light HUMMER H3 2010 User Guide

2-8 Keys, Doors and Windows
2. Lift up slightly on the entiretailgate assembly.
Remove the retaining cables
from both sides of the pickup
box by pulling the clips away
from the bolt heads while
pushing the cable bracket
forward. When the larger part of
the hole on the bracket is over
the bolt, slide the bracket off of
the bolt.
3. With the tailgate partially down, lift up on the passenger's side
and pull the tailgate toward you,
then move the tailgate to the
right to release the driver's side.
Reverse the procedure to reinstall
the tailgate. Make sure it is secure. To partially lower the tailgate:
1. With the tailgate fully open, lift
up slightly on the entire tailgate
assembly.
Tailgate Partially Down
2. Remove the retaining cable from the passenger side of the pickup
box by pulling the clip away from
the bolt head while pushing the
cable bracket forward.
When the larger part of the hole
on the bracket is over the bolt,
slide the bracket off of the bolt. 3. Slide the lower end fitting onto
the front bolt. The tailgate will
now stay in the partially opened
position.
4. Repeat Steps 2 and 3 for the driver side.
When closing the tailgate the
bracket cannot be in the partially
opened position. It must be
anchored on the rear bolt using
the top position on the bracket.
Swing-gate (H3)
To lock or unlock the swing‐gate,
use the power door lock switch or
the Remote Keyless Entry (RKE)
transmitter.
{WARNING
Make sure the swing‐gate is
completely closed. Driving with
the swing‐gate open could injure
pedestrians or damage the
vehicle.

Keys, Doors and Windows 2-9
To open the swing‐gate, use the
door handle to pull the swing-gate
rearward slightly so it opens
automatically.
Vehicle Security
Vehicle theft is big business,
especially in some cities. This
vehicle has theft-deterrent features,
however, they do not make it
impossible to steal.
Anti-Theft Alarm System
This vehicle has a content
theft-deterrent alarm system.
The security light is located on the
instrument panel cluster.
To arm the system:
1. Close all the doors.
2. Lock the doors with the RemoteKeyless Entry (RKE) transmitter.
The security light flashes. If the lock button on the RKE
transmitter is pressed, but a door is
open, the doors lock, the lights may
flash and the horn may sound.
Close the open door to arm the
system.
The alarm goes off if a locked door
is not opened using the RKE
transmitter, or by OnStar
®.
A pre-alarm sounds the horn at
reduced intensity for 10 seconds.
Then, the front turn signal lamps
flash for two minutes, and the horn
sounds for two minutes. The alarm
then turns off to save battery power.
Start the engine to turn off the
alarm.
The theft-deterrent system does
not activate if the doors are locked
with the key, the manual door lock,
or power door lock switch. The
system can only be activated using
the RKE transmitter, or by OnStar.
See the OnStar Owner's Guide for
additional information. The vehicle
can be started with the correct key if
the alarm has been set off.

2-10 Keys, Doors and Windows
To avoid setting off the alarm by
accident:
.Lock the vehicle with the manual
door lock lever, the power door
lock switch, or the key, after the
doors are closed.
.Unlock the doors by pressing
the unlock button on the RKE
transmitter or by contacting
OnStar. Unlocking a door any
other way activates the alarm.
Press unlock on the RKE
transmitter, start the vehicle with
the correct key, or have OnStar
unlock the doors to turn the alarm
off. The alarm does not stop if a
door is unlocked any other way.
Testing the Alarm
To test the alarm:
1. From inside the vehicle, lock the doors with the RKE transmitter.
2. Unlock the door with the manual door lock and open the door.
The pre-alarm should sound
followed by the full alarm about
10 seconds later.
3. Press the unlock button on the RKE transmitter or start the
engine to turn the alarm off.
If the alarm does not sound but the
lights flash, check to see if the horn
works. The horn fuse could be
blown. To replace the fuse, see
Fuses and Circuit Breakers
on
page 10‑39.
If the alarm does not sound or the
front turn signal lamps do not flash,
see your dealer for service.
Immobilizer
See Radio Frequency Statementon
page 13‑16for information
regarding Part 15 of the Federal
Communications Commission (FCC)
Rules and RSS-210/211 of Industry
Canada.
Immobilizer
Operation (U.S.)
Passlock®is a passive
theft-deterrent system that enables
fuel if the vehicle is started with a
valid key. If an incorrect key is used
or the ignition lock cylinder is
tampered with, the fuel system is
disabled and the vehicle does not
start.
The security light turns off
approximately five seconds after
the engine is started. See Security
Light on page 5‑17.

Keys, Doors and Windows 2-11
If the engine stalls and the security
light flashes, wait about 10 minutes
until the light stops flashing before
trying to restart the engine. Release
the key from START as soon as the
engine starts.
If the engine does not start after
three tries, the vehicle needs
service.
If the engine is running and the
security light comes on, the engine
restarts if you turn the engine off.
However, the Passlock system is
not working properly and must be
serviced by your dealer. The vehicle
is not protected by Passlock at this
time. See your dealer for service.In an emergency, call the Roadside
Assistance Center. See
Roadside
Service on page 13‑5.
Do not leave the key or device that
disarms or deactivates the theft
deterrent system in the vehicle.
Immobilizer Operation
(Canada)
This vehicle has a passive
theft-deterrent system.
The system is automatically armed
when the key is removed from the
ignition.
The system is automatically
disarmed when the key is turned
to ON/RUN. You do not have to manually arm or
disarm the system.
The security light comes on if
there is a problem with arming or
disarming the theft-deterrent
system.
The key uses a transponder that
matches an immobilizer control unit
in the vehicle. Only the correct key
starts the vehicle. If the key is ever
damaged, the vehicle may not start.
When trying to start the vehicle,
if the engine does not start and the
security light comes on, there may
be a problem with the theft-deterrent
system. Turn the ignition off and try
again.

2-12 Keys, Doors and Windows
If the engine still does not start, and
the key appears to be undamaged,
try another ignition key. Check the
fuse. SeeFuses and Circuit
Breakers
on page 10‑39. If the
engine still does not start with the
other key, the vehicle needs service.
If the vehicle does start, the first key
may be faulty. See your dealer who
can service the theft-deterrent
system and have a new key made.
It is possible for the theft-deterrent
system decoder to learn the
transponder value of a new or
replacement key. Up to 10 keys
can be programmed for the vehicle.
The following procedure is for
programming additional keys only.
If the keys are lost or damaged,
only a dealer can service the
theft-deterrent system to have new
ones made. Two current driver's
keys are required to program
additional keys. To program a new key:
1. Verify that the new key has
PK3+ stamped on it.
2. Insert the current driver's key in the ignition and start the engine.
If the engine does not start see
your dealer for service.
3. After the engine has started, turn the key to LOCK/OFF, and
remove the key.
4. Insert the second current driver's key in the ignition and start the
engine within ten seconds of
removing the previous key. If the
engine does not start see your
dealer for service. 5. After the engine has started,
turn the key to LOCK/OFF, and
remove the key. Insert the key to
be programmed and turn it to
ON/RUN within ten seconds of
removing the previous key.
The security light turns off once
the key has been programmed.
6. Repeat the Steps 1 through 5 if additional keys are to be
programmed.
If the security light comes on
and stays on while driving, the
engine will restart if you turn it off.
However, the theft-deterrent
system is not working properly and
must be serviced by your dealer.
The vehicle is not protected by the
theft-deterrent system at this time.
In an emergency, contact Roadside
Assistance. See Roadside Service
on page 13‑5.
Do not leave the key or device that
disarms or deactivates the theft
deterrent system in the vehicle.

2-14 Keys, Doors and Windows
Interior Mirrors
Automatic Dimming
Rearview Mirror
The vehicle has an automatic
dimming rearview mirror with a
compass and temperature display.
Vehicles with OnStar
®have
three additional control buttons
for the OnStar
®system. See your
dealer for more information about
OnStar
®and how to subscribe to it.
See the OnStar®owner guide for
more information about the services
OnStar
®provides.
z(On/Off): Press to turn the
dimming feature on or off.
The vehicle may also have a Rear
Vision Camera (RVC). See Rear
Vision Camera (RVC)
on page 9‑60for more information.
Automatic Dimming Mirror
Operation
Automatic dimming reduces the
glare from the headlamps of the
vehicle behind you. The dimming
feature comes on and the indicator
light illuminates each time the
ignition is turned to start.
Temperature Display
To adjust between Fahrenheit and
Celsius:
.Presszfor approximately
four seconds to toggle the
display from F (Fahrenheit)
to C (Celsius) to OFF. Release
the button after the display has
toggled to the next state.
The temperature display will
remain in its current state each
time the ignition goes through its
cycle.
.At start up, if the vehicle has
been off for less than two and
a half hours, and the last stored
temperature was less than
the current temperature, the
sensor will increase 1°F every
two minutes until the correct
temperature is displayed.
.If the vehicle has been off more
than two and a half hours, or
the last stored temperature
is greater than the current
temperature, the current
temperature immediately
displays.
.If the temperature is 37°F (3°C)
or lower, ICE will flash on the
temperature display. This display
will flash every two seconds for a
period of one minute.
If an abnormal temperature reading
is displayed for an extended period
of time, see your dealer. Under
certain circumstances, a delay in
updating the temperature is normal.

Seats and Restraints 3-9
Rear Seats (H3T)
Notice:Folding a rear seat with
the safety belts still fastened may
cause damage to the seat or the
safety belts. Always unbuckle the
safety belts and return them to
their normal stowed position
before folding a rear seat.
To fold the rear seatback(s) forward:
1. Disconnect the rear center safety belt latch from the mini
buckle by inserting the tip of the
safety belt into the slot on the
buckle. Let the belt retract.
2. Pull the loop, located on theoutboard side of the seatback,
forward until you hear a click.
3. Fold the seatback forward slightly so that the headrest can
be removed.4. Remove the headrest bypressing the button on the
headrest post, at the top of the
seatback.
5. Lift the headrest off the seatback and store on the back panel.

Seats and Restraints 3-21
2. Pick up the latch plate and pullthe belt across you. Do not let it
get twisted. The lap-shoulder belt may lock if
you pull the belt across you very
quickly. If this happens, let the
belt go back slightly to unlock it.
Then pull the belt across you
more slowly.
If the shoulder portion of a
passenger belt is pulled out
all the way, the child restraint
locking feature may be engaged.
If this happens, let the belt go
back all the way and start again.
Engaging the child restraint
locking feature in the right front
seating position may affect the
passenger sensing system. See
Passenger Sensing System
on
page 3‑35for more information.
3. Push the latch plate into the buckle until it clicks.
Pull up on the latch plate to
make sure it is secure. If the belt
is not long enough, see Safety
Belt Extender
on page 3‑26.
Position the release button on
the buckle so that the safety belt
could be quickly unbuckled if
necessary.

3-26 Seats and Restraints
The best way to protect the fetus is
to protect the mother. When a safety
belt is worn properly, it is more likely
that the fetus will not be hurt in a
crash. For pregnant women, as for
anyone, the key to making safety
belts effective is wearing them
properly.
Safety Belt Extender
If the vehicle's safety belt will fasten
around you, you should use it.
But if a safety belt is not long
enough, your dealer will order you
an extender. When you go in to
order it, take the heaviest coat you
will wear, so the extender will be
long enough for you. To help avoid
personal injury, do not let someone
else use it, and use it only for the
seat it is made to fit. The extender
has been designed for adults.
Never use it for securing child seats.
To wear it, attach it to the regular
safety belt. For more information,
see the instruction sheet that comes
with the extender.
Safety System Check
Now and then, check that the safety
belt reminder light, safety belts,
buckles, latch plates, retractors and
anchorages are 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
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 5‑9for more
information.
Keep safety belts clean and dry.
See Safety Belt Care
on
page 3‑26.
Safety Belt Care
Keep belts clean and dry.
{WARNING
Do not bleach or dye safety belts.
It may severely weaken them.
In a crash, they might not be able
to provide adequate protection.
Clean safety belts only with mild
soap and lukewarm water.

Seats and Restraints 3-27
Replacing Safety Belt
System Parts After a
Crash
{WARNING
A crash can damage the safety
belt system in the vehicle.
A damaged safety belt system
may not properly protect the
person using it, resulting in
serious injury or even death in a
crash. To help make sure the
safety belt systems are working
properly after a crash, have them
inspected and any necessary
replacements made as soon as
possible.After a minor crash, replacement of
safety belts may not be necessary.
But the safety belt assemblies that
were used during any crash may
have been stressed or damaged.
See your dealer to have the safety
belt assemblies inspected or
replaced.
New parts and repairs may be
necessary even if the safety belt
system was not being used at the
time of the crash.
Have the safety belt pretensioners
checked if the vehicle has been in a
crash, or if the airbag readiness light
stays on after you start the vehicle
or while you are driving. See
Airbag
Readiness Light on page 5‑10.
Airbag System
The vehicle has the following
airbags:
.A frontal airbag for the driver.
.A frontal airbag for the right front
passenger.
.A roof-rail airbag for the driver
and the passenger seated
directly behind the driver.
.A roof-rail airbag for the right
front passenger and the
passenger seated directly
behind the right front passenger.
All of the airbags in the vehicle will
have the word AIRBAG embossed
in the trim or on an attached label
near the deployment opening.
For frontal airbags, the word
AIRBAG will appear on the middle
part of the steering wheel for the
driver and on the instrument panel
for the right front passenger.
With roof-rail airbags, the word
AIRBAG will appear along the
headliner or trim.