2008 HUMMER H3 service indicator

Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines might be available in
your area. We recommend that you use these gasolines,
if they comply with the specications described earlier.
However, E85 (85% ethanol) and other fuels containing
more than 10% ethanol must not be used in vehicles that
were not designed for those fuels.
Notice:Your vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in the fuel
system and also damage plastic and rubber parts.
That damage would not be covered under your
warranty.
Some gasolines that are not reformulated for low
emissions can contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. We recommend against
the use of such gasolines. Fuels containing MMT can
reduce the life of spark plugs and the performance of
the emission control system could be affected. The
malfunction indicator lamp might turn on. If this occurs,
return to your dealer/retailer for service.Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel might be hard
to nd. Never use leaded gasoline or any other fuel
not recommended in the previous text on fuel. Costly
repairs caused by use of improper fuel would not
be covered by your warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you will be driving.
5-7

Brake Wear
Your vehicle has disc brakes. Disc brake pads have
built-in wear indicators that make a high-pitched warning
sound when the brake pads are worn and new pads
are needed. The sound can come and go or be heard all
the time your vehicle is moving, except when you are
pushing on the brake pedal rmly.
{CAUTION:
The brake wear warning sound means that
soon the brakes will not work well. That could
lead to an accident. When you hear the brake
wear warning sound, have your vehicle
serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.
Some driving conditions or climates can cause a brake
squeal when the brakes are rst applied or lightly
applied. This does not mean something is wrong with
the brakes.Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to torque specications in
Capacities and Specifications on page 5-107.
Brake linings should always be replaced as complete
axle sets.
Brake Pedal Travel
See your dealer/retailer if the brake pedal does not
return to normal height, or if there is a rapid increase in
pedal travel. This could be a sign that brake service
might be required.
Brake Adjustment
Every time you make a brake stop, the disc brakes
adjust for wear.
5-40

Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-ination has
not reached the level to trigger illumination of the
TPMS low tire pressure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is not
operating properly. The TPMS malfunction indicator
is combined with the low tire pressure telltale. When
the system detects a malfunction, the telltale will ash
for approximately one minute and then remain
continuously illuminated. This sequence will continue
upon subsequent vehicle start-ups as long as the
malfunction exists.
When the malfunction indicator is illuminated, the
system may not be able to detect or signal low tire
pressure as intended. TPMS malfunctions may occur
for a variety of reasons, including the installation
of replacement or alternate tires or wheels on the vehicle
that prevent the TPMS from functioning properly.
Always check the TPMS malfunction telltale after
replacing one or more tires or wheels on your vehicle to
ensure that the replacement or alternate tires and
wheels allow the TPMS to continue to function properly.
SeeTire Pressure Monitor Operation on page 5-65,
for additional information.Federal Communications
Commission (FCC) and Industry and
Science Canada
The Tire Pressure Monitor System (TPMS) operates on
a radio frequency and complies with Part 15 of the
FCC Rules. Operation is subject to the following
two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
The Tire Pressure Monitor System (TPMS) operates on
a radio frequency and complies with RSS-210 of
Industry and Science Canada. Operation is subject to
the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.
5-64

A
Accessories and Modications............................ 5-3
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-68
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-101
Air Cleaner/Filter, Engine.................................5-20
Air Conditioning..............................................3-22
Airbag
Passenger Status Indicator...........................3-30
Readiness Light..........................................3-29
Airbag System................................................1-54
What Will You See After an Airbag Inates?....1-61
When Should an Airbag Inate?....................1-59
Where Are the Airbags?...............................1-57
Airbag Systems
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-68
How Does an Airbag Restrain?......................1-60
Passenger Sensing System...........................1-62
Servicing Your Airbag-Equipped Vehicle..........1-67
What Makes an Airbag Inate?......................1-60
Antenna, Fixed Mast.......................................3-62
Antenna, XM™ Satellite Radio Antenna System . . . 3-62
Antilock Brake System (ABS)............................. 4-4
Antilock Brake, System Warning Light................3-34Appearance Care
Aluminum or Chrome-Plated Wheels..............5-97
Care of Safety Belts....................................5-94
Chemical Paint Spotting...............................5-99
Cleaning Exterior Lamps/Lenses....................5-95
Fabric/Carpet..............................................5-93
Finish Care.................................................5-96
Finish Damage............................................5-98
Instrument Panel, Vinyl, and
Other Plastic Surfaces..............................5-94
Interior Cleaning..........................................5-91
Leather......................................................5-93
Sheet Metal Damage...................................5-98
Tires..........................................................5-98
Underbody Maintenance...............................
5-98
Vehicle Care/Appearance Materials................5-99
Washing Your Vehicle...................................5-95
Weatherstrips..............................................5-94
Windshield, Backglass, and Wiper Blades.......5-97
Appointments, Scheduling Service....................... 7-9
Ashtray.........................................................3-22
Assist Steps...................................................4-31
Audio System.................................................3-48
Fixed Mast Antenna.....................................3-62
Navigation/Radio System,
see Navigation Manual..............................3-61
Radio Reception..........................................3-61
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M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-16
Maintenance Replacement Parts....................6-14
Maintenance Requirements............................. 6-2
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-2
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-36
Manual Seats................................................... 1-2
Manual Transmission
Fluid..........................................................5-24
Operation...................................................2-26Manual, Using.................................................... iii
Message
DIC Warnings and Messages........................3-43
Mirrors
Automatic Dimming Rearview with
Compass and Temperature Display.............2-41
Automatic Dimming Rearview with OnStar
®,
Compass and Temperature Display.............2-38
Outside Convex Mirror.................................2-44
Outside Power Mirrors..................................2-43
MyGMLink.com................................................ 7-4
N
Navigation System, Privacy..............................7-18
Navigation/Radio System,
see Navigation Manual.................................3-61
New Vehicle Break-In......................................2-18
8

O
Odometer......................................................3-27
Odometer, Trip...............................................3-27
Off-Road Driving.............................................4-12
Off-Road Lamps.............................................3-18
Off-Road Recovery..........................................4-10
Oil
Engine.......................................................5-15
Pressure Light.............................................3-38
Oil, Engine Oil Life System..............................5-18
Older Children, Restraints................................1-30
Online Owner Center........................................ 7-4
OnStar, Privacy..............................................7-18
OnStar
®System, see OnStar®Manual...............2-48
Operation, Universal Home Remote System........2-52
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-24
Outlets
Accessory Power.........................................3-21
Outside
Convex Mirror.............................................2-44
Power Mirrors.............................................2-43
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Paint, Damage...............................................5-98
Park Aid........................................................2-44
Park Brake....................................................2-32
Park (P)
Shifting Into................................................2-33
Shifting Out of............................................2-35
Parking
Over Things That Burn.................................2-36
Parking Your Vehicle.......................................2-35
Passenger Airbag Status Indicator.....................3-30
Passenger Sensing System..............................1-62
Passing.........................................................4-10
PASS-Key
®III+..............................................2-16
PASS-Key®III+ Operation................................2-16
Passlock®......................................................2-15
Perchlorate Materials Requirements, California...... 5-4
Power
Door Locks.................................................. 2-8
Electrical System.......................................5-102
Lumbar Controls........................................... 1-3
Retained Accessory (RAP)............................2-20
Seat............................................................ 1-3
Steering Fluid.............................................5-36
Windows....................................................2-12
9