warning lights HUMMER H2 2009 Owners Manual

Seats and Restraint System............................. 1-1
Head Restraints
......................................... 1-2
Front Seats
............................................... 1-4
Rear Seats
..............................................1-10
Safety Belts
.............................................1-20
Child Restraints
.......................................1-40
Airbag System
.........................................1-67
Restraint System Check
............................1-80
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
......................................2-10
Windows
.................................................2-19
Theft-Deterrent Systems
............................2-23
Starting and Operating Your Vehicle
...........2-27
Mirrors
....................................................2-47
Object Detection Systems
..........................2-50
OnStar
®System
......................................2-54
Universal Home Remote System
................2-57
Storage Areas
.........................................2-64
Sunroof
..................................................2-68
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-22
Warning Lights, Gages, and Indicators
........3-29
Driver Information Center (DIC)
..................3-46
Audio System(s)
.......................................3-72Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and the Vehicle
....... 4-2
Towing
...................................................4-50
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-11
Rear Axle
...............................................5-47
Four-Wheel Drive
.....................................5-48
Front Axle
...............................................5-49
Bulb Replacement
....................................5-50
Windshield Wiper Blade Replacement
.........5-56
Tires
......................................................5-57
Appearance Care
...................................5-102
Vehicle Identication
...............................5-109
Electrical System
....................................5-109
Capacities and Specications
...................5-117
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-14
Vehicle Data Recording and Privacy
...........7-16
Index................................................................ 1
2009 HUMMER H2 Owner ManualM

C (ON/RUN):This position can be used to operate the
electrical accessories and to display some instrument
panel cluster warning and indicator lights. The switch
stays in this position when the engine is running.
The transmission is also unlocked in this position
on automatic transmission vehicles.
If you leave the key in the ACC/ACCESSORY or ON/
RUN position with the engine off, the battery could be
drained. You may not be able to start the vehicle if the
battery is allowed to drain for an extended period of time.
D (START):This is the position that starts the engine.
When the engine starts, release the key. The ignition
switch returns to ON/RUN for driving.
A warning tone will sound when the driver door is
opened, the ignition is in ACC/ACCESSORY or
LOCK/OFF and the key is in the ignition.Retained Accessory Power (RAP)
These vehicle accessories can be used for up to
10 minutes after the engine is turned off:
Audio System
Sunroof
Power Windows
The sunroof and power windows will continue to work
up to 10 minutes after the key is turned to LOCK/OFF
or until any door is opened. The radio will continue
to work for up to 10 minutes after the key is turned
to LOCK/OFF or until the driver door is opened.
Starting the Engine
Move the shift lever to P (Park) or N (Neutral).
The engine will not start in any other position.
To restart the engine when the vehicle is already
moving, use N (Neutral) only.
Notice:Do not try to shift to P (Park) if the
vehicle is moving. If you do, you could damage
the transmission. Shift to P (Park) only when the
vehicle is stopped.
2-29

N (Neutral):Shift the transfer case to N (Neutral) only
when towing the vehicle. SeeRecreational Vehicle
Towing on page 4-50orTowing Your Vehicle on
page 4-50for more information.
Indicator lights in the dial show which mode you are in.
The indicator lights will come on briey when you turn on
the ignition and one will stay on. If the lights do not come
on, take the vehicle to your dealer/retailer for service.
An indicator light will ash while shifting the transfer case.
It will remain on when the shift is complete. If the transfer
case cannot make a requested shift, it will return to the
last chosen setting.
If the SERVICE 4WD message stays on, you should
take the vehicle to your dealer/retailer for service.
See “Service 4WD message” underDriver Information
Center (DIC) on page 3-46.
Shifting between Four-Wheel High and
Four-Wheel-High Lock
With the vehicle traveling less than 40 mph
(64 km/h), turn the dial to the Four-Wheel High or
Four-Wheel-High Lock position. The indicator light
on the dial will ash while shifting. It will remain on
when the shift is complete.
It may be necessary to drive backwards for a short
distance of 25 feet (7.5 m) to get the lock feature
to disengage.
Shifting into Four-Wheel-Low Lock
To shift into Four-Wheel-Low Lock, the ignition must be
in ON/RUN and the vehicle must be stopped or moving
less than 3 mph (5 km/h) with the transmission in
N (Neutral). The preferred method for shifting into
Four-Wheel Low Lock is to have the vehicle moving
1 to 2 mph (1.6 to 3.2 km/h). Turn the dial to the
Four-Wheel-Low Lock position. You must wait for the
Four-Wheel-Low Lock indicator light on the dial to stop
ashing and remain lit before shifting the transmission
in gear.
When the transfer case is shifted into the
Four-Wheel-Low Lock position a StabiliTrak
®indicator
light will come on to show that the system has been
turned off and a message will show in the DIC.
SeeDIC Warnings and Messages on page 3-56
for more information.
Notice:Shifting the transmission into gear before
the indicator light stops ashing could cause
damage to the transfer case. Always wait until the
indicator light stops ashing before putting the
transmission back in gear.
It is normal for the vehicle to have engagement noise
and bump when shifting between Four-Wheel Low Lock,
Full-Time Four-Wheel Drive or Four-Wheel-High Lock
ranges or from N (Neutral) with the engine running.
2-39

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Horn .............................................................3-6
Tilt Wheel.....................................................3-6
Heated Steering Wheel...................................3-7
Turn Signal/Multifunction Lever.........................3-8
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-9
Flash-to-Pass.................................................3-9
Windshield Wipers........................................3-10
Windshield Washer.......................................3-10
Rear Window Wiper/Washer...........................3-11
Cruise Control..............................................3-12
Exterior Lamps.............................................3-15
Headlamps on Reminder................................3-16
Daytime Running Lamps (DRL).......................3-16
Automatic Headlamp System..........................3-17
Instrument Panel Brightness...........................3-17
Dome Lamps ...............................................3-18
Dome Lamp Override....................................3-18
Entry/Exit Lighting.........................................3-18
Reading Lamps............................................3-18
Electric Power Management...........................3-19
Battery Run-Down Protection..........................3-19
Accessory Power Outlet(s).............................3-20
Ashtray(s) and Cigarette Lighter......................3-21
Analog Clock...............................................3-21Climate Controls............................................3-22
Dual Automatic Climate Control System...........3-22
Outlet Adjustment.........................................3-27
Rear Air Conditioning and Heating System
and Electronic Climate Controls....................3-28
Warning Lights, Gages, and Indicators............3-29
Instrument Panel Cluster................................3-30
Speedometer and Odometer...........................3-31
Trip Odometer..............................................3-31
Tachometer.................................................3-31
Safety Belt Reminders...................................3-32
Airbag Readiness Light..................................3-32
Airbag Off Light............................................3-33
Charging System Light..................................3-35
Voltmeter Gage............................................3-36
Brake System Warning Light..........................3-37
Antilock Brake System (ABS) Warning Light.....3-38
StabiliTrak
®Indicator Light.............................3-38
Engine Coolant Temperature Gage..................3-39
Tire Pressure Light.......................................3-39
Malfunction Indicator Lamp.............................3-40
Oil Pressure Gage........................................3-42
Oil Pressure Light.........................................3-43
Security Light...............................................3-44
Cruise Control Light......................................3-44
Highbeam On Light.......................................3-44
Section 3 Instrument Panel
3-1

Manual Operation
DC(Fan Control):Press these buttons on the rear
seat audio control panel to increase or decrease airow.
+/−(Temperature Control):Press these buttons
to adjust the temperature of the air owing into the
passenger area. Press the + button for warmer air
and press the−button for cooler air. The temperature
settings will display in 0-12 increments, going from
the coolest (0) to the warmest (12) setting.
N(Air Delivery Mode Control):Press the mode
button to change the direction of the airow in the
vehicle. Repeatedly press the button until the desired
mode appears on the display. Multiple presses will cycle
through the delivery selections.
Select from the following:
H(Vent):Air is directed to the headliner outlets.
)(Bi-Level):Air is directed to the oor outlets as well
as the headliner outlets. The rear system oor outlet
is located at the passenger side rear quarter trim panel.
6(Floor):Air is directed to the oor outlets.
The rear system oor outlets are located under
the seats.
Warning Lights, Gages, and
Indicators
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause
an expensive repair or replacement. Paying attention
to the warning lights and gages could prevent injury.
Warning lights come on when there may be or is
a problem with one of the vehicle’s functions. Some
warning lights come on briey when the engine is
started to indicate they are working.
Gages can indicate when there may be or is a problem
with one of the vehicle’s functions. Often gages and
warning lights work together to indicate a problem with
the vehicle.
When one of the warning lights comes on and stays on
while driving, or when one of the gages shows there may
be a problem, check the section that explains what to do.
Follow this manual’s advice. Waiting to do repairs can be
costly and even dangerous.
3-29

{CAUTION:
If the airbag readiness light ever comes on and
stays on, it means that something may be wrong
with the airbag system. For example, the right
front passenger airbag could inate even though
the airbag on-off switch is turned off.
To help avoid injury to yourself or others, have the
vehicle serviced right away. SeeAirbag Readiness
Light on page 3-32for more information, including
important safety information.
If the word ON or the on symbol is lit, it means that
the right front passenger frontal airbag is enabled (may
inate). SeeAirbag Off Switch on page 1-76for more
information, including important safety information.
If, after several seconds, both status indicator lights
remain on, or if there are no lights at all, there may
be a problem with the lights or the airbag on-off switch.
See your dealer/retailer for service.
Charging System Light
This light comes on briey
when the ignition key is
turned to START, 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.
The light should go out once the engine starts. If it stays
on, or comes on while driving, there could be a problem
with the charging system. A charging system message
in the Driver Information Center (DIC) can also appear.
SeeDIC Warnings and Messages on page 3-56for
more information. This light could indicate that there are
problems with a generator drive belt, or that there is an
electrical problem. Have it checked right away. If the
vehicle must be driven a short distance with the light
on, turn off accessories, such as the radio and air
conditioner.
3-35

Traction Control Operation
The traction control system is part of the
StabiliTrak system. Traction control limits wheel
spin by reducing engine power to the wheels (engine
speed management) and by applying brakes to
each individual wheel (brake-traction control) as
necessary.
The traction control system is enabled automatically
when the vehicle is started. It will activate and the
StabiliTrak light will ash if it senses that any of the
wheels are spinning or beginning to lose traction while
driving. If the traction control is turned off, only the
brake-traction control portion of traction control will work.
The engine speed management will be disabled. In this
mode, engine power is not reduced automatically and the
driven wheels can spin more freely. This can cause the
brake-traction control to activate constantly.
Notice:If the wheel(s) of one axle is allowed to
spin excessively while the StabiliTrak, ABS
and brake warning lights and any relevant DIC
messages are displayed, the transfer case could bedamaged. The repairs would not be covered by the
vehicle warranty. Reduce engine power and do
not spin the wheel(s) excessively while these lights
and messages are displayed.
The traction control system may activate on dry or
rough roads or under conditions such as heavy
acceleration while turning or abrupt upshifts/downshifts
of the transmission. When this happens, a reduction
in acceleration may be noticed, or a noise or vibration
may be heard. This is normal.
If cruise control is being used when StabiliTrak activates,
the cruise control automatically disengages. The
cruise control can be re-engaged when road conditions
allow. SeeCruise Control on page 3-12.
StabiliTrak may also turn off automatically if it determines
that a problem exists with the system. If the problem does
not clear itself after restarting the vehicle, see your
dealer/retailer for service.
4-8

5. With the coolant surge tank pressure cap off, start
the engine and let it run until you can feel the upper
radiator hose getting hot. Watch out for the
engine cooling fan.
By this time, the coolant level inside the coolant
surge tank may be lower. If the level is lower, add
more of the proper mixture to the coolant surge tank
until the level reaches the FULL COLD mark.
6. Then replace the pressure cap. Be sure the
pressure cap is hand-tight and fully seated.
7. Verify coolant level after engine is shut off and the
coolant is cold. If necessary, repeat coolant ll
procedure steps 1 through 7.
Engine Coolant
The cooling system in the vehicle is lled with
DEX-COOL®engine coolant. This coolant is designed
to remain in the vehicle for ve years or 150,000 miles
(240 000 km), whichever occurs rst, if you add only
DEX-COOL
®extended life coolant.
The following explains the cooling system and how to add
coolant when it is low. If you have a problem with engine
overheating, seeEngine Overheating on page 5-33.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as they
should.
Notice:Using coolant other than DEX-COOL
®can
cause premature engine, heater core, or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at the rst maintenance
service after each 30,000 miles (50 000 km) or
24 months, whichever occurs rst. Any repairs would
not be covered by the vehicle warranty. Always use
DEX-COOL
®(silicate-free) coolant in the vehicle.
5-31

I
Ignition Positions.............................................2-28
Infants and Young Children, Restraints...............1-43
Ination - Tire Pressure...................................5-63
Instrument Panel
Brightness..................................................3-17
Cluster.......................................................3-30
Overview..................................................... 3-4
J
Jump Starting.................................................5-42
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-58
Lamp
Malfunction Indicator....................................3-40
Lamps
Dome ........................................................3-18
Dome Lamp Override...................................3-18
Reading.....................................................3-18Lap-Shoulder Belt...........................................1-34
LATCH System for Child Restraints...................1-51
Liftgate
Carbon Monoxide........................................2-13
Light
Airbag Off..................................................3-33
Airbag Readiness........................................3-32
Antilock Brake System (ABS) Warning............3-38
Brake System Warning.................................3-37
Charging System.........................................3-35
Cruise Control.............................................3-44
Highbeam On.............................................3-44
Low Fuel Warning.......................................3-46
Oil Pressure...............................................3-43
Safety Belt Reminders..................................3-32
Security.....................................................3-44
StabiliTrak
®Indicator....................................3-38
Tire Pressure..............................................3-39
Tow/Haul Mode...........................................3-44
Lighting
Entry/Exit...................................................3-18
Lights
Exterior Lamps............................................3-15
Flash-to-Pass............................................... 3-9
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-16
Loading Your Vehicle.......................................4-44
Locking Rear Axle...........................................4-10
Lockout Protection..........................................2-12
7

W
Warning Lights, Gages, and Indicators...............3-29
Warnings
DIC Warnings and Messages........................3-56
Hazard Warning Flashers............................... 3-6
Safety and Symbols......................................... iii
Wheels
Alignment and Tire Balance..........................5-76
Different Size..............................................5-74
Replacement...............................................5-76
Where to Put the Restraint...............................1-50
Windows.......................................................2-19
Power ........................................................2-20
Windshield
Backglass, and Wiper Blades, Cleaning........5-107
Washer......................................................3-10
Washer Fluid..............................................5-37Windshield (cont.)
Wiper Blade Replacement.............................5-56
Wiper Fuses.............................................5-110
Wipers.......................................................3-10
Windshield, Rear Washer/Wiper........................3-11
Winter Driving................................................4-37
X
XM Radio Messages.....................................3-105
XM™ Satellite Radio Antenna System..............3-130
Y
Your Vehicle and the Environment....................... 6-2
14