service schedule HUMMER H3 2009 Owners Manual

Seats and Restraint
System............................... 1-1
Head Restraints
.............. 1-2
Front Seats
.................... 1-3
Rear Seats
.................... 1-7
Safety Belts
..................1-11
Child Restraints
.............1-25
Airbag System
..............1-46
Restraint System
Check
......................1-60
Features and Controls...... 2-1
Keys
............................. 2-2
Doors and Locks
............ 2-5
Windows
........................ 2-9
Theft-Deterrent
Systems
...................2-11
Starting and Operating Your
Vehicle
.....................2-15
Mirrors
.........................2-33
Object Detection
Systems
...................2-36
OnStar
®System
............2-39Universal Home
Remote System
.........2-42
Storage Areas
...............2-47
Sunroof
........................2-50
Instrument Panel............... 3-1
Instrument Panel
Overview
.................... 3-4
Climate Controls
............3-19
Warning Lights, Gages,
and Indicators
............3-22
Driver Information
Center (DIC)
.............3-34
Audio System(s)
............3-41
Driving Your Vehicle......... 4-1
Your Driving, the Road,
and the Vehicle
........... 4-1
Towing
........................4-40
Service and
Appearance Care............... 5-1
Service
.......................... 5-3
Fuel
.............................. 5-5
Checking Things Under
the Hood
.................... 5-9
Rear Axle
.....................5-38Four-Wheel Drive
..........5-38
Front Axle
....................5-39
Headlamp Aiming
..........5-39
Bulb Replacement
.........5-41
Windshield Wiper Blade
Replacement
.............5-44
Tires
...........................5-44
Appearance Care
..........5-83
Vehicle Identication
......5-90
Electrical System
...........5-91
Capacities and
Specications
............5-96
Maintenance Schedule...... 6-1
Maintenance Schedule
..... 6-1
Customer Assistance
Information........................ 7-1
Customer Assistance and
Information
................. 7-1
Reporting Safety
Defects
.....................7-14
Vehicle Data Recording
and Privacy
...............7-16
Index....................................i-1
2009 HUMMER H3/H3T Owner ManualM

Restraint System
Check
Checking the Restraint
Systems
Safety Belts
Now and then, check the safety
belt reminder light, safety belts,
buckles, latch plates, retractors, and
anchorages are all working properly.
Look for any other loose or damaged
safety belt system parts that might
keep a safety belt system from doing
its job. See your dealer/retailer to
have it repaired. Torn or frayed
safety belts may not protect you in a
crash. They can rip apart under
impact forces. If a belt is torn or
frayed, get a new one right away.
Make sure the safety belt reminder
light is working. SeeSafety Belt
Reminders on page 3-24for more
information.Keep safety belts clean and dry.
SeeCare of Safety Belts on
page 5-85.
Airbags
The airbag system does not need
regularly scheduled maintenance
or replacement. Make sure the
airbag readiness light is working.
SeeAirbag Readiness Light
on page 3-25for more information.
Notice:If an airbag covering
is damaged, opened, or broken,
the airbag may not work properly.
Do not open or break the airbag
coverings. If there are any opened
or broken airbag covers, have
the airbag covering and/or airbag
module replaced. For the
location of the airbag modules,
seeWhat Makes an Airbag
Inflate? on page 1-52. See your
dealer/retailer for service.
Replacing Restraint
System Parts After a
Crash
{CAUTION
A crash can damage the
restraint systems in your vehicle.
A damaged restraint system may
not properly protect the person
using it, resulting in serious injury
or even death in a crash. To help
make sure your restraint systems
are working properly after a crash,
have them inspected and any
necessary replacements made
as soon as possible.
1-60 Seats and Restraint System

Notice:Lack of proper engine oil
maintenance can damage the
engine. The repairs would not be
covered by the vehicle warranty.
Always follow the maintenance
schedule in this manual for
changing engine oil.
The oil pressure light should come
on briey as the engine is started.
If it does not come on have the
vehicle serviced by your
dealer/retailer.
If the light comes on and stays on, it
means that oil is not owing
through the engine properly. The
vehicle could be low on oil and
might have some other system
problem.Security Light
For information regarding this light
and the vehicle’s security system,
seeContent Theft-Deterrent
on page 2-11.
Cruise Control Light
This light comes on whenever the
cruise control is set.
The light goes out when the cruise
control is turned off. SeeCruise
Control on page 3-9for more
information.
Highbeam On Light
This light comes on when the
high-beam headlamps are in use.
SeeHeadlamp High/Low-Beam
Changer on page 3-7for more
information.
Fuel Gage
The fuel gage indicates about how
much fuel there is remaining in
the fuel tank. The ignition must be
in ON/RUN.
United StatesCanada
Instrument Panel 3-33

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

Driving in Water
{CAUTION
Driving through rushing water can
be dangerous. Deep water can
sweep your vehicle downstream
and you and your passengers
could drown. If it is only shallow
water, it can still wash away the
ground from under your tires, and
you could lose traction and roll
the vehicle over. Do not drive
through rushing water.
Heavy rain can mean ash ooding,
and ood waters demand extreme
caution.Find out how deep the water is
before driving through it. Do not
try it if it is deep enough to cover
the wheel hubs, axles, or exhaust
pipe — you probably will not get
through. Deep water can damage the
axle and other vehicle parts. The
vehicle is capable of depths up to
20 inches (50 cm). Know how to
judge whether the water is deeper
than this before proceeding into it.
If the water is not too deep, drive
slowly through it. At faster speeds,
water splashes on the ignition
system and the vehicle can stall.
Stalling can also occur if you get the
tailpipe under water. If the tailpipe
is under water, you will never
be able to start the engine. When
going through water, remember that
when the brakes get wet, it might
take longer to stop. SeeDriving
in Rain and on Wet Roads on
page 4-29.
After Off-Road Driving
Remove any brush or debris that
has collected on the underbody,
chassis, or under the hood. These
accumulations can be a re hazard.
After operation in mud or sand,
have the brake linings cleaned and
checked. These substances can
cause glazing and uneven braking.
Check the engine and oil coolers
for mud accumulation. Thoroughly
and carefully clean these devices to
allow proper cooling. Check the
body structure, steering, suspension,
wheels, tires, and exhaust system
for damage and check the fuel lines
and cooling system for any
leakage.
The vehicle requires more frequent
service due to off-road use.
Refer to the Maintenance Schedule
for additional information.
Driving Your Vehicle 4-27

Maintenance When Trailer
Towing
The vehicle needs service more
often when pulling a trailer. See this
manual’s Maintenance Schedule
or Index for more information.
Things that are especially important
in trailer operation are automatic
transmission uid, engine oil,
axle lubricant, belts, cooling system
and brake system. It is a good
idea to inspect these before and
during the trip.
Check periodically to see that all
hitch nuts and bolts are tight.
Trailer Wiring Harness
Light-Duty Trailer Wiring Package
If the vehicle does not have a
trailer towing package, the chassis
harness will contain the following
blunt cut circuits:
Yellow: Left Stop/Turn Signal
Dark Green: Right Stop/Turn
Signal
White: Ground
Brown: Tail Lamps
To add a trailer towing wiring
package, have it installed by your
dealer/retailer or a qualied
service center. Also, seeAdd-On
Electrical Equipment on page 5-91
for more information.Heavy-Duty Trailer Wiring
Package
If the vehicle has a trailer towing
package, the rear bumper harness
will have a seven-pin universal
heavy-duty trailer connector
attached to a bracket on the hitch
platform.
Driving Your Vehicle 4-51

Engine Air Cleaner/Filter
The engine air cleaner/lter is
located in the engine compartment
on the passenger side of the
vehicle. SeeEngine Compartment
Overview on page 5-10for more
information on location.
When to Inspect the Engine
Air Cleaner/Filter
Inspect the air cleaner/lter at the
MaintenanceIIintervals and replace
it at the rst oil change after each
50,000 mile (80 000 km) interval.SeeScheduled Maintenance on
page 6-4for more information. If you
are driving in dusty/dirty conditions,
inspect the lter at each engine
oil change.
How to Inspect the Engine Air
Cleaner/Filter
To inspect or replace the engine air
cleaner/lter:
1. Unfasten the clips that hold the
cover on and remove the cover.
2. Lift out the engine air
cleaner/lter.
3. Inspect or replace the air lter.
SeeMaintenance Replacement
Parts on page 6-14to
determine which lter to use.
4. Reinstall the engine air
cleaner/lter cover. Fasten the
clips to hold the cover in place.
{CAUTION
Operating the engine with the
air cleaner/lter off can cause you
or others to be burned. The air
cleaner not only cleans the air;
it helps to stop ames if the
engine backres. If it is not there
and the engine backres, you
could be burned. Do not drive
with it off, and be careful
working on the engine with the
air cleaner/lter off.
Notice:If the air cleaner/lter
is off, a backre can cause a
damaging engine re. And, dirt
can easily get into the engine,
which will damage it. Always have
the air cleaner/lter in place when
you are driving. 3.7 L shown (5.3 L similar)
Service and Appearance Care 5-17

Checking the Fluid Level
To prepare the vehicle:
1. Park the vehicle on a level place.
Keep the engine running.
2. With the parking brake applied,
place the shift lever in P (Park).
3. With your foot on the brake
pedal, move the shift lever
through each gear range,
pausing for about three seconds
in each range. Then, position
the shift lever in P (Park).
4. Let the engine run at idle for
three minutes or more.
Then, without shutting off the
engine:
1. Flip the handle up and then pull
out the dipstick and wipe it with
a clean rag or paper towel.The automatic transmission
dipstick handle with this symbol
on it is located in the engine
compartment on the passenger
side of the vehicle.
SeeEngine Compartment
Overview on page 5-10for more
information on location.
2. Push it back in all the way, wait
three seconds, and pull it back
out again.
3. Check both sides of the dipstick,
and read the lower level.
The uid level must be in
the COLD area, below thecross-hatched area, for a
cold check or in the HOT or
cross-hatched area for a
hot check. Be sure to keep the
dipstick pointed down to get
an accurate reading.
4. If the uid level is in the
acceptable range, push
the dipstick back in all the way;
then ip the handle down to
lock the dipstick in place.
How to Add Automatic
Transmission Fluid
Refer to the Maintenance
Schedule to determine what kind
of transmission uid to use.
SeeRecommended Fluids and
Lubricants on page 6-12.
Add uid only after checking the
transmission uid while it is hot.
A cold check is used only as
a reference. If the uid level is low,
add only enough of the proper
uid to bring the level up to the
HOT area for a hot check.
Service and Appearance Care 5-19

3. Check that the lubricant level
is up to the bottom of the ller
plug hole.
4. If the uid level is good, install
the plug and be sure it is fully
seated. If the uid level is low,
add more uid as described
in the next steps.
How to Add Fluid
Refer to the Maintenance Schedule
to determine what kind of uid to
use. SeeRecommended Fluids and
Lubricants on page 6-12.
1. Remove the ller plug.
2. Add uid at the ller plug hole.
Add only enough uid to bring
the uid level up to the bottom of
the ller plug hole.
3. Install the ller plug. Be sure the
plug is fully seated.
Hydraulic Clutch
The hydraulic clutch linkage in
the vehicle is self-adjusting.
The clutch master cylinder reservoir
is lled with hydraulic clutch uid.
The hydraulic clutch uid reservoir
cap has this symbol on it. See
Engine Compartment Overview on
page 5-10for reservoir location.
It is not necessary to regularly check
clutch uid unless a leak in the
system is suspected. Adding uid
will not correct a leak.
A uid loss in this system could
indicate a problem. Have the system
inspected and repaired.
When to Check and What
to Use
Refer to the Maintenance Schedule
to determine how often to check
the uid level in the clutch master
cylinder reservoir and for the proper
uid. SeeRecommended Fluids
and Lubricants on page 6-12.
How to Check and Add Fluid
The proper uid should be added
if the level does not reach the
bottom of the diaphragm when it is
in place in the reservoir. See the
instructions on the reservoir cap.
Service and Appearance Care 5-21

Do not top off the brake uid. Adding
uid does not correct a leak. If uid is
added when the linings are worn,
there will be too much uid when new
brake linings are installed. Add or
remove brake uid, as necessary,
only when work is done on the brake
hydraulic system.
{CAUTION
If too much brake uid is added,
it can spill on the engine and
burn, if the engine is hot enough.
You or others could be burned,
and the vehicle could be
damaged. Add brake uid only
when work is done on the brake
hydraulic system. See “Checking
Brake Fluid” in this section.
Refer to the Maintenance Schedule
to determine when to check the
brake uid. SeeScheduled
Maintenance on page 6-4.
Checking Brake Fluid
Check brake uid by looking at the
brake uid reservoir. SeeEngine
Compartment Overview on
page 5-10.
The uid level should be above
MIN. If it is not, have the brake
hydraulic system checked to see
if there is a leak.
After work is done on the brake
hydraulic system, make sure the
level is above the MIN but not over
the MAX mark.
What to Add
Use only new DOT-3 brake uid
from a sealed container. See
Recommended Fluids and
Lubricants on page 6-12.
Always clean the brake uid
reservoir cap and the area around
the cap before removing it. This
helps keep dirt from entering
the reservoir.{CAUTION
With the wrong kind of uid in the
brake hydraulic system, the brakes
might not work well. This could
cause a crash. Always use the
proper brake uid.
Notice:
Using the wrong uid can badly
damage brake hydraulic system
parts. For example, just a few
drops of mineral-based oil,
such as engine oil, in the brake
hydraulic system can damage
brake hydraulic system parts so
badly that they will have to be
replaced. Do not let someone
put in the wrong kind of uid.
If brake uid is spilled on the
vehicle’s painted surfaces, the
paint nish can be damaged.
Be careful not to spill brake uid
on the vehicle. If you do, wash it
off immediately. SeeWashing
Your Vehicle on page 5-86.
Service and Appearance Care 5-31