engine oil HUMMER H2 2004 Owner's Guide

When the CHANGE ENGINE OIL light appears, certain
services, checks and inspections are required.
Required services are described in the following for
“MaintenanceI” and “MaintenanceII.” Generally,
it is recommended that your rst service be
MaintenanceI, your second service be MaintenanceII
and that you alternate MaintenanceIand MaintenanceII
thereafter. However, in some cases, MaintenanceII
may be required more often.MaintenanceI— Use MaintenanceIif the CHANGE
ENGINE OIL light comes on within ten months since
vehicle was purchased or MaintenanceIIwas
performed.
MaintenanceII— Use MaintenanceIIif the previous
service performed was MaintenanceI. Always use
MaintenanceIIwhenever the light comes on ten months
or more since the last service or if the light has not
come on at all for one year.
Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. Reset oil life system. SeeEngine Oil on
page 5-14.An Emission Control Service.••
Lubricate chassis components.See footnote #.••
Visually check for any leaks or damage.See footnote (j).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 5-19.An Emission Control Service. See footnote †.••
Rotate tires and check ination pressures and wear. SeeTires on page 5-60.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid as
needed.••
Perform any needed additional services. See “Additional Required Services” in
this section.••
6-5

(g)Add uid as needed. (A uid loss could indicate a
problem; repair as needed.) Check vent hose at transfer
case for kinks and proper installation.
(h)Change automatic transmission uid and lter if the
vehicle is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery
service.
(i)Drain, ush and rell cooling system. See Engine
Coolant on page 5-24for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and ller neck.
Pressure test the cooling system and pressure cap.
(j)A uid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the uid level checked. Add uid if needed.Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure the safety,
dependability and emission control performance of your
vehicle. Your GM Goodwrench dealer can assist you
with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-14for further
details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
6-9

Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
To check the parking brake’s holding ability: With
the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.
To check the PARK (P) mechanism’s holding ability:
With the engine running, shift to PARK (P). Then
release the parking brake followed by the regular
brake.
Contact your GM Goodwrench dealer if service is
required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name, part
number or specication may be obtained from your GM
Goodwrench dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on
page 5-14.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
®Coolant. SeeEngine
Coolant on page 5-24.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
Washer SolventGM Optikleen
®Washer Solvent.
Power Steering
SystemGM Power Steering Fluid (GM Part
No. U.S. 89021184, in Canada
89021186).
6-12

Normal Maintenance Replacement Parts
Replacement parts identied below by name, part number or specication can be obtained from your dealer.
Part ACDelco®Part No. GM Part No.
Engine Oil Filter PF44 25010633
Engine Air Cleaner/Filter — 88944151
Spark Plugs 41–985 12571164
Fuel Filter GF626 25121792
Windsheield Wiper Blades
17.0 inches (43.0 cm)— 15706394
Rear Wiper Blades 11.0 inches (28.0 cm) — 15174476
6-14

Care of (cont.)
Your CD Player...........................................3-92
Your CDs ...................................................3-92
Cargo Area Door Lock Switch............................ 2-8
Cargo Tie Downs............................................2-49
Cassette Tape Messages.................................3-71
CD Adapter Kits.............................................3-71
CD Messages........................................3-74, 3-86
Center Console Storage Area...........................2-46
Center High-Mounted Stoplamp (CHMSL)...........5-57
Center Instrument Panel Fuse Block................5-105
Center Overhead Console................................2-46
Center Roof Marker Lamps..............................5-56
Chains, Tire...................................................5-75
CHANGE ENGINE OIL....................................3-56
Charging System Light....................................3-32
Check Engine Light.........................................3-38
CHECK OIL LEVEL.........................................3-56
CHECK WASHER FLUID.................................3-59
Checking Brake Fluid......................................5-39
Checking Coolant............................................5-26
Checking Engine Oil........................................5-14
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-73
Chemical Paint Spotting...................................5-99
Child Restraints
Child Restraint Systems...............................1-44
Infants and Young Children...........................1-40
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-50Child Restraints (cont.)
Older Children.............................................1-38
Securing a Child Restraint Designed for the
LATCH System........................................1-52
Securing a Child Restraint in a Rear Seat
Position..................................................1-53
Securing a Child Restraint in the Right Front
Seat Position...........................................1-55
Top Strap...................................................1-48
Top Strap Anchor Location............................1-49
Where to Put the Restraint...........................1-47
Chime Level Adjustment..................................3-92
Cigarette Lighter.............................................3-18
Cleaning
Inside of Your Vehicle..................................5-93
Outside of Your Vehicle................................5-95
Underbody Maintenance...............................5-99
Weatherstrips..............................................5-95
Cleaning Aluminum or Chrome-Plated Wheels.....5-98
Cleaning Exterior Lamps/Lenses.......................5-96
Cleaning Fabric/Carpet....................................5-93
Cleaning Glass Surfaces..................................5-94
Cleaning Interior Plastic Components.................5-94
Cleaning Leather............................................5-93
Cleaning the Mirror.........................................2-37
Cleaning the Speaker Covers...........................5-94
Cleaning the Top of the Instrument Panel...........5-94
Cleaning the Video Screen...............................3-92
3

Driver
Position, Safety Belt.....................................1-22
DRIVER DOOR AJAR.....................................3-60
Driver Information Center (DIC).........................3-44
DIC Operation and Displays..........................3-44
DIC Warnings and Messages........................3-56
Driving
At Night.....................................................4-41
City...........................................................4-46
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Freeway.....................................................4-47
Hill and Mountain Roads..............................4-50
In Rain and on Wet Roads...........................4-43
Off-Road....................................................4-17
Winter........................................................4-52
Driving Across an Incline..................................4-36
Driving Downhill..............................................4-35
Driving in Mud, Sand, Snow or Ice....................4-39
Driving in Water..............................................4-40
Driving On Grades..........................................4-83
Driving on Off-Road Hills.................................4-31
Driving on Snow or Ice....................................4-52
Driving Through Deep Standing Water...............4-45
Driving Through Flowing Water.........................4-45
Driving Uphill..................................................4-32
Driving with a Trailer.......................................4-81E
Easy Exit Seat...............................................2-53
Electrical System
Add-On Equipment.....................................5-101
Fuses and Circuit Breakers.........................5-102
Power Windows and Other Power Options....5-102
Windshield Wiper Fuses.............................5-102
Electronically Controlled Air Suspension System....4-74
Emissions Inspection and Maintenance
Programs...................................................3-40
Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-42
Check and Service Engine Soon Light............3-38
Coolant......................................................5-24
Coolant Heater............................................2-21
Coolant Temperature Gage...........................3-35
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-33
Fan Noise..................................................5-35
Oil .............................................................5-14
Overheating................................................5-27
Starting......................................................2-20
ENGINE COOLANT HOT.................................3-57
Engine Oil Additives........................................5-17
5

ENGINE OVERHEATED..................................3-57
Entering or Exiting the Third Row Seats.............. 1-7
Entry/Exit Lighting...........................................3-17
Environmental Concerns..................................4-23
Erasing HomeLink
®Buttons..............................2-45
Event Data Records (EDR)................................ 7-9
Extender, Safety Belt.......................................1-37
Exterior Lamps...............................................3-13
F
Filter
Engine Air Cleaner......................................5-19
Finding a Program Type (PTY) Station.......3-66, 3-78
Finding a Station....................................3-64, 3-75
Finish Care....................................................5-96
Finish Damage...............................................5-99
First Aid Kit and Tool Kit..................................4-59
Fixed Mast Antenna........................................3-92
Flash-to-Pass................................................... 3-7
Flat Tire........................................................5-78
Flat Tire, Changing.........................................5-79
Fluid
Automatic Transmission................................5-21
Power Steering...........................................5-36
Windshield Washer......................................5-37
FM ...............................................................3-90
Folding the Seatback.......................................1-10
Folding the Seatbacks....................................... 1-8Following Distance..........................................4-82
Front Axle......................................................5-51
Front Receiver................................................4-60
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-43
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-43
Fuel Information Button....................................3-47
FUEL LEVEL LOW.........................................3-58
Fuses
Fuses and Circuit Breakers.........................5-102
Windshield Wiper.......................................5-102
G
Gage
Engine Coolant Temperature.........................3-35
Fuel..........................................................3-43
Oil Pressure...............................................3-41
Speedometer..............................................3-28
Tachometer.................................................3-28
Transmission Temperature.............................3-36
Voltmeter Gage...........................................3-32
6

Off-Road Recovery..........................................4-14
Oil
Engine.......................................................5-14
Pressure Gage............................................3-41
OIL LIFE RESET............................................3-56
OIL PRESSURE LOW.....................................3-56
Older Children, Restraints................................1-38
Online Owner Center........................................ 7-3
OnStar
®Personal Calling.................................2-41
OnStar®Services............................................2-40
OnStar®Steering Wheel Controls......................2-41
OnStar®System.............................................2-40
Other Warning Devices...................................... 3-5
Outlet Adjustment............................................3-25
Outside
Automatic Dimming Mirror with Curb View
Assist.....................................................2-39
Convex Mirror.............................................2-38
Heated Mirrors............................................2-39
Power Mirrors.............................................2-37
Overheated Engine Protection Operating Mode . . . 5-28
Overload and Overheat Protection.....................4-74
Overseas – Customer Assistance........................ 7-4
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
Owner’s Information........................................7-11
P
Park (P)
Shifting Into................................................2-30
Shifting Out of............................................2-32
Parking
Brake........................................................2-29
Over Things That Burn.................................2-32
Parking on Hills..............................................4-83
PASSENGER DOOR AJAR..............................3-61
Passing.................................................4-14, 4-82
Passlock
®......................................................2-18
Personalization Button.....................................3-48
Personalization, Climate Controls......................3-25
Plan Ahead When Possible................................ 7-7
Playing a Cassette Tape..................................3-69
Playing a CD.........................................3-72, 3-80
Playing a Specic Loaded CD..........................3-82
Playing the Radio...................................3-63, 3-74
Power
Accessory Outlets........................................3-18
Door Locks.................................................. 2-8
Electrical System.......................................5-102
Lumbar Controls........................................... 1-3
Seat............................................................ 1-2
Steering Fluid.............................................5-36
Windows....................................................2-15
10

TRANSMISSION HOT.....................................3-59
Transmission Operation, Automatic....................2-22
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-11
Transportation Options...................................... 7-7
Traveling to Remote Areas...............................4-23
Trip Information Button....................................3-45
Turn and Lane Change Signals.......................... 3-6
TURN SIGNAL ON.........................................3-58
Turn Signal/Multifunction Lever........................... 3-6
Turn Signals When Towing a Trailer..................4-82
U
Underhood Fuse Block...................................5-106
Understanding Radio Reception........................3-90
Unfolding the Seatback....................................1-10
Uniform Tire Quality Grading............................5-72
United States – Customer Assistance.................. 7-4
Used Replacement Wheels..............................5-75
Using HomeLink
®...........................................2-44
Using Song List Mode.....................................3-84
Using the Recovery Loops...............................4-57
V
Vehicle
Control........................................................ 4-6
Damage Warnings........................................... ivVehicle (cont.)
Loading......................................................4-67
Symbols......................................................... iv
Vehicle Data Collection and Event Data Records..... 7-9
Vehicle Identication
Number (VIN)............................................5-101
Service Parts Identication Label..................5-101
Vehicle Personalization
Memory Seat..............................................2-51
Vehicle Storage..............................................5-42
Ventilation Adjustment......................................3-25
Visors...........................................................2-16
Voltmeter Gage..............................................3-32
W
Warning Lights, Gages and Indicators................3-26
Warnings
DIC Warnings and Messages........................3-56
Hazard Warning Flashers............................... 3-4
Other Warning Devices.................................. 3-5
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle......................................5-95
Weight of the Trailer........................................4-78
Weight of the Trailer Tongue.............................4-79
What Kind of Engine Oil to Use........................5-15
What to Do with Used Oil................................5-18
15

Wheels
Alignment and Tire Balance..........................5-73
Replacement...............................................5-74
When to Add Engine Oil..................................5-15
When to Change Engine Oil (GM Oil Life
System).....................................................5-17
When to Check Lubricant.................................5-50
When to Check Power Steering Fluid................5-36
When You Are Ready to Leave After Parking on
a Hill.........................................................4-84
Where to Put the Restraint...............................1-47
Why Safety Belts Work....................................1-18
Windows.......................................................2-14Power........................................................2-15
Windshield Washer........................................... 3-8
Fluid..........................................................5-37
Windshield Wiper
Blade Replacement......................................5-59
Fuses......................................................5-102
Windshield Wipers............................................ 3-8
Winter Driving................................................4-52
Y
Your Vehicle and the Environment....................... 6-2
16