2009 HUMMER H2 ECO mode

Driver Shift Control (DSC)
The vehicle has Driver Shift Control (DSC). DSC
controls the transmission and vehicle speed while driving
down hill or towing a trailer by allowing you to select
a desired range of gears.
To use this feature:
1. Move the shift lever to the M (Manual Mode).
This will force a downshift from the current gear,
for gears 3 through 6.
2. Press the (+) plus or (−) minus button on the left
side of the steering wheel, to select the desired
range of gears for current driving conditions.When in the M (Manual Mode) a number will display
next to the M, indicating the maximum available gear.
The DIC display will show the message MANUAL SHIFT
on the rst line and the maximum available gear will be
displayed on the second line. SeeDriver Information
Center (DIC) on page 3-46andDIC Operation and
Displays (Using DIC Buttons) on page 3-47orDIC
Operation and Displays (Using Trip Odometer Reset
Stem) on page 3-52for more information. The number
displayed in the DIC is the highest gear available.
The transmission will be limited to the gear selected and
lower gears. Shifting will occur normally while driving,
however the cluster will continue to display the maximum
available gear. Higher gears will not be available unless
the selection is changed to include higher gears using
the (+) plus button.
Grade Braking is not available when the Driver Shift
Control is active. SeeTow/Haul Mode on page 2-36and
Towing a Trailer on page 4-55for more information.
While using the DSC, cruise control and the tow/haul
mode can be used.
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Shifting into Neutral
To shift the transfer case to N (Neutral) do the following:
1. Make sure the vehicle is parked so that it will
not roll.
2. Set the parking brake and apply the regular brake
pedal. SeeParking Brake on page 2-42.
3. Start the vehicle or turn the ignition to ON/RUN.
4. Put the transmission in N (Neutral).
5. Shift the transfer case to Full-Time Four-Wheel
Drive.
6. Turn the transfer case dial clockwise to N (Neutral)
position. The transfer case will not shift to N (Neutral)
unless this position is held for 10 seconds. The
N (Neutral) light will come on and then the dial can
be slowly released. The dial will be in the Four-Wheel
Low Lock position but the transfer case will be in
N (Neutral) with the N (Neutral) light on.
7. If the engine is running, make sure that the transfer
case is in N (Neutral) by shifting the transmission
to R (Reverse) for one second, then shift the
transmission to D (Drive) for one second.
8. Turn the ignition to ACC/ACCESSORY, which will
turn the engine off.
9. Place the transmission shift lever in P (Park).10. Release the parking brake prior to moving the
vehicle.
11. Turn the ignition to LOCK/OFF.
Shifting Out of Neutral
To shift out of N (Neutral) do the following:
1. Set the parking brake and apply the regular brake
pedal.
2. Shift the transmission to N (Neutral) and turn the
ignition to ON/RUN with the engine off.
3. Turn the transfer case dial to Full-Time Four-Wheel
Drive, Four-Wheel High Lock or Four-Wheel
Low Lock.
After the transfer case has shifted out of N (Neutral)
the N (Neutral) light will go out.
4. Release the parking brake prior to moving the
vehicle.
Notice:Shifting the transmission into gear before
the requested mode indicator light has stopped
ashing could damage the transfer case. To help
avoid damaging the vehicle, always wait for the
mode indicator lights to stop ashing before
shifting the transmission into gear.
5. Start the engine and shift the transmission to the
desired position.
2-41

Universal Home Remote System
Operation
Your vehicle may have the Universal Home Remote
System. If there are three round Light Emitting Diode
(LED) indicator lights above the Universal Home Remote
buttons, follow the instructions below.
This system provides a way to replace up to three
remote control transmitters used to activate devices
such as garage door openers, security systems,
and home automation devices.Do not use this system with any garage door opener
that does not have the stop and reverse feature.
This includes any garage door opener model
manufactured before April 1, 1982.
Read the instructions completely before attempting to
program the transmitter. Because of the steps involved,
it may be helpful to have another person available to
assist you in programming the transmitter.
Be sure to keep the original remote control transmitter
for use in other vehicles, as well as, for future
programming. You only need the original remote control
transmitter for Fixed Code programming. It is also
recommended that upon the sale or lease termination of
the vehicle, the programmed buttons should be erased
for security purposes. See “Erasing Universal Home
Remote Buttons” later in this section.
When programming a garage door, it is advised to
park outside of the garage. Be sure that people
and objects are clear of the garage door or security
device you are programming.
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Your panel of switches may not appear exactly as
they do in the examples above, but they should
be similar.
The switch positions on your hand-held transmitter
may be labeled, as follows:
A switch in the up position may be labeled
as “Up,” “+,” or “On.”
A switch in the down position may be labeled
as “Down,” “−,” or “Off.”
A switch in the middle position may be labeled
as “Middle,” “0,” or “Neutral.”2. Write down the eight to 12 switch settings from left
to right as follows:
When a switch is in the up position, write “Right.”
When a switch is in the down position,
write “Left.”
If a switch is set between the up and down
position, write “Middle.”
The switch settings that you wrote down in
Step 2 will now become the button strokes you
enter into the Universal Home Remote in Step 4.
Be sure to enter the switch settings that you wrote
down in Step 2, in order from left to right, into
the Universal Home Remote, when completing
Step 4.
3. From inside your vehicle, rst rmly press all three
buttons at the same time for about three seconds.
Release the buttons to put the Universal Home
Remote into programming mode. Example of Eight Dip Switches with Three Positions
2-62

Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
G: Turn and Lane Change Signals
53: Headlamp High/Low-Beam Changer
N: Windshield Wipers
L: Windshield Washer
Flash-to-Pass Feature
Information for these features is on the pages following.
Turn and Lane-Change Signals
An arrow on the instrument
panel cluster ashes in the
direction of the turn or
lane change.
Move the lever all the way up or down to signal a turn.
Raise or lower the lever until the arrow starts to ash to
signal a lane change. The turn signals automatically ash
three times. It will ash six times if the tow-haul mode is
active. Holding the turn signal lever for more than one
second causes the turn signals to ash until the lever
is released.
The lever returns to its starting position when it is
released.
If after signaling a turn or a lane change the arrows
ash rapidly or do not come on, a signal bulb may be
burned out.
Have the bulbs replaced. If the bulb is not burned out,
check the fuse. SeeInstrument Panel Fuse Block on
page 5-111andUnderhood Fuse Block on page 5-113.
3-8

Driver and Passenger Side Temperature
Control
The driver and passenger side temperature buttons
are used to adjust the temperature of the air coming
through the system on the driver or passengers side
of the vehicle. The temperature can be adjusted even
if the system is turned off. This is possible since outside
air always ows through the system as the vehicle is
moving forward unless it is set to recirculation mode.
See “Recirculation” later in this section.
Press the + or−buttons to increase or decrease
the cabin temperature. The driver side or passenger
side temperature display shows the temperature setting
decreasing or increasing.
The passenger temperature setting can be set to match
the driver temperature setting by pressing the PASS
button and turning off the PASS indicator. When the
passenger temperature setting is set different than
the driver’s setting, the indicator on the PASS button
illuminates and both the driver side and passenger
side temperature displays are shown.
Automatic Operation
AUTO (Automatic):When automatic operation is
active the system will control the inside temperature,
the air delivery, and the fan speed.
Use the steps below to place the entire system in
automatic mode:
1. Press the AUTO button.
When AUTO is selected, the display will change
to show the current temperature(s) and AUTO will
be lit on the display. The current delivery mode
and fan speed will also be displayed for
approximately 5 seconds.
When AUTO is selected, the air conditioning
operation and air inlet will be automatically
controlled. The air conditioning compressor
will run when the outside temperature is over
about 40°F (4°C). The air inlet will normally be
set to outside air. If it is hot outside, the air inlet
may automatically switch to recirculate inside air
to help quickly cool down the vehicle. The light
on the button comes on in recirculation.
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H(Vent):Air is directed to the instrument panel
outlets.
)(Bi-Level):Air is divided between the instrument
panel and oor outlets. Some air is directed towards the
windshield and side window outlets.
6(Floor):Air is directed to the oor outlets, with
some to the windshield, side window outlets, and second
row oor outlets. In this mode, the system automatically
selects outside air.
-(Defog):This mode clears the windows of fog or
moisture. Air is directed to the windshield, oor outlets,
and side window vents. In this mode, the system turns off
recirculation and runs the air conditioning compressor
unless the outside temperature is close to freezing.
The recirculation mode cannot be selected while in
the defog mode.
0(Defrost):This mode removes fog or frost from the
windshield more quickly. Air is directed to the windshield
and side window vents, with some directed to the oor
vents. In this mode, the system automatically forces
outside air into the vehicle and runs the air conditioning
compressor unless the outside temperature is close to
freezing. The recirculation mode cannot be selected while
in the defrost mode.
Do not drive the vehicle until all the windows are clear.
#(Air Conditioning):Press to turn the air
conditioning (A/C) compressor on and off. An indicator
light comes on to show that the air conditioning is on.
If this button is pressed when the air conditioning
compressor is unavailable, the indicator ashes three
times and then turns off. If the air conditioning is on and
the outside temperature drops below a temperature
which is too cool for air conditioning to be effective,
the air conditioning light turns off to show that the air
conditioning mode has been canceled.
On hot days, open the windows long enough to let hot
inside air escape. This helps to reduce the time it takes
for the vehicle to cool down. It also helps the system to
operate more efficiently.
The air conditioning system removes moisture from
the air, so a small amount of water might drip under
the vehicle while idling or after turning off the engine.
This is normal.
@(Recirculation):Press to turn the recirculation
mode on or off. An indicator light comes on to show
that the recirculation is on.
This mode recirculates and helps to quickly cool the
air inside the vehicle. It can be used to help prevent
outside air and odors from entering the vehicle.
3-25

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