spare wheel HUMMER H2 2004 Owners Manual

Off-Road Driving
This off-road guide is meant to provide advice for when
you drive your vehicle off paved roads. Also, see
Braking on page 4-6.
Off-road driving can be great fun. But it does have
some denite hazards. The greatest of these is
the terrain itself.
“Off-roading” means you have left the great North
American road system behind. Traffic lanes are not
marked. Curves are not banked. There are no
road signs. Surfaces can be slippery, rough, uphill or
downhill. In short, you have gone right back to nature.
Off-road driving involves some new skills. And that
is why it is very important that you read this guide. You
will nd many driving tips and suggestions. These
will help make your off-road driving safer and more
enjoyable.
Before You Go Off-Roading
There are some things to do before you go out. For
example, be sure to have all necessary maintenance
and service work done. Check to make sure all
underbody shields are properly attached. Make sure any
equipment you may need (rst aid kit, cell phone,
ashlight, etc.) is securely stored in the vehicle. Be sure
you read all the information about your four-wheel-drive
vehicle in this manual. Is there enough fuel? Is the
spare tire fully inated? Are the uid levels up where
they should be? What are the local laws that apply
to off-roading where you will be driving? If you do not
know, you should check with law enforcement people in
the area. Will you be on someone’s private land? If
so, be sure to get the necessary permission.
4-17

Tires..............................................................5-60
Ination - Tire Pressure.................................5-68
Tire Inspection and Rotation...........................5-69
When It Is Time for New Tires.......................5-70
Buying New Tires.........................................5-71
Uniform Tire Quality Grading..........................5-72
Wheel Alignment and Tire Balance..................5-73
Wheel Replacement......................................5-74
Tire Chains..................................................5-75
Accessory Inator.........................................5-76
If a Tire Goes Flat........................................5-78
Changing a Flat Tire.....................................5-79
Spare Tire...................................................5-92
Appearance Care............................................5-92
Cleaning the Inside of Your Vehicle.................5-93
Care of Safety Belts......................................5-95
Weatherstrips...............................................5-95Cleaning the Outside of Your Vehicle..............5-95
Sheet Metal Damage.....................................5-98
Finish Damage.............................................5-99
Underbody Maintenance................................5-99
Chemical Paint Spotting.................................5-99
Vehicle Care/Appearance Materials................5-100
Vehicle Identication.....................................5-101
Vehicle Identication Number (VIN)................5-101
Service Parts Identication Label...................5-101
Electrical System..........................................5-101
Add-On Electrical Equipment.........................5-101
Windshield Wiper Fuses...............................5-102
Power Windows and Other Power Options......5-102
Fuses and Circuit Breakers..........................5-102
Capacities and Specications........................5-111
Section 5 Service and Appearance Care
5-2

When to Check
Check your tires once a month or more.
Also, check the tire pressure of the spare tire.
How to Check
Use a good quality pocket-type gage to check tire
pressure. You can’t tell if your tires are properly inated
simply by looking at them. Radial tires may look
properly inated even when they’re underinated.
Remove the valve cap from the tire valve stem. Press
the tire gage rmly onto the valve to get a pressure
measurement. If the cold tire ination pressure is low,
add air until you reach the recommended amount.
If you overll the tire, release air by pushing on the metal
stem in the center of the tire valve. Recheck the tire
pressure with the tire gage.
Be sure to put the valve caps back on the valve stems.
They help prevent leaks by keeping out dirt and
moisture.
Tire Inspection and Rotation
Tires should be rotated every 5,000 to 8,000 miles
(8 000 to 13 000 km).
Any time you notice unusual wear, rotate your tires as
soon as possible and check wheel alignment. Also
check for damaged tires or wheels. SeeWhen It Is Time
for New Tires on page 5-70andWheel Replacement
on page 5-74for more information.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The rst rotation
is the most important. SeeScheduled Maintenance
on page 6-4, for scheduled rotation intervals.
When rotating your tires, always use the correct rotation
pattern shown here.
5-69

{CAUTION:
If you use bias-ply tires on your vehicle, the
wheel rim anges could develop cracks after
many miles of driving. A tire and/or wheel
could fail suddenly, causing a crash. Use only
radial-ply tires with the wheels on your vehicle.
Uniform Tire Quality Grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires by
treadwear, traction and temperature performance.
(This applies only to vehicles sold in the United States.)
The grades are molded on the sidewalls of most
passenger car tires. The Uniform Tire Quality Grading
system does not apply to deep tread, winter-typesnow tires, space-saver or temporary use spare tires,
tires with nominal rim diameters of 10 to 12 inches
(25 to 30 cm), or to some limited-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.
Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specied government test course.
For example, a tire graded 150 would wear one and
a half (1.5) times as well on the government course as
a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
5-72

The following steps will tell you how to use the jack and
change a tire.
Removing the Spare Tire and Tools
The equipment you’ll need is behind and to the side of
the driver’s side second row seat. To remove the
equipment, do the following:
1. Fold the driver’s side second row seat down. See
60/40 Split Bench Seat on page 1-8.
2. Turn the wingnut (A),
which holds the jack,
counterclockwise
to release the jack.
3. Turn the wingnut (B), which holds the jack tool kit,
counterclockwise to release it.Open the tool bag and you will nd the following tools
which you will use to remove the spare tire and at tire:
A. Jack Handle Extension (Used for Rear Flats Only)
B. Jack Handle
C. Wheel Wrench
D. Ratchet
E. Spanner Wrench
F. Locking Pin (If Equipped) Not used for tire changing
procedure. See “Power Winch Platform” underIf You
Are Stuck: In Sand, Mud, Ice or Snow on page 4-56.
5-80

The spare tire and wheel blocks are stored in the rear
cargo area. Remove the tire cover to get to them.
A. Spare or Flat Tire
B. Receiver Extension (If Equipped) Not used for tire
changing procedure. See “Receiver Extension” under
If You Are Stuck: In Sand, Mud, Ice or Snow on
page 4-56.
C. Tire Retainer Plate
D. Nut
E. Wheel BlocksFollow the instructions to remove the wheel blocks and
spare tire:
1. Remove the wheel blocks from the tire retainer
plate by turning the wingnut counterclockwise.
2. Place the at end of the wheel wrench through the
hole in the spanner wrench.
5-81

3. Place the end of the
spanner wrench on the
nut and then turn
the wheel wrench
counterclockwise to
loosen the nut holding
the tire to the
carrier.
4. Pull off the tire retainer plate and set it aside.
Remove the spare tire from the wheel carrier.
5. Put the spare tire near the at tire.
Use the art and text following to nish changing a
at tire.The tools you’ll be using include the jack (A), the wheel
blocks (B), the wheel wrench (C), jack handle
extension (D), the jack handle (E) and the ratchet (F).
Before proceeding, be sure to set the wheel
blocks (B) on the appropriate tire as shown previously.
5-82

Removing the Flat Tire and Installing
the Spare Tire
1. To remove the center
cap, place the at end
of the wheel wrench
in the slot on the wheel
and gently pry the
center cap out.
2. Slide the ratchet onto the wheel wrench with the
DOWN mark facing you.
3. Turn the ratchet counterclockwise to loosen the
wheel nuts. Don’t remove them yet.
You will now need to jack the vehicle up using the
instructions following.
4. Assemble the jack and tools as follows:
Front Flat Tire:Attach the jack handle (E) with the
hook end connected to the u-hook/clevis on the
jack (A). Slide the ratchet (F) onto the jack handle (E)
with the UP mark facing you.
5-83

{CAUTION:
Raising your vehicle with the jack improperly
positioned can damage the vehicle and even
make the vehicle fall. To help avoid personal
injury and vehicle damage, be sure to t the
jack lift head into the proper location before
raising the vehicle.
6. Turn the ratchet clockwise to raise the vehicle.
Raise the vehicle far enough off the ground so
there is enough room for the spare tire to clear the
ground.7. Remove all the wheel
nuts and take off the
at tire.
5-86

8. Remove any rust or dirt
from the wheel bolts,
mounting surfaces
and spare wheel.
{CAUTION:
Rust or dirt on the wheel, or on the parts to
which it is fastened, can make the wheel nuts
become loose after a time. The wheel could
come off and cause an accident. When you
change a wheel, remove any rust or dirt from
the places where the wheel attaches to the
vehicle. In an emergency, you can use a cloth
or a paper towel to do this; but be sure to use
a scraper or wire brush later, if you need to, to
get all the rust or dirt off.
{CAUTION:
Never use oil or grease on studs or nuts. If
you do, the nuts might come loose. Your wheel
could fall off, causing a serious accident.
5-87