transmission HUMMER H3 2009 User Guide

An indicator light will ash while
shifting the transfer case. If the
transfer case cannot make a
requested shift, it will return to the
last chosen setting.
If the SERV 4WD message on the
Driver Information Center (DIC)
stays on, take the vehicle to
your dealer/retailer for service.
See Service 4WD message under
DIC Warnings and Messages
on page 3-37.
Shifting between Four-Wheel
High and Four-Wheel-High Lock
With the vehicle traveling less
than 75 mph (120 km/h), press and
release the Four-Wheel High or
Four-Wheel-High Lock button.
It may be necessary to drive
backwards while turning for a
distance of 25 feet (7.5 m) to get
the lock feature to disengage.Shifting into Four-Wheel Low Lock
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.
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 is to have
the vehicle moving 1 to 2 mph
(1.6 to 3.2 km/h). Press and release
the Four-Wheel-Low Lock button.
If the vehicle has a manual
transmission, the clutch pedal must
be pressed to the oor while you
press the Four-Wheel-Low Lock
button, or the shift will not be
completed. You must wait for theFour-Wheel-Low Lock indicator
light to stop ashing and remain lit
before shifting the transmission
into gear.
It is normal for the vehicle to have
engagement noise and bump
when shifting between Four-Wheel
Low and Four-Wheel High ranges
or from Neutral.
If the Four-Wheel-Low Lock button
is pressed when the vehicle is
in gear and/or moving too fast, the
Four-Wheel-Low Lock indicator
light will ash for 15 seconds and
not complete the shift.
Features and Controls 2-25

Shifting Out of
Four-Wheel-Low Lock
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.
To shift out of Four-Wheel-Low Lock,
the vehicle must be stopped or
moving less than 3 mph (5 km/h)
with the transmission in N (Neutral)
and the ignition in ON/RUN.
The preferred method for shifting out
of Four-Wheel-Low Lock is to have
the vehicle moving 1 to 2 mph
(1.6 to 3.2 km/h). Press and
release the Four-Wheel High or
Four-Wheel-High Lock button.If the vehicle has a manual
transmission, the clutch pedal must
be pressed to the oor while you
press the Four-Wheel High or
Four-Wheel-High Lock button, or the
shift will not be completed. You must
wait for the Four-Wheel High or
Four-Wheel-High Lock indicator light
to stop ashing and remain lit before
shifting the transmission into gear.
It is normal for the vehicle to have
engagement noise and bump
when shifting between Four-Wheel
Low and Four-Wheel High ranges
or from Neutral.
If the Four-Wheel High or
Four-Wheel-High Lock button is
pressed when the vehicle is in
gear and/or moving too fast,
the Four-Wheel High or
Four-Wheel-High Lock indicator
light will ash for 15 seconds but
will not complete the shift.Shifting Into Neutral
To shift the transfer case to Neutral:
1. Set the parking brake.
2. Start the vehicle.
3. Put the transmission in
N (Neutral). If the vehicle has a
manual transmission, press and
hold the clutch pedal down while
you perform Steps 5 through 9.
4. Shift the transfer case to
Four-Wheel High.
{CAUTION
Shifting an all-wheel-drive
vehicle’s transfer case into
Neutral can cause the vehicle
to roll even if the automatic
transmission is in P (Park) or the
manual transmission is in any
gear. You or others could be
injured. Make sure the parking
brake is rmly set before you shift
the transfer case to Neutral.
2-26 Features and Controls

5. Simultaneously press and hold
the Four-Wheel High and
Four-Wheel-Low Lock buttons for
10 seconds. The Neutral light
will come on when the transfer
case shift to Neutral is complete.
6. Press and hold the regular brake
pedal and shift the transmission
to R (Reverse), then shift the
transmission to D (Drive) for an
automatic transmission, or
1 (First) for vehicles have a
manual transmission and then let
out the clutch. This is to ensure
the transfer case is in Neutral.
If not, repeat this procedure
starting at Step 3.
7. Turn the engine off.
8. Place the transmission shift lever
in P (Park) for an automatic
transmission, or 1 (First) for
vehicles that have a manual
transmission.
9. Turn the ignition to LOCK/OFF.Shifting Out of Neutral
To shift out of Neutral:
1. Set the parking brake and apply
the regular brake pedal.
2. Shift the transmission to
N (Neutral) for an automatic
transmission, or press the clutch
pedal for vehicles that have a
manual transmission. Then turn
the ignition to ON/RUN but
do not start the engine.
3. Press the button for the desired
transfer case shift position
(Four-Wheel High,
Four-Wheel-High Lock or
Four-Wheel-Low Lock).
After the transfer case has
shifted out of Neutral the light
will go out.
4. Release the parking brake.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.
5. You may start the engine and
shift the transmission to the
desired position.
Features and Controls 2-27

Shifting Into Park
(Automatic Transmission)
{CAUTION
It can be dangerous to get out of
the vehicle if the shift lever is not
fully in P (Park) with the parking
brake rmly set. The vehicle can
roll. If you have left the engine
running, the vehicle can move
suddenly. You or others could be
injured. To be sure the vehicle will
not move, even when you are on
fairly level ground, use the steps
that follow. If you are pulling a
trailer, seeTowing a Trailer on
page 4-42.
1. Hold the brake pedal down,
then set the parking brake.
SeeParking Brake on page 2-28
for more information.
{CAUTION
With all-wheel drive, the vehicle
will be free to roll — even if the
shift lever is in P (Park) — if the
transfer case is in Neutral. So, be
sure the transfer case is in a drive
gear, four-wheel high (4H) or
four-wheel low (4L) — not in
Neutral.
2. Move the shift lever into P (Park)
by pressing the shift lever button
and moving the lever as far
forward as it will go.
3. Turn the ignition key to
LOCK/OFF.
4. Remove the key from the
ignition.
Leaving Your Vehicle
With the Engine Running
(Automatic Transmission)
{CAUTION
It can be dangerous to leave the
vehicle with the engine running.
The vehicle could move suddenly
if the shift lever is not fully in
P (Park) with the parking brake
rmly set. And, if you leave the
vehicle with the engine running,
it could overheat and even catch
re. You or others could be
injured. Do not leave the vehicle
with the engine running.
If you have to leave the vehicle with
the engine running, be sure the
vehicle is in P (Park) and the parking
brake is rmly set before you
leave it. After you have moved the
shift lever into P (Park), hold
the regular brake pedal down.
Features and Controls 2-29

Then, see if you can move the shift
lever away from P (Park) without
rst pressing the shift lever button.
If you can, it means that the
shift lever was not fully locked into
P (Park).
Torque lock is when the weight of
the vehicle puts too much force
on the parking pawl in the
transmission. This happens when
parking on a hill and shifting
the transmission into P (Park) is
not done properly and then it
is difficult to shift out of P (Park).
To prevent torque lock, set the
parking brake and then shift into
P (Park). To nd out how, see
“Shifting Into P (Park)” listed
previously.
If torque lock does occur, your
vehicle may need to be pushed
uphill by another vehicle to relieve
the parking pawl pressure, so
you can shift out of P (Park).Shifting Out of Park
(Automatic
Transmission)
This vehicle is equipped with an
electronic shift lock release system.
The shift lock release is designed to:
Prevent ignition key removal
unless the shift lever is in P (Park)
with the shift lever button fully
released, and
Prevent movement of the shift
lever out of P (Park) unless
the ignition is in ON/RUN or
ACC/ACCESSORY and the
regular brake pedal is applied.
The shift lock release is always
functional except in the case of
a an uncharged or low voltage
(less than 9 volt) battery.
If the vehicle has an uncharged
battery or a battery with low voltage,
try charging or jump starting the
battery. SeeJump Starting on
page 5-34for more information.To shift out of P (Park):
1. Apply the brake pedal.
2. Then press the shift lever button.
3. Move the shift lever to the
desired position.
If you still are unable to shift out
of P (Park):
1. Fully release the shift lever
button.
2. While holding down the brake
pedal, press the shift lever
button again.
3. Move the shift lever to the
desired position.
If you still cannot move the shift
lever from P (Park), consult your
dealer/retailer or a professional
towing service.
2-30 Features and Controls

Parking the Vehicle
(Manual Transmission)
If the vehicle has a manual
transmission, before you get out of
the vehicle, move the shift lever
into R (Reverse), and rmly apply
the parking brake. Once the
shift lever has been placed into
R (Reverse) with the clutch pedal
pressed in, turn the ignition key
to LOCK/OFF, remove the key and
release the clutch.
If you are parking on a hill, or if the
vehicle is pulling a trailer, see
Towing a Trailer on page 4-42.
Parking Over Things
That Burn
{CAUTION
Things that can burn could touch
hot exhaust parts under the
vehicle and ignite. Do not park
over papers, leaves, dry grass, or
other things that can burn.
Engine Exhaust
{CAUTION
Engine exhaust contains Carbon
Monoxide (CO) which cannot be
seen or smelled. Exposure to CO
can cause unconsciousness and
even death.
Exhaust may enter the vehicle if:
The vehicle idles in areas
with poor ventilation (parking
garages, tunnels, deep snow
that may block underbody
airow or tail pipes).
The exhaust smells or
sounds strange or different.
The exhaust system leaks
due to corrosion or damage.
(Continued)
CAUTION (Continued)
The vehicle’s exhaust system
has been modied, damaged
or improperly repaired.
There are holes or openings
in the vehicle body from
damage or after-market
modications that are not
completely sealed.
If unusual fumes are detected or if
it is suspected that exhaust is
coming into the vehicle:
Drive it only with the windows
completely down.
Have the vehicle repaired
immediately.
Never park the vehicle with the
engine running in an enclosed
area such as a garage or a
building that has no fresh air
ventilation.
Features and Controls 2-31

Running the Vehicle
While Parked
It is better not to park with the
engine running. But if you ever have
to, here are some things to know.
{CAUTION
Idling a vehicle in an enclosed
area with poor ventilation is
dangerous. Engine exhaust may
enter the vehicle. Engine exhaust
contains Carbon Monoxide (CO)
which cannot be seen or smelled.
It can cause unconsciousness
and even death. Never run the
engine in an enclosed area that
has no fresh air ventilation.
For more information, seeEngine
Exhaust on page 2-31.
{CAUTION
It can be dangerous to get out
of the vehicle if the automatic
transmission shift lever is not fully
in P (Park) with the parking brake
rmly set. The vehicle can roll.
Do not leave the vehicle when the
engine is running unless you have
to. If you have left the engine
running, the vehicle can move
suddenly. You or others could be
injured. To be sure the vehicle will
not move, even when it is on
fairly level ground, always set
the parking brake and move the
automatic transmission shift lever
to P (Park), or the manual
transmission shift lever to Neutral.Follow the proper steps to be
sure the vehicle will not move.
SeeShifting Into Park (Automatic
Transmission) on page 2-29
andParking the Vehicle (Manual
Transmission) on page 2-31.
If pulling a trailer, seeTowing a
Trailer on page 4-42.
2-32 Features and Controls

When programming a garage door,
park outside of the garage. Park
directly in line with and facing
the garage door opener motor-head
or gate motor-head. Be sure that
people and objects are clear of
the garage door or gate you are
programming.
It is recommended that a new
battery be installed in the hand-held
transmitter for quicker and more
accurate transmission of the
radio-frequency signal.
Programming the Universal
Home Remote System
If you have questions or need help
programming the Universal
Home Remote System, call
1-800-355-3515 or go to
www.homelink.com.
Programming a garage door opener
involves time-sensitive actions, so
read the entire procedure before you
begin. If you do not follow these
actions, the device times out and you
have to repeat the procedure.To program up to three devices:
1. From inside the vehicle, press
and hold down the two outside
buttons at the same time,
releasing only when the Universal
Home Remote indicator light
begins to ash, after 20 seconds.
This step erases the factory
settings or all previously
programmed buttons.
Do not hold down the buttons for
longer than 30 seconds and
do not repeat this step to
program the remaining two
Universal Home Remote buttons.2. Hold the end of the hand-held
transmitter about 1 to 3 inches
(3 to 8 cm) away from the
Universal Home Remote buttons
while keeping the indicator
light in view. The hand-held
transmitter was supplied by the
manufacturer of the garage
door opener receiver (motor
head unit).
3. At the same time, press and hold
both the Universal Home Remote
button that you would like to
use to control the garage door
and the hand-held transmitter
button. Do not release the
Universal Home Remote button
or the hand-held transmitter
button until Step 4 has been
completed.
Some entry gates and garage
door openers may require you to
substitute Step 3 with the
procedure noted in “Gate
Operator and Canadian
Programming” later in this
section.
2-44 Features and Controls

Gate Operator and Canadian
Programming
If you have questions or need help
programming the Universal
Home Remote System, call
1-800-355-3515 or go to
www.homelink.com.
Canadian radio-frequency laws
require transmitter signals to time
out or quit after several seconds of
transmission. This may not be
long enough for Universal Home
Remote to pick up the signal
during programming. Similarly,
some U.S. gate operators are
manufactured to time out in the
same manner.
If you live in Canada, or you are
having difficulty programming a gate
operator or garage door opener
by using the “Programming
Universal Home Remote”procedures, regardless of where
you live, replace Step 3 under
“Programming Universal Home
Remote” with the following:
Continue to press and hold the
Universal Home Remote button
while you press and release every
two seconds (cycle) the hand-held
transmitter button until the frequency
signal has been successfully
accepted by the Universal Home
Remote. The Universal Home
Remote indicator light ashes slowly
at rst and then rapidly. Proceed
with Step 4 under “Programming
Universal Home Remote” to
complete.
Using Universal Home Remote
Press and hold the appropriate
Universal Home Remote button
for at least half of a second.
The indicator light comes on while
the signal is being transmitted.
Erasing Universal Home
Remote Buttons
Erase the programmed buttons when
you sell or terminate your lease.
To erase all programmed buttons on
the Universal Home Remote device:
1. Press and hold down the
two outside buttons until the
indicator light begins to ash,
after 20 seconds.
2. Release both buttons.
2-46 Features and Controls

Instrument Panel Overview
Automatic Transmission shown, Manual Transmission similar
3-4 Instrument Panel