2004 HUMMER H2 open hood

Bulb Replacement
SeeReplacement Bulbs on page 5-58for the proper
type of bulbs to use.
For any bulb changing procedure not listed in this
section, contact your dealer.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas inside and
can burst if you drop or scratch the bulb. You or
others could be injured. Be sure to read and
follow the instructions on the bulb package.
Headlamps
1. Open the hood as described earlier underHood
Release on page 5-10and locate the affected
headlamp on the inner front portion of the hood.2. Turn the bulb/socket
retainer (arrow)
counterclockwise to
unlock the bulb/socket.
You may prefer to
unplug the electrical
connector before
removing the bulb/
socket. If so, complete
Step 4 before doing
this step.
3. Pull the bulb/socket
straight out from the
headlamp housing.
5-52

4. Unplug the electrical
connector.
5. Push the new bulb/socket into the headlamp
assembly making sure to align the splines on
the bulb/socket with the splines in the headlamp
housing. Use care not to touch the bulb with
your ngers or hands.
6. Turn the bulb/socket retainer clockwise to lock the
bulb/socket in place.
7. Plug in the electrical connector.Front Turn Signal and Parking
Lamps
1. Open the hood as described earlier underHood
Release on page 5-10and locate the affected lamp.
2. Turn the bulb socket
counterclockwise and
remove it from the lamp
housing.
3. Pull the bulb from the bulb socket.
4. Put the new bulb into the bulb socket.
5. Put the bulb socket into the lamp housing and turn
it clockwise until it locks.
5-53

Maintenance Footnotes
†The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
#Lubricate the front suspension, ball joints, steering
linkage, transmission shift linkage and parking
brake cable guides. Ball joints should not be lubricated
unless their temperature is 10°F (-12°C) or higher,
or they could be damaged.
(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chang, etc. Inspect
disc brake pads for wear and rotors for surface
condition. Inspect other brake parts, including calipers,
parking brake, etc.
(b)Visually inspect front and rear suspension and
steering system for damaged, loose or missing parts,
signs of wear or lack of lubrication. Inspect power
steering lines and hoses for proper hook-up, binding,
leaks, cracks, chang, etc. Visually check constant
velocity joints, rubber boots and axle seals for leaks.(c)Visually inspect hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
ttings and clamps; replace with genuine GM parts as
needed. To help ensure proper operation, a pressure test
of the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or cracking.
Replace blade inserts that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken air bag
coverings, and have them repaired or replaced. (The air
bag system does not need regular maintenance.)
(f)Lubricate all key lock cylinders, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl,
rear compartment hinges, outer liftgate handle pivot
points, rear door detent link, roller mechanism, liftgate
handle pivot points, latch bolt, fuel door hinge, cargo
door hinge, locks and folding seat hardware. More
frequent lubrication may be required when exposed to a
corrosive environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better and not stick or squeak.
6-8

Garage Door Opener.......................................2-42
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Gate Operator and Canadian Programming........2-44
Getting Familiar with Off-Road Driving................4-28
Glove Box.....................................................2-45
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hazard Warning Flashers................................... 3-4
Head Restraints............................................... 1-6
Headlamp High/Low-Beam Changer.................... 3-7
Headlamps....................................................5-52
Bulb Replacement.......................................5-52
Daytime Running Lamps...............................5-54
Front Turn Signal and Parking Lamps.............5-53
Halogen Bulbs............................................5-52
Roof Marker Lamps.....................................5-55
Sidemarker Lamps.......................................5-54
Heated Seats................................................... 1-4
Heating.........................................................3-24
High Mobility Characteristics.............................4-24
Highway Hypnosis...........................................4-49
Hill and Mountain Roads..................................4-50
Hitches..........................................................4-80HomeLink
®Transmitter....................................2-42
HomeLink®Transmitter, Programming................2-42
Hood
Checking Things Under................................5-10
Release.....................................................5-10
Horn............................................................... 3-5
How to Add Coolant to the Coolant Surge Tank......5-32
How to Add Fluid............................................5-23
How to Check Lubricant...................................5-50
How to Check Power Steering Fluid..................5-36
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-21
Hydroplaning..................................................4-45
I
If No Steam Is Coming From Your Engine..........5-29
If Steam Is Coming From Your Engine...............5-28
If the Light is Flashing.....................................3-39
If the Light Is On Steady.................................3-39
If You Are Caught in a Blizzard.........................4-54
If You Are Stuck in Sand, Mud, Ice or Snow.......4-56
If You Do Decide To Pull A Trailer.....................4-76
Ignition Positions.............................................2-19
Illuminated Visor Vanity Mirrors.........................2-16
Infants and Young Children, Restraints...............1-40
Ination - Tire Pressure...................................5-68
7