2010 HUMMER H3 alarm

1-4 In Brief
Remote Keyless Entry
(RKE) System
The RKE transmitter is used to
remotely lock and unlock the doors
from up to 9 m (30 feet) away from
the vehicle.
Press UNLOCK to unlock the
driver door. Press again within
three seconds to unlock all
remaining doors.Press LOCK to lock all doors.
Lock and unlock feedback can be
personalized.
Press
Lto sound the horn and
to flash the exterior lamps for
30 seconds. Press
Lagain to
cancel the panic alarm.
See Remote Keyless Entry (RKE)
System Operation on page 2‑3.
Door Locks
Unlock the doors from outside the
vehicle by using the key in the door,
or by pressing the UNLOCK button
on the Remote Keyless Entry (RKE)
transmitter.
From inside, use the manual lock
lever, or the power door lock switch.

Keys, Doors and Windows 2-1
Keys, Doors and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . 2-3
Door Locks . . . . . . . . . . . . . . . . . . . 2-4
Power Door Locks . . . . . . . . . . . . 2-5
Automatic Door Locks . . . . . . . . . 2-6
Lockout Protection . . . . . . . . . . . . 2-6
Safety Locks . . . . . . . . . . . . . . . . . . 2-6
Doors
Tailgate . . . . . . . . . . . . . . . . . . . . . . . 2-7
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . 2-9
Anti-Theft Alarm System . . . . . . 2-9
Immobilizer . . . . . . . . . . . . . . . . . . 2-10
Immobilizer Operation (U.S.) . . . . . . . . . . . . 2-10
Immobilizer Operation (Canada) . . . . . . . . . . . . . . . . . . . 2-11
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 2-13
Power Mirrors . . . . . . . . . . . . . . . . 2-13
Folding Mirrors . . . . . . . . . . . . . . . 2-13
Interior Mirrors
Automatic Dimming RearviewMirror . . . . . . . . . . . . . . . . . . . . . . . 2-14
Windows
Windows . . . . . . . . . . . . . . . . . . . . . 2-15
Power Windows . . . . . . . . . . . . . 2-16
Sun Visors . . . . . . . . . . . . . . . . . . . 2-17
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . 2-17

Keys, Doors and Windows 2-3
If there is a decrease in the RKE
operating range:
.Check the distance.
The transmitter may be
too far from the vehicle.
.Check the location. Other
vehicles or objects may be
blocking the signal.
.Check the transmitter's battery.
See“Battery Replacement” later
in this section.
.If the transmitter is still not
working correctly, see your
dealer or a qualified technician
for service.
Remote Keyless Entry
(RKE) System Operation
The Remote Keyless Entry (RKE)
transmitter functions work up to 9 m
(30 feet) away from the vehicle.
There are other conditions which
can affect the performance of the
transmitter. See Remote Keyless
Entry (RKE) System on page 2‑2.
LOCK: Press to lock all the doors.
The parking lamps may flash and
the horn may chirp.
If a door is open or ajar when LOCK
is pressed, the doors lock, but the
theft-deterrent system does not arm
until the open door is closed.
Pressing LOCK may arm the
content theft-deterrent system.
See Anti-Theft Alarm System
on
page 2‑9for additional information. UNLOCK:
Press to unlock only the
driver's door. The interior lamps
come on, the parking lamps may
flash, and the horn may sound.
Press UNLOCK again within
three seconds to unlock all the
doors.
Pressing UNLOCK may disarm the
content theft-deterrent system.
See Anti-Theft Alarm System
on
page 2‑9for additional information.
Different feedback choices can be
programmed through the Driver
Information Center (DIC). See
“Remote Keyless Entry Feedback”
under Driver Information Center
(DIC) on page 5‑18.
L (Panic): Press to activate the
alarm. The horn sounds and the
headlamps and taillamps flash for
up to 30 seconds. To turn the alarm
off press Lagain, start the vehicle
or wait 30 seconds.

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.

Instruments and Controls 5-17
Engine Oil Pressure Light
{WARNING
Do not keep driving if the oil
pressure is low. The engine can
become so hot that it catches fire.
Someone could be burned. Check
the oil as soon as possible and
have the vehicle serviced.
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 briefly as the engine is started.
If it does not come on have the
vehicle serviced by your dealer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might
have some other system problem.
See your dealer.
Security Light
This light flashes when the security
system is activated.
For more information, see Anti-Theft
Alarm System on page 2‑9.
High-Beam on Light
The high-beam on light comes on
when the high-beam headlamps are
in use.
See Headlamp High/Low-Beam
Changer
on page 6‑3for more
information.

INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-3
Accessory Power . . . . . . . . . . . . . . 9-35
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . . 9-81
Adding Equipment to the
Airbag-Equipped Vehicle . . . . . 3-40
Adjustments Lumbar, Front Seats . . . . . . . . . . . 3-4
Air Cleaner/Filter, Engine . . . . . 10-17
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-4
Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . 3-41
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . 3-32
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . 3-35
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-32 Airbag System (cont.)
What Will You See After
an Airbag Inflates? . . . . . . . . . . 3-33
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-31
Where Are the Airbags? . . . . . . 3-29
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-40
Passenger Status Indicator . . . 5-11
Readiness Light . . . . . . . . . . . . . . 5-10
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 3-40
System Check . . . . . . . . . . . . . . . . 3-27
Alarm System Anti-Theft . . . . . . . . . . . . . . . . . . . . . . 2-9
AM-FM Radio . . . . . . . . . . . . . . . . . . . 7-5
Antenna Satellite Radio . . . . . . . . . . . . . . . . 7-10
Anti-Theft Alarm System . . . . . . . . . . . . . . . . . 2-9 Antilock Brake
System (ABS) . . . . . . . . . . . . . . . . 9-50
Warning Light . . . . . . . . . . . . . . . . . 5-15
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . 10-92
Interior . . . . . . . . . . . . . . . . . . . . . . 10-96
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Audio Players . . . . . . . . . . . . . . . . . 7-10
CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Audio System Fixed Mast Antenna . . . . . . . . . . 7-10
Radio Reception . . . . . . . . . . . . . . . 7-9
Theft-Deterrent Feature . . . . . . . . 7-2
Automatic Door Locks . . . . . . . . . . . . . . . . . . . . 2-6
Headlamp System . . . . . . . . . . . . . 6-4
Automatic Transmission . . . . . . . 9-41 Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-12
Shiftlock Control SystemCheck . . . . . . . . . . . . . . . . . . . . . 10-30
Axle
Locking Front . . . . . . . . . . . . . . . . . 9-55
Axle, Front . . . . . . . . . . . . . . . . . . . . 10-29
Axle, Rear . . . . . . . . . . . . . . . . . . . . 10-29