pulling the seat out.
5. While holding the rear of the seat up, roll the seat out
of the vehicle.

1-14
Replacing the Third Row Single Seat
CAUTION:
If the seatback isn’t locked, it could move forward
in a sudden stop or crash. That could cause injury
to the person sitting there. Always press rearward
on the seatback to be sure it is locked.
CAUTION:
A seat that isn’t locked into place properly can
move around in a collision or sudden stop. People
in the vehicle could be injured. Be sure to lock
the seat into place properly when installing it.
To replace the third row single seat, do the following:
1. Open the liftgate.
2. While holding the rear of the seat up, slide the front
wheels into the slots on the floor. The front latches
should lock into place. If latches do not lock, try
tilting the rear of the seat upwards.
3. Once the latches are engaged, let the seat drop into
place. Pull the lever labeled 1 and pull the seatback
up to return it to its upright position.
4. Push and pull on the seat to make sure it is locked
into place. The seatback cannot be raised to the
upright position unless the seat is secured to
the floor.