Hummer H2. Manual — part 2016
Inflation Pressure Conversion Chart (Kilopascals to PSI)
Tires with a higher than recommended pressure can cause the following conditions:
z
A hard ride
z
Tire bruising
z
Rapid tread wear at the center of the tire
Tires with a lower than recommended pressure can cause the following conditions:
z
A tire squeal on turns
z
Hard steering
z
Rapid wear and uneven wear on the edge of the tread
z
Tire rim bruises and tire rim rupture
z
Tire cord breakage
z
High tire temperatures
z
Reduced vehicle handling
z
High fuel consumption
z
Soft riding
Unequal pressure on the same axle can cause the following conditions:
z
Uneven braking
z
Steering lead
z
Reduced vehicle handling
MAINTENANCE ITEMS
kPa
psi
kPa
psi
140
20
215
31
145
21
220
32
155
22
230
33
160
23
235
34
165
24
240
35
170
25
250
36
180
26
275
40
185
27
310
45
190
28
345
50
200
29
380
55
205
30
415
60
Conversion: 6.9 kPa=1 psi
2004 Hummer H2
2004 GENERAL INFORMATION Maintenance and Lubrication - Hummer H2
Maintenance Items
MAINTENANCE
USING THE MAINTENANCE SCHEDULE
We at General Motors want to help you keep your vehicle in good working condition. But we do not know
exactly how you will drive it. You may drive very short distances only a few times a week. Or you may drive
long distances all the time in very hot, dusty weather. You may use your vehicle in making deliveries. Or you
may drive it to work, to do errands or in many other ways.
Because of all the different ways people use their vehicles, maintenance needs vary. You may need more
frequent checks and replacements. So please read the following and note how you drive. If you have any
questions on how to keep your vehicle in good condition, see your GM Goodwrench dealer.
This schedule is for vehicles that:
z
Carry passengers and cargo within recommended limits. You will find these limits on your vehicle's
Certification/Tire label. Refer to Label - Vehicle Certification (w/o RPO Z49) or Label - Vehicle
Certification (w/RPO Z49) .
z
Are driven off-road in the recommended manner.
z
Use the recommended fuel.
The services in Scheduled Maintenance should be performed when indicated. Refer to Additional Required
Services and Maintenance Footnotes for further information.
When you go to your GM Goodwrench dealer for your service needs, you'll know that GM-trained and
supported service technicians will perform the work using genuine GM parts.
Usage
Type/Part No.
Engine Oil Filter
AC Delco/PF44
Engine Air Cleaner/Filter
AC Delco/88944151
PCV Valve
AC Delco/CV948C
Spark Plugs
Denso/PTZ16R15
NGK/PZTR5A15
Fuel Filter
AC Delco/GF626
Wiper Blades (Front)
ITTA/15706394
Wiper Blade (Rear)
ITTA/15174476
CAUTION: Performing maintenance work on a vehicle can be dangerous. In trying to
do some jobs, you can be seriously injured. Do your own maintenance
work only if you have the required know-how and the proper tools and
equipment for the job. If you have any doubt, see your GM Goodwrench(R)
dealer to have a qualified technician do the work.
2004 Hummer H2
2004 GENERAL INFORMATION Maintenance and Lubrication - Hummer H2
Owner Checks and Services tells you what should be checked, when to check it and what you can easily do to
help keep your vehicle in good condition.
The proper replacement parts, fluids and lubricants to use are listed in Fluid and Lubricant
Recommendations and Maintenance Items . When your vehicle is serviced, make sure these are used. All
parts should be replaced and all necessary repairs done before you or anyone else drives the vehicle. We
recommend the use of genuine GM parts.
SCHEDULED MAINTENANCE
Scheduled Maintenance
When the CHANGE ENGINE OIL light comes on, it means that service is required for your vehicle. Have your
vehicle serviced as soon as possible within the next 600 miles (1,000 km). It is possible that, if you are driving
under the best conditions, the engine oil life system may not indicate that vehicle service is necessary for over a
year. However, your engine oil and filter must be changed at least once a year and at this time the system must
be reset. Your GM Goodwrench dealer has GM-trained service technicians who will perform this work using
genuine GM parts and reset the system.
If the engine oil life system is ever reset accidentally, you must service your vehicle within 3,000 miles (5,000
km) since your last service. Remember to reset the oil life system whenever the oil is changed. Refer to GM Oil
Life System - Resetting for information on the engine Oil Life System and resetting the system.
When the CHANGE ENGINE OIL light appears, certain services, checks and inspections are required.
Required services are described in the following for "Maintenance I" and "Maintenance II." Generally, it is
recommended that your first service be Maintenance I, your second service be Maintenance II and that you
alternate Maintenance I and Maintenance II thereafter. However, in some cases, Maintenance II may be
required more often.
Maintenance I -Use Maintenance I if the CHANGE ENGINE OIL light comes on within ten months since
vehicle was purchased or Maintenance II was performed.
Maintenance II -Use Maintenance II if the previous service performed was Maintenance I. Always use
Maintenance II whenever 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
Maintenance
I
Maintenance
II
Change engine oil and filter. Reset oil life system. Refer to GM Oil Life
System - Resetting . An Emission Control Service.
X
X
Lubricate chassis components. Refer to footnote #.
X
X
Visually check for any leaks or damage. Refer to footnote (j).
X
X
Inspect engine air cleaner filter. If necessary, replace filter. Refer to Air
Cleaner Element Replacement . An Emission Control Service. Refer to
footnote.
X
X
2004 Hummer H2
2004 GENERAL INFORMATION Maintenance and Lubrication - Hummer H2
ADDITIONAL REQUIRED SERVICES
The following services should be performed at the first maintenance service (I or II) after the indicated miles
(kilometers) shown for each item.
Additional Required Services
Rotate tires and check inflation pressures and wear. Refer to Tire
Rotation .
X
X
Inspect brake system. Refer to footnote (a).
X
X
Check engine coolant and windshield washer fluid levels and add fluid as
needed.
X
X
Perform any needed additional services. Refer to Additional Required
Services .
X
X
Inspect suspension and steering components. Refer to footnote (b).
or
X
Inspect engine cooling system. Refer to footnote (c).
or
X
Inspect wiper blades. Refer to footnote (d).
or
X
Inspect restraint system components. Refer to footnote (e).
or
X
Lubricate body components. Refer to footnote (f).
or
X
Check transmission fluid level and add fluid as needed.
or
X
Service
25,000
miles
(41,500
km)
50,000
miles
(83,000
km)
75,000
miles
(125,000
km)
100,000
miles
(166,000
km)
125,000
miles
(207,500
km)
150,000
miles
(240,000
km)
Inspect fuel system for damage
or leaks.
X
X
X
X
X
X
Inspect exhaust system for
loose or damaged components.
X
X
X
X
X
X
Change automatic transmission
fluid and filter (severe service).
Refer to footnote (h).
or
X
or
X
or
X
Change automatic transmission
fluid and filter (normal
service).
or
or
or
X
or
or
Change transfer case fluid.
Refer to footnote (g).
or
X
or
X
or
X
Replace engine air cleaner
filter. Refer to Air Cleaner
Element Replacement . An
Emission Control Service.
or
or
or
X
or
or
Replace spark plugs and
inspect spark plug wires. An
Emission Control Service.
or
or
or
X
or
or
Inspect positive crankcase
2004 Hummer H2
2004 GENERAL INFORMATION Maintenance and Lubrication - Hummer H2
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