tire pressure HUMMER H3 2009 Owners Manual

Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
g:Audio Steering Wheel Controls
or OnStar®
$:Brake System Warning Light
":Charging System
I:Cruise Control
B:Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.:Fuel Gage
+:Fuses
i:Headlamp High/Low-Beam
Changer
j:LATCH System Child Restraints
*:Malfunction Indicator Lamp
::Oil Pressure
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
F:Traction Control
M:Windshield Washer Fluid
iv Preface

Instrument Panel
Instrument Panel
Overview
Instrument Panel
Overview...........................3-4
Hazard Warning Flashers. . .3-5
Horn...................................3-5
Tilt Wheel...........................3-6
Turn Signal/Multifunction
Lever................................3-6
Turn and Lane-Change
Signals.............................3-6
Headlamp High/
Low-Beam Changer..........3-7
Flash-to-Pass......................3-7
Windshield Wipers..............3-7
Windshield Washer.............3-8
Rear Window Wiper/
Washer.............................3-8
Cruise Control....................3-9
Exterior Lamps..................3-11
Headlamps on Reminder. . .3-13
Daytime Running
Lamps (DRL)..................3-13
Automatic Headlamp
System............................3-14
Off-Road Lamps................3-14
Fog Lamps.......................3-15
Instrument Panel
Brightness.......................3-15
Dome Lamp......................3-16
Dome Lamp Override........3-16
Exit Lighting......................3-16
Reading Lamps.................3-16
Electric Power
Management...................3-17
Battery Run-Down
Protection........................3-17
Accessory Power
Outlet(s)..........................3-18
Ashtray(s) and Cigarette
Lighter.............................3-18
Climate Controls
Climate Control System. . . .3-19
Outlet Adjustment.............3-21
Warning Lights, Gages,
and Indicators
Warning Lights, Gages,
and Indicators.................3-22
Instrument Panel Cluster. . .3-23
Speedometer and
Odometer........................3-24
Trip Odometer..................3-24
Tachometer.......................3-24
Safety Belt Reminders......3-24
Airbag Readiness Light.....3-25
Passenger Airbag Status
Indicator..........................3-26
Charging System Light......3-27
Up-Shift Light....................3-27
Brake System Warning
Light................................3-27
Antilock Brake System
(ABS) Warning Light.......3-28
StabiliTrak®/Traction
Control System (TCS)
Warning Light
..................3-29
Engine Coolant
Temperature Gage..........3-29
Tire Pressure Light...........3-30
Malfunction
Indicator Lamp................3-30
Instrument Panel 3-1

Tire Pressure Light
The tire pressure light should come
on briey as the engine is started.
If it does not, have the vehicle
service by your dealer/retailer. It
provides information about tire
pressures and the Tire Pressure
Monitoring System.
When the Light is On Steady
This indicates that one or more of
the tires are signicantly
underinated.
A tire pressure message in the
Driver Information Center (DIC),
may accompany the light. SeeDIC
Warnings and Messages on
page 3-37for more information.
Stop and check the tires as soon as
it is safe to do so. If underinated,
inate to the proper pressure.
SeeTires on page 5-44for more
information.When the Light Flashes First and
Then is On Steady
This indicates that there may be a
problem with the Tire Pressure
Monitor System. The light ashes
for about a minute and stays
on steady for the remainder of the
ignition cycle. This sequence
will repeat with every ignition cycle.
SeeTire Pressure Monitor System
on page 5-52for more information.
Malfunction
Indicator Lamp
Check Engine Light
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors operation of
the fuel, ignition, and emission
control systems. It ensures
that emissions are at acceptable
levels for the life of the vehicle,
helping to produce a cleaner
environment.This light comes on when the
ignition is on, but the engine is not
running, as a check to show it
is working. If it does not, have the
vehicle serviced by your
dealer/retailer.
If the check engine light comes on
and stays on, while the engine
is running, this indicates that there
is an OBD II problem and service
is required.
Malfunctions often are indicated by
the system before any problem
is apparent. Being aware of the light
can prevent more serious damage
to the vehicle. This system
assists the service technician in
correctly diagnosing any
malfunction.
Notice:If the vehicle is
continually driven with this light
on, after a while, the emission
controls might not work as well,
3-30 Instrument Panel

CHANGE OIL
This message displays when the oil
needs to be changed. Check the
oil in the vehicle as soon as possible
and have the vehicle serviced by
your dealer/retailer. SeeEngine Oil
on page 5-13andScheduled
Maintenance on page 6-4for more
information. Press and release
the reset stem to acknowledge the
message and clear it from the
display.
DOORS
This message displays when one or
more of the doors is ajar. Check
all the doors on the vehicle to make
sure they are closed. The message
clears from the display after all
of the doors are closed.
ENG (Engine) HOT
This message displays when the
engine coolant temperature is
hot. Check the engine coolant
temperature gage. SeeEngine
Coolant Temperature Gage
on page 3-29. Have the vehicleserviced by your dealer/retailer as
soon as possible if you suspect
the engine is overheating. See
Engine Overheating on page 5-27
for more information.
FLUID
This message displays if the brake
uid is low. Check the brake
uid as soon as possible and have
the vehicle serviced by your
dealer/retailer. SeeBrakes on
page 5-30for more information.
Press and release the reset stem to
acknowledge the message and
clear it from the display.
FUEL CAP
This message displays if the
vehicle’s fuel cap is either off or
loose. Pull over as soon as possible
and check to see if the fuel cap is
secure. You may also see the check
engine light on the instrument
panel cluster. If the check engine
light does come on when the
fuel cap was loose, it may take a
few driving trips before the lightturns off. SeeMalfunction Indicator
Lamp on page 3-30for more
information if the light still remains
on. Press and release the reset
stem to acknowledge the message
and clear it from the display.
HSA (Hill Start Assist) ON
This message displays when the Hill
Start Assist is enabled. See
Braking on page 4-3for more
information.
LOW FUEL
This message displays if the level of
fuel in the vehicle is low. Also
check the fuel gage. SeeFuel Gage
on page 3-33for more information.
Rell the fuel tank as soon as
possible.
LOW TIRE
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays if a low tire
pressure is detected in any of the
vehicle’s tires. Press and release the
reset stem to acknowledge the
3-38 Instrument Panel

message and clear it from the
display. The message appears at
each ignition cycle until the tires are
inated to the correct ination
pressure. SeeTires on page 5-44
andInflation - Tire Pressure on
page 5-51for more information on
tires and the correct ination
pressures.
OIL
This message displays when the oil
pressure is low. SeeOil Pressure
Light on page 3-32andEngine
Oil on page 5-13for more
information.
PARK BRK (Brake)
This message displays when the
parking brake is set. SeeParking
Brake on page 2-28andBrake
System Warning Light on page 3-27
for more information. The message
clears from the display after the
parking brake is released or by
pressing and releasing the
reset stem.
REDUCED POWER
This message displays when the
vehicle’s engine power is reduced.
Reduced engine power can
affect the vehicle’s ability to
accelerate. If this message is on,
but there is no reduction in
performance, proceed to your
destination. The performance may
be reduced the next time the vehicle
is driven. The vehicle may be
driven at a reduced speed while this
message is on, but acceleration
and speed may be reduced. Anytime
this message stays on, the vehicle
should be taken to your
dealer/retailer for service as soon as
possible. Press and release the
reset stem to acknowledge
the message and clear it from the
display.
SERV (Service) 4WD
(Four-Wheel Drive)
This message displays when there
is a problem with the transfer
case control system. Check the
transfer case on the vehicleand have it serviced by your
dealer/retailer. SeeFull-Time
Four-Wheel Drive on page 2-24for
more information about the
transfer case. Press and release the
reset stem to acknowledge the
message and clear it from the
display.
SERV (Service) TPM
(Tire Pressure Monitor)
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays if a part on the
TPMS is not working properly.
The tire pressure light also ashes
and then remains on during the
same ignition cycle. SeeTire
Pressure Light on page 3-30.
Several conditions may cause this
message to appear. SeeTire
Pressure Monitor Operation on
page 5-54for more information. If
the warning comes on and stays on,
there may be a problem with the
TPMS. See your dealer/retailer.
Instrument Panel 3-39

For mounds, washouts, loose
up-hill slopes, ditches, etc.
When wheel spin occurs as the
vehicle is moving, the driver may
notice a slight shaking or shuddering
of the vehicle. This should be
stopped as soon as possible to
prevent damage to vehicle
components. This is the indication
that a loss of traction is occurring on
this terrain. The operator should:
1. Reduce speed and apply
the brakes.
2. Assess the terrain properly and
adjust vehicle speed and gear
ranges accordingly: Four-Wheel
High position for higher speeds
and Four-Wheel-Low Lock
for more torque and lower
speeds. Transmission 1 (First)
gear is generally recommended.3. Apply slight pressure to the
brake when the shaking or
shuddering sensation is felt,
keeping the vehicle moving in a
controlled manner.
4. Be prepared to alternate between
braking and accelerating through
the adverse terrain.
Getting Familiar with Off-Road
Driving
It is a good idea to practice in an
area that is safe and close to home
before you go into the wilderness.
Off-roading requires some new
and different skills.
Tune your senses to different
kinds of signals. Your eyes need
to constantly sweep the terrain
for unexpected obstacles. Your ears
need to listen for unusual tire or
engine sounds. Use your arms,
hands, feet, and body to respond to
vibrations and vehicle bounce.Controlling the vehicle is the key to
successful off-road driving. One of
the best ways to control the
vehicle is to control the speed.
At higher speeds:
You approach things faster and
have less time to react.
There is less time to scan the
terrain for obstacles.
The vehicle has more bounce
when driving over obstacles.
More braking distance is needed,
especially on an unpaved surface.
{CAUTION
When you are driving off-road,
bouncing and quick changes in
direction can easily throw you
out of position. This could cause
you to lose control and crash.
So, whether you are driving
on or off the road, you and
your passengers should wear
safety belts.
4-18 Driving Your Vehicle

Before Leaving on a
Long Trip
To prepare your vehicle for a long
trip, consider having it serviced
by your dealer/retailer before
departing.
Things to check on your own
include:
Windshield Washer Fluid:
Reservoir full? Windows
clean — inside and outside?
Wiper Blades:In good shape?
Fuel, Engine Oil, Other Fluids:All
levels checked?
Lamps:Do they all work and are
lenses clean?
Tires:Are treads good? Are tires
inated to recommended
pressure?
Weather and Maps:Safe to
travel? Have up-to-date maps?
Highway Hypnosis
Always be alert and pay attention
to your surroundings while driving. If
you become tired or sleepy, nd
a safe place to park your vehicle
and rest.
Other driving tips include:
Keep the vehicle well ventilated.
Keep interior temperature cool.
Keep your eyes moving — scan
the road ahead and to the sides.
Check the rearview mirror and
vehicle instruments often.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on at or rolling terrain. Tips for
driving in these conditions include:
Keep the vehicle serviced
and in good shape.
Check all uid levels and brakes,
tires, cooling system, and
transmission.
Going down steep or long hills,
shift to a lower gear.
{CAUTION
If you do not shift down, the
brakes could get so hot that they
would not work well. You would
then have poor braking or even
none going down a hill. You could
crash. Shift down to let the engine
assist the brakes on a steep
downhill slope.
4-30 Driving Your Vehicle

The Tire and Loading
Information label shows the
number of occupant seating
positions (A), and the maximum
vehicle capacity weight (B) in
kilograms and pounds.
The Tire and Loading Information
label also shows the size of the
vehicle’s original equipment
tires (C) and the recommended
cold tire ination pressures (D).
For more information on tires and
ination seeTires on page 5-44
andInflation - Tire Pressure on
page 5-51.
There is also important
information on the
Certication/Tire label. It tells
Gross Vehicle Weight Rating
(GVWR) and the Gross
Axle Weight Rating (GAWR)
for the front and rear axles. See
“Certication/Tire Label” later
in this section.Steps for Determining Correct
Load Limit
1.
Locate the statement “The
combined weight of occupants
and cargo should never
exceed XXX kg or XXX lbs” on
your vehicle’s placard.
2.Determine the combined
weight of the driver and
passengers that will be riding
in your vehicle.
3.Subtract the combined weight
of the driver and passengers
from XXX kg or XXX lbs.
4.The resulting gure equals the
available amount of cargo and
luggage load capacity. For
example, if the “XXX” amount
equals 1400 lbs and there will
be ve 150 lb passengers in
your vehicle, the amount
of available cargo and
luggage load capacity is
650 lbs (1400−750
(5 x 150) = 650 lbs).
5.Determine the combined
weight of luggage and
cargo being loaded on the
vehicle. That weight may not
safely exceed the available
cargo and luggage load
capacity calculated in Step 4.
6.If your vehicle will be towing a
trailer, the load from your
trailer will be transferred to
your vehicle. Consult
this manual to determine how
this reduces the available
cargo and luggage load
capacity of your vehicle.
SeeTowing a Trailer
on page 4-42for important
information on towing a
trailer, towing safety, and
trailering tips.
4-36 Driving Your Vehicle

Windshield Wiper Blade
Replacement
Windshield Wiper Blade
Replacement...................5-44
Tires
Tires.................................5-44
Tire Sidewall Labeling.......5-45
Tire Terminology and
Denitions.......................5-48
Ination - Tire Pressure. . . .5-51
Tire Pressure Monitor
System............................5-52
Tire Pressure Monitor
Operation........................5-54
Tire Inspection and
Rotation..........................5-57
When It Is Time for
New Tires.......................5-58
Buying New Tires.............5-59
Different Size Tires and
Wheels............................5-61
Uniform Tire Quality
Grading...........................5-62
Wheel Alignment and Tire
Balance...........................5-63
Wheel Replacement..........5-64
Tire Chains.......................5-65
If a Tire Goes Flat............5-66
Changing a Flat Tire.........5-66
Removing the Spare Tire
and Tools (H3)................5-68
Removing the Spare Tire
and Tools (H3T)..............5-69
Removing the Flat Tire
and Installing the
Spare Tire
.......................5-72
Secondary Latch
System (H3T)..................5-76
Storing a Flat or Spare
Tire and Tools (H3).........5-78
Storing a Flat or Spare
Tire and Tools (H3T).......5-80
Spare Tire........................5-82
Appearance Care
Interior Cleaning................5-83
Fabric/Carpet....................5-84
Leather.............................5-85
Instrument Panel, Vinyl,
and Other Plastic
Surfaces
..........................5-85
Care of Safety Belts.........5-85
Weatherstrips....................5-86
Washing Your Vehicle.......5-86
Cleaning Exterior Lamps/
Lenses............................5-86
Finish Care.......................5-86
Windshield, Backglass,
and Wiper Blades............5-87
Aluminum or
Chrome-Plated Wheels
and Trim
.........................5-88
Tires.................................5-89
Sheet Metal Damage........5-89
Finish Damage..................5-89
Underbody Maintenance. . . .5-89
Chemical Paint Spotting. . . .5-90
Vehicle Identication
Vehicle Identication
Number (VIN)..................5-90
Service Parts
Identication Label...........5-90
5-2 Service and Appearance Care

CAUTION (Continued)
Underinated tires pose
the same danger as
overloaded tires. The
resulting accident could
cause serious injury.
Check all tires frequently to
maintain the recommended
pressure. Tire pressure
should be checked when
your vehicle’s tires are
cold. SeeInflation - Tire
Pressure on page 5-51.
Overinated tires are more
likely to be cut, punctured,
or broken by a sudden
impact — such as when
you hit a pothole. Keep
tires at the recommended
pressure.
Worn, old tires can cause
accidents. If the tire’s tread
is badly worn, or if your
vehicle’s tires have been
damaged, replace them.
Tire Sidewall Labeling
Useful information about a tire
is molded into the sidewall.
The following illustrations are
examples of a typical P-Metric
and a LT-Metric tire sidewall.
(A) Tire Size
:The tire size code
is a combination of letters and
numbers used to dene a
particular tire’s width, height,aspect ratio, construction type,
and service description.
See the “Tire Size” illustration
later in this section for more
detail.
(B) TPC Spec (Tire
Performance Criteria
Specication)
:Original
equipment tires designed to
GM’s specic tire performance
criteria have a TPC specication
code molded onto the sidewall.
GM’s TPC specications meet
or exceed all federal safety
guidelines.
(C) DOT (Department of
Transportation)
:The
Department of Transportation
(DOT) code indicates that
the tire is in compliance
with the U.S. Department of
Transportation Motor Vehicle
Safety Standards.
Passenger (P-Metric) Tire
Service and Appearance Care 5-45