key HUMMER H2 2004 Workshop Manual

Power Steering Fluid
When to Check Power Steering Fluid
It is not necessary to regularly check power steering uid
unless you suspect there is a leak in the system or
you hear an unusual noise. A uid loss in this system
could indicate a problem. Have the system inspected
and repaired. SeeEngine Compartment Overview
on page 5-12for reservoir location.
How to Check Power Steering Fluid
Turn the key off, let the engine compartment cool down,
Locate the cap with this
symbol. SeeEngine
Compartment Overview on
page 5-12for more
information on location.
Wipe the cap and the top of the reservoir clean, then
unscrew the cap and wipe the dipstick with a clean rag.
Replace the cap and completely tighten it. Then
remove the cap again and look at the uid level on the
dipstick.
The level should be at the FULL COLD mark. If
necessary, add only enough uid to bring the level up to
the mark.
5-36

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

Automatic Transmission Shift Lock
Control System Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle. It should be parked on a level
surface.
2. Firmly apply the parking brake. SeeParking Brake
on page 2-29if necessary.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the key to the RUN
position, but do not start the engine. Without
applying the regular brake, try to move the shift
lever out of PARK (P) with normal effort. If the shift
lever moves out of PARK (P), contact your GM
Goodwrench dealer for service.
Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to LOCK in each shift lever position.
The key should turn to LOCK only when the
shift lever is in PARK (P).
The key should come out only in LOCK.
Contact your GM Goodwrench dealer if service is
required.
Parking Brake and Automatic
Transmission Park (P) Mechanism Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in
case it begins to roll. Be ready to apply the
regular brake at once should the vehicle begin
to move.
6-11

Usage Fluid/Lubricant
Automatic
TransmissionDEXRON®-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Chassis
LubricationChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242) or lubricant meeting
requirements of NLGI #2, Category
LB or GC-LB.
Front and Rear
AxleSAE 75W-90 Synthetic Axle
Lubricant (GM Part No. U.S.
12378261, in Canada 10953455)
meeting GM Specication 9986115.
Transfer CaseDEXRON
®-III Automatic
Transmission Fluid.
Usage Fluid/Lubricant
Front Axle
Propshaft
SplineSpline Lubricant, Special Lubricant
(GM Part No. U.S. 12345879, in
Canada 10953511) or lubricant
meeting requirements of GM
9985830.
Hood HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Outer Tailgate
Handle Pivot
PointsMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Weatherstrip
ConditioningDielectric Silicone Grease (GM Part
No. U.S. 12345579, in Canada
992887).
Weatherstrip
SqueaksSynthetic Grease with Teon,
Superlube (GM Part No. U.S.
12371287, in Canada 10953437).
6-13

GM Mobility Program for Persons
with Disabilities
This program, available to
qualied applicants, can
reimburse you up to
$1,000 toward eligible
aftermarket driver or
passenger adaptive
equipment you may require
for your vehicle (hand
controls, wheelchair/
scooter lifts, etc.).
This program can also provide you with free resource
information, such as area driver assessment centers and
mobility equipment installers. The offer is available for
a limited period of time from the date of vehicle
purchase/lease. For more details, or to determine your
vehicle’s eligibility, see your GM dealer or call the
GM Mobility Assistance Center at 1-800-323-9935. Text
telephone (TTY) users, call 1-800-833-9935.
GM of Canada also has a Mobility Program. Call
1-800-GM-DRIVE (463-7483) for details. All TTY users
call 1-800-263-3830.
Roadside Assistance Program
Security While You Travel
1-866-HUMMER6 (486-6376)
As the proud owner of a new HUMMER vehicle, you are
automatically enrolled in the HUMMER Roadside
Assistance program. This value-added service is
intended to provide you with peace of mind as you drive
in the city or travel the open road. HUMMER’s
Roadside Assistance toll-free number is staffed by
courteous and capable Roadside Assistance
Representatives who are available 24 hours a day,
365 days a year.
We will provide the following services during the
Bumper-to-Bumper warranty period, at no expense
to you:
Fuel Delivery:Delivery of enough fuel
($5 maximum) for the customer to get to the
nearest service station.
Lock-out Service (identication required):
Replacement keys or locksmith service will
be covered at no charge if you are unable to gain
entry into your vehicle. Delivery of the replacement
key will be covered within 10 miles.
7-5

Instrument Panel
Cluster.......................................................3-27
Overview..................................................... 3-2
Instrument Panel Brightness.............................3-16
Instrument Panel Fuse Block..........................5-103
Interior Lamps................................................3-16
J
Jump Starting.................................................5-43
K
KEYFOB X BATTERY LOW.............................3-61
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Lamps
Exterior......................................................3-13
Interior.......................................................3-16
Lamps On Reminder.......................................3-14
Lap-Shoulder Belt...........................................1-22
LATCH System
Child Restraints...........................................1-50
Securing a Child Restraint Designed for the
LATCH System........................................1-52Leaving Your Vehicle With the Engine Running . . . 2-31
LEFT REAR DOOR AJAR................................3-61
Liftgate..........................................................2-13
Light
Air Bag Off .................................................3-30
Air Bag Readiness.......................................3-28
Anti-Lock Brake System Warning...................3-34
Brake System Warning.................................3-33
Charging System.........................................3-32
Cruise Control.............................................3-42
Low Fuel Warning.......................................3-43
Malfunction Indicator....................................3-38
Safety Belt Reminder...................................3-28
Security.....................................................3-42
Tow/Haul Mode...........................................3-42
Traction Off................................................3-35
Loading Your Vehicle.......................................4-67
Loading Your Vehicle for Off-Road Driving..........4-22
Locking Rear Axle...........................................4-11
Lockout Protection..........................................2-12
Locks
Delayed Locking........................................... 2-9
Door........................................................... 2-7
Lockout Protection.......................................2-12
Power Door.................................................. 2-8
Programmable Automatic Door Locks............... 2-9
Rear Door Security Locks.............................2-11
Loss of Control...............................................4-16
LOW COOLANT LEVEL..................................3-57
8

Power Steering...............................................4-12
Power Winch Platform (If Equipped)..................4-62
Programmable Automatic Door Locks.................. 2-9
Programming the HomeLink
®Transmitter...........2-42
Q
Questions and Answers About Safety Belts.........1-21
R
Radio Data System (RDS).......................3-66, 3-77
Radio Messages.............................................3-69
Radios..........................................................3-62
Care of Your Cassette Tape Player................3-90
Care of Your CD Player...............................3-92
Care of Your CDs........................................3-92
Navigation/Radio System..............................3-86
Radio with Cassette and CD.........................3-63
Radio with Six-Disc CD................................3-74
Rear Seat Audio..........................................3-87
Setting the Time..........................................3-62
Theft-Deterrent............................................3-88
Understanding Reception..............................3-90
RDS Messages......................................3-68, 3-79Reading Lamps..............................................3-17
REAR ACCESS OPEN....................................3-61
Rear Axle......................................................5-50
Locking......................................................4-11
Rear Door Security Locks................................2-11
Rear Heated Seats........................................... 1-8
Rear Safety Belt Comfort Guides......................1-34
Rear Seat Armrest..........................................2-49
Rear Seat Audio Controls.................................3-87
Rear Seat Audio (RSA)....................................3-87
Rear Seat Operation......................................... 1-7
Rear Seat Passengers, Safety Belts..................1-30
Rear Window Defogger....................................3-24
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-34
Reclining Seatbacks.......................................... 1-5
Recommended Fluids and Lubricants.................6-12
Recreational Vehicle Towing.............................4-65
REDUCED ENGINE POWER...........................3-57
Remote Keyless Entry System............................ 2-3
Remote Keyless Entry System, Operation............ 2-4
Removing the Flat Tire and Installing the
Spare Tire..................................................5-83
Removing the Seat.........................................1-13
Removing the Spare Tire and Tools...................5-80
REPLACE LIFTGATE FUSE.............................3-61
11