Hummer 2008 H2 User manual

Seats and Restraint Systems ........................... 1-1
Front Seats ............................................... 1-2
Rear Seats ............................................... 1-8
Safety Belts ............................................. 1-16
Child Restraints ....................................... 1-36
Airbag System ......................................... 1-64
Restraint System Check ............................ 1-76
Features and Controls ..................................... 2-1
Keys ........................................................ 2-3
Doors and Locks ...................................... 2-10
Windows ................................................. 2-19
Theft-Deterrent Systems ............................ 2-24
Starting and Operating Your Vehicle ........... 2-28
Mirrors .................................................... 2-45
Object Detection Systems .......................... 2-50
OnStar
®
System ...................................... 2-53
Universal Home Remote System ................ 2-57
Storage Areas ......................................... 2-64
Sunroof .................................................. 2-67
Instrument Panel ............................................. 3-1
Instrument Panel Overview .......................... 3-4
Climate Controls ...................................... 3-22
Warning Lights, Gages, and Indicators ........ 3-31
Driver Information Center (DIC) .................. 3-49
Audio System(s) ....................................... 3-72
Driving Your Vehicle ....................................... 4-1
Your Driving, the Road, and Your Vehicle ..... 4-2
Towing ................................................... 4-51
Service and Appearance Care .......................... 5-1
Service ..................................................... 5-3
Fuel ......................................................... 5-5
Checking Things Under the Hood ................. 5-9
Rear Axle ............................................... 5-45
Four-Wheel Drive ..................................... 5-46
Front Axle ............................................... 5-47
Bulb Replacement .................................... 5-48
Windshield Wiper Blade Replacement ......... 5-54
Tires ...................................................... 5-55
Appearance Care ................................... 5-100
Vehicle Identification ............................... 5-109
Electrical System .................................... 5-110
Capacities and Specifications ................... 5-117
Maintenance Schedule ..................................... 6-1
Maintenance Schedule ................................ 6-2
Customer Assistance Information .................... 7-1
Customer Assistance and Information ........... 7-2
Reporting Safety Defects ........................... 7-14
Vehicle Data Recording and Privacy ........... 7-16
Index ................................................................ 1
2008 HUMMER H2 Owner Manual M

GENERAL MOTORS, GM, the GM Emblem, HUMMER,
the name HUMMER, H2 and the H2 Design are
registered trademarks 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.
This manual describes features that may be available in
this model, but your vehicle may not have all of them.
For example, more than one entertainment system may
be offered or your vehicle may have been ordered
without a front passenger or rear seats.
Keep this manual in the vehicle for quick reference.
Canadian Owners
A French language copy of this manual can be obtained
from your dealer/retailer or from:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
1-800-551-4123
www.helminc.com
Propriétaires Canadiens
On peut obtenir un exemplaire de ce guide en français
auprès de concessionnaire ou à l’adresse suivante:
Helm Incorporated
P.O. Box 07130
Detroit, MI 48207
1-800-551-4123
www.helminc.com
Litho in U.S.A.
Part No. 15862631 A First Printing
©
2007 General Motors Corporation. All Rights Reserved.
ii

Using this Manual
Many people read the owner manual from beginning to
end when they first receive their new vehicle to learn
about the vehicle’s features and controls. Pictures
and words work together to explain things.
Index
A good place to quickly locate information about the
vehicle is the Index in the back of the manual. It is
an alphabetical list of what is in the manual and
the page number where it can be found.
Safety Warnings and Symbols
There are a number of safety cautions in this book.
A box with the word CAUTION is used to tell about
things that could hurt you or others if you were to
ignore the warning.
{CAUTION:
These mean there is something that could hurt
you or other people.
We tell you what the hazard is and what to do to help
avoid or reduce the hazard. Please read these cautions.
If you do not, you or others could be hurt.
A circle with a slash
through it is a safety
symbol which means
“Do Not,” “Do Not do
this” or “Do Not let this
happen.”
iii

Vehicle Damage Warnings
You will also find notices in this manual.
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.
The notice tells 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 which 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 specific component, control, message,
gage, or indicator.
iv

Front Seats ......................................................1-2
Power Seats ..................................................1-2
Power Lumbar ...............................................1-3
Heated Seats .................................................1-4
Memory Seat and Mirrors ................................1-4
Power Reclining Seatbacks ..............................1-5
Head Restraints .............................................1-7
Rear Seats .......................................................1-8
Heated Seats .................................................1-8
Split Folding Rear Seat ...................................1-8
Third Row Seat ............................................1-10
Safety Belts ...................................................1-16
Safety Belts: They Are for Everyone ................1-16
How to Wear Safety Belts Properly .................1-22
Lap-Shoulder Belt .........................................1-30
Safety Belt Use During Pregnancy ..................1-35
Safety Belt Extender .....................................1-35
Child Restraints .............................................1-36
Older Children ..............................................1-36
Infants and Young Children ............................1-39
Child Restraint Systems .................................1-43
Where to Put the Restraint .............................1-46
Lower Anchors and Tethers for
Children (LATCH) ......................................1-47
Securing a Child Restraint in a
Rear Seat Position ....................................1-57
Securing a Child Restraint in the
Right Front Seat Position ............................1-60
Airbag System ...............................................1-64
Where Are the Airbags? ................................1-66
When Should an Airbag Inflate? .....................1-69
What Makes an Airbag Inflate? .......................1-70
How Does an Airbag Restrain? .......................1-70
What Will You See After an Airbag Inflates? .....1-70
Airbag Off Switch ..........................................1-72
Servicing Your Airbag-Equipped Vehicle ...........1-75
Adding Equipment to Your
Airbag-Equipped Vehicle .............................1-75
Restraint System Check ..................................1-76
Checking the Restraint Systems ......................1-76
Replacing Restraint System Parts
After a Crash ............................................1-77
Section 1 Seats and Restraint Systems
1-1

Front Seats
Power Seats
On a vehicle with power seats, the controls used to
operate them are located on the outboard side of the
seats. To adjust the seat, do any of the following:
•Move the seat forward or rearward by sliding the
control forward or rearward.
•Raise or lower the front part of the seat cushion by
moving the front of the control up or down.
•Raise or lower the rear part of the seat cushion by
moving the rear of the control up or down.
•Raise or lower the entire seat by moving the entire
control up or down.
On seats with power reclining seatbacks, the control is
located behind the power seat control on the outboard
side of the seats. See “Power Reclining Seatbacks”
under Power Reclining Seatbacks on page 1-5.
A vehicle with a memory function allows seat settings to
be saved and recalled. See Memory Seat and Mirrors
on page 1-4 for more information.
Driver’s Seat with Power Seat Control, Power
Recline, and Power Lumbar shown
1-2

Power Lumbar If the seats have power lumbar, the controls used to
operate this feature are located on the outboard side of
the seats.
•To increase lumbar support, press and hold the
front of the control.
•To decrease lumbar support, press and hold the
rear of the control.
•To raise the height of the lumbar support, press
and hold the top of the control.
•To lower the height of the lumbar support, press
and hold the bottom of the control.
Release the control when the lower seatback reaches
the desired level of lumbar support.
Your vehicle may have a memory function which allows
seat settings to be saved and recalled. See Memory
Seat and Mirrors on page 1-4 for more information.
Keep in mind that as your seating position changes,
as it may during long trips, so should the position of your
lumbar support. Adjust the seat as needed.
1-3

Heated Seats
On vehicles with heated front seats, the controls are
located on the driver’s and passenger’s doors.
I(Heated Seatback): Press to turn on the heated
seatback.
J(Heated Seat and Seatback): Press to turn on the
heated seat and seatback.
The light on the button will come on to indicate that the
feature is working. Press the button to cycle through
the temperature settings of high, medium, and low and
to turn the heat to the seat off. Indicator lights will
show the level of heat selected: three for high, two for
medium, and one for low.
The heated seats will be canceled ten seconds after the
ignition is turned off. To use the heated seat feature
after restarting your vehicle, press the heated seat
or seatback button again.
Memory Seat and Mirrors
If your vehicle has this feature, the controls for the
memory function are located on the driver’s door.
1: Saves the seating position for driver 1.
2: Saves the seating position for driver 2.
S:Programs and recalls the easy exit position.
These buttons are used to program and recall memory
settings for the driver’s seat and both the driver’s
and passenger’s outside mirrors. The settings for these
features can be saved for up to two drivers.
To store the memory settings:
1. While the vehicle is in PARK (P), adjust the driver’s
seat, including the seatback recliner, lumbar, and
side wing area, and both outside mirrors to a
comfortable position.
2. Press and hold button 1 until a double chime sounds
to let you know that the position has been stored.
A second seating and mirror position can be programmed
by repeating the above steps and pressing button 2.
To recall the memory positions, the vehicle must be in
PARK (P). Press and release either button 1 or button 2
corresponding to the desired driving position. A single
chime will sound and the memory position will be
recalled.
1-4

To stop recall movement of the memory seat feature at
any time, press one of the memory buttons or power
seat controls.
Easy Exit Seat
To store the seat exit position:
1. Press and release the button 1. The seat will move
to the stored memory position.
2. Adjust the seat to the desired exit position.
3. Press and hold the exit button until a double chime
sounds to let you know that the position has been
stored.
A second seat exit position can be programmed by
repeating the above steps and pressing button 2.
B(Easy Exit Seat): To use the seat exit position:
•Press the exit button on the memory control.
•If this feature is activated in the DIC, removing the
key from the ignition will move the seat to the exit
position.
See “Easy Exit Seat” under DIC Vehicle Customization
(With DIC Buttons) on page 3-63 for more information
on activating this feature in the DIC.
Power Reclining Seatbacks
The front seats have power reclining seatbacks.
The control used to operate the seatbacks are located
on the outboard side of the seats.
•To recline the seatback, press the control toward
the rear of the vehicle.
•To raise the seatback, press the control toward the
front of the vehicle.
1-5

{CAUTION:
Sitting in a reclined position when your vehicle
is in motion can be dangerous. Even if you
buckle up, your safety belts cannot do their
job when you are reclined like this.
CAUTION: (Continued)
CAUTION: (Continued)
The shoulder belt cannot do its job. In a crash,
you could go into it, receiving neck or other
injuries.
The lap belt cannot 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.
Do not have a seatback reclined if your vehicle is moving.
1-6

Head Restraints
Adjust the head restraint so that the top of the restraint
is at the same height as the top of the occupant’s
head. This position reduces the chance of a neck injury
in a crash.
Pull the head restraint up
to raise it. To lower the
head restraint, press
the release button,
located on the top of
the seatback, while
you push the head
restraint down.
The second and third row seats have head rests that
can be adjusted up and down.
1-7

Rear Seats
Heated Seats On vehicles with rear
outboard heated seats,
the buttons used to control
this feature are located
on the Rear Seat
Audio (RSA) panel.
M(Heated Seat): To heat the seat cushion, press the
button with the heated seat symbol.
A heated seat symbol will be shown in the RSA display
to indicate that the feature is on. Press the button to
cycle through the temperature settings of high, medium,
and low, and to turn it off. Indicator bars next to the
symbol will designate the level of heat selected: three for
high, two for medium, and one for low.
The heated seats are off when the ignition is off.
Split Folding Rear Seat
The split bench seats can be folded to give you more
cargo space.
Driver’s Side RSA
Heated Seat Button
shown
1-8

Folding the Seatbacks
The seatbacks are equipped with rearward folding head
rests (SUV only). When the seatback is being folded
down, the head rest will automatically fold rearward.
To fold the rear seat, do the following:
1. 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 and
fold it forward.
Notice: Folding a rear seat with the safety belts
still fastened may cause damage to the seat or the
safety belts. Always unbuckle the safety belts
and return them to their normal stowed position
before folding a rear seat.
3. Pull the seatback forward and fold it down until it
is flat.
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.
4. Repeat the steps for the other half of the split
bench seat.
{CAUTION:
Using the third row seating position while the
second row is folded, or folded and tumbled,
could cause injury in a sudden stop or crash.
Be sure to return the seat to the passenger
seating position. Push and pull on the seat to
make sure it is locked into place.
1-9

Returning the Seats to an Upright
Position
{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
push and pull on the seatback to be sure it is
locked.
{CAUTION:
A safety belt that is improperly routed, not
properly attached, or twisted will not provide
the protection needed in a crash. The person
wearing the belt could be seriously injured.
After raising the rear seatback, always check
to be sure that the safety belts are properly
routed and attached, and are not twisted.
To return the seat(s) 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 rest (SUV only) to the upright
position.
Third Row Seat
Entering or Exiting the Third Row Seat
If your vehicle has a third row seat, it is intended
for 2 passengers and has only 2 designated seating
positions.
You must fold the second row seat down before
entering or exiting the third row. See “Folding the
Seatbacks” under Split Folding Rear Seat on page 1-8
earlier in this section for instructions.
The third row seatback can be folded and the entire
seat can be tilted or removed from the vehicle.
1-10

Folding the Seatback
To fold the seatback, do the following:
Notice: Folding a rear seat with the safety belts
still fastened may cause damage to the seat or the
safety belts. Always unbuckle the safety belts
and return them to their normal stowed position
before folding a rear seat.
1. Pull up on the release
lever labeled 1, located
on the rear of the
seatback, and push the
seatback forward.
Unfolding the Seatback
{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
push and pull on the seatback to be sure it is
locked.
To return the seatback to the passenger position, do the
following: 1. Pull up on the release
lever labeled 1 and
then pull up on
the seatback until the
seatback locks into
the upright position.
2. Push forward on the seatback to make sure it is
locked into position.
1-11

Tilting the Seat
1. Fold the seatback 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 from 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.
Returning the Seat from a Tilted to an
Upright Position
{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
push and pull on the seatback to be sure it is
locked.
1-12

To return the seatback to an upright position, do the
following:
1. Pull the lever labeled 3 toward you.
2. While still holding 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.
1-13

Removing the Seat
To remove the seat, do the following:
1. Open the liftgate.
Notice: Folding a rear seat with the safety belts
still fastened may cause damage to the seat or the
safety belts. Always unbuckle the safety belts
and return them to their normal stowed position
before folding a rear seat.
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.
3. To unlatch the rear of
the seat from the floor,
pull up on the release
lever labeled 2, at
the rear of the seat,
and lift the rear of
the seat up from
the floor.
4. Squeeze the release handle while pulling the seat
out of the slots on the floor.
5. While holding the rear of the seat up, roll the seat
out of the vehicle.
1-14

Installing the Seat
{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
push and pull on the seatback to be sure it is
locked.
{CAUTION:
A seat that is not 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.
{CAUTION:
A safety belt that is improperly routed, not
properly attached, or twisted will not provide
the protection needed in a crash. The person
wearing the belt could be seriously injured.
After raising the rear seatback, always check
to be sure that the safety belts are properly
routed and attached, and are not twisted.
To install the seat, do the following:
1. 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 the latches do not lock,
try tilting the rear of the seat upward.
1-15

2. Once the latches are engaged, pull up on the lever
labeled 3 to allow the seat to drop into place.
3. Pull up on the lever labeled 1 to return the seatback
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.
Safety Belts
Safety Belts: They Are for Everyone
This part of the manual tells you how to use safety
belts properly. It also tells you some things you should
not do with safety belts.
{CAUTION:
Do not let anyone ride where he or she cannot
wear a safety belt properly. If you are in a
crash and you are not wearing a safety belt,
your injuries can be much worse. You can hit
things inside the vehicle harder or be ejected
from it and be seriously injured or killed. In the
same crash, you might not be, if you are
buckled up. Always fasten your safety belt,
and check that your passenger(s) are
restrained properly too.
1-16