service HUMMER H3 2009 User Guide

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/retailer.
The vehicle is not protected by
Passlock
®at this time. See
your dealer/retailer for service.
In an emergency, call the Roadside
Assistance Center. SeeRoadside
Service on page 7-6.
Do not leave the key or device that
disarms or deactivates the theft
deterrent system in the vehicle.
PASS-Key®III+ Electronic
Immobilizer
The PASS-Key III+ system
operates on a radio frequency
subject to Federal Communications
Commission (FCC) Rules and
with Industry Canada.
This device complies with Part 15
of the FCC Rules. Operation
is subject to the following
two conditions:
1. This device may not cause
harmful interference.
2. This device must accept any
interference received, including
interference that may cause
undesired operation.This device complies with RSS-210
of Industry Canada. Operation
is subject to the following
two conditions:
1. This device may not cause
interference.
2. This device must accept any
interference received, including
interference that may cause
undesired operation of the
device.
Changes or modications to
this system by other than an
authorized service facility could void
authorization to use this equipment.
PASS-Key III+ uses a radio
frequency transponder in the key that
matches a decoder in the vehicle.
Features and Controls 2-13

PASS-Key®III+ Electronic
Immobilizer Operation
(Canada Only)
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.
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 5-91. If the engine
still does not start with the other
key, the vehicle needs service.
If the vehicle does start, the rst
key may be faulty. See your
dealer/retailer 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.Canadian Owners:If the keys
are lost or damaged, only a
dealer/retailer 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/retailer 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/retailer for service.
2-14 Features and Controls

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/retailer.
The vehicle is not protected by the
theft-deterrent system at this time.
In an emergency, contact Roadside
Assistance. SeeRoadside Service
on page 7-6.
Do not leave the key or device that
disarms or deactivates the theft
deterrent system in the vehicle.Starting and
Operating Your
Vehicle
New Vehicle Break-In
Notice:The vehicle does
not need an elaborate break-in.
But it will perform better in
the long run if you follow these
guidelines:
Keep your speed at 55 mph
(88 km/h) or less for the
rst 500 miles (805 km).
Do not drive at any one
constant speed, fast or slow,
for the rst 500 miles (805 km).
Do not make full-throttle
starts. Avoid downshifting to
brake or slow the vehicle.
Avoid making hard stops for
the rst 200 miles (322 km)
or so. During this time the
new brake linings are not yet
broken in. Hard stops with new
linings can mean premature
wear and earlier replacement.
Follow this breaking-in
guideline every time you get
new brake linings.
Do not tow a trailer during
break-in. SeeTowing a
Trailer on page 4-42for the
trailer towing capabilities of the
vehicle and more information.
Following break-in, engine
speed and load can be gradually
increased.
Features and Controls 2-15

Ignition Positions
The ignition switch has four different
positions.
To shift out of P (Park), turn the
ignition to ON/RUN and apply
the regular brake pedal.Notice:Using a tool to force the
key to turn in the ignition could
cause damage to the switch or
break the key. Use the correct key,
make sure it is all the way in, and
turn it only with your hand. If the
key cannot be turned by hand, see
your dealer/retailer.
(A) LOCK/OFF:This position
locks the ignition. It also locks
the transmission on automatic
transmission vehicles. It locks
the steering wheel on manual
transmission vehicles. The key can
only be removed in LOCK/OFF.
On vehicles with an automatic
transmission, the shift lever must be
in P (Park) to turn the ignition
switch to LOCK/OFF.
The steering can bind with the
wheels turned off center. If this
happens, move the steering wheel
from right to left while turningthe key to ACC/ACCESSORY.
If this doesn’t work, then the vehicle
needs service.
(B) ACC/ACCESSORY:This is the
position in which you can operate
the electrical accessories or items
plugged into the accessory power
outlets. On automatic transmission
vehicles, this position unlocks
the ignition. On manual transmission
vehicles, it unlocks the ignition
and steering wheel. Use this position
if the vehicle must be pushed or
towed.
(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.
2-16 Features and Controls

Full-Time Four-Wheel
Drive
Full-Time Four-Wheel Drive sends
engine power to all four wheels
for extra traction. To get the most
out of Full-Time Four-Wheel Drive,
you must be familiar with its
operation.
Transfer Case Buttons
The transfer case buttons are
located to the right of the instrument
panel cluster. Use these switches to
shift into and out of the different
Full-Time Four-Wheel Drive modes.4
m(Four-Wheel High):This
setting is used for driving in most
street and highway situations.
You can also use this setting for
light or variable off-road conditions.
N (Neutral):Shift the transfer
case to Neutral only when towing
the vehicle. SeeRecreational
Vehicle Towing on page 4-40or
Towing Your Vehicle on page 4-40
for more information.
Notice:Driving on pavement in
Four-Wheel High Lock or Four
Wheel Low Lock for extended
periods may cause premature
wear on the vehicle powertrain
and tires. Do not drive in
Four-Wheel High Lock or
Four-Wheel Low Lock on
pavement for extended periods.
4
mQ(Four-Wheel-High Lock):
Use this setting when you need
extra traction in most off-road
situations such as sand, mud, snow
or level, rocky trails.Notice:Operating the vehicle in
Four-Wheel-Low Lock above
30 mph (48 km/h) for any
extended period of time could
cause damage to the transfer
case. Do not operate the vehicle
in Four-Wheel-Low Lock above
30 mph (48 km/h) for extended
periods.
4
nQ(Four-Wheel-Low Lock):
This setting delivers extra torque to
all four wheels and is used for
extreme off-road conditions.
If the vehicle has locking axles,
they can be locked for additional
traction in extreme off-road
situations. SeeLocking Rear Axle
on page 4-8andLocking Front Axle
on page 4-9.
Indicator lights in the buttons show
which setting the transfer case
is in. The indicator lights will come
on briey when the ignition is in
ON/RUN. The If the lights do
not come on, take the vehicle to
your dealer/retailer for service.
2-24 Features and Controls

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

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

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/retailer for more information
about OnStar
®and how to
subscribe to it. SeeOnStar®
System on page 2-39for 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). SeeRear
Vision Camera (RVC) on page 2-36
for 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 ash on the
temperature display. This display
will ash 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/retailer. Under certain
circumstances, a delay in updating
the temperature is normal.
Features and Controls 2-33

When the System Does Not Seem
To Work Properly
The rear vision camera system may
not work properly or display a
clear image:
In the dark.
When the sun or the beam of
headlamps is shining directly
into the camera lens.
If ice, snow, mud, or anything else
builds up on the camera lens.
Clean the lens, rinse it with water,
and wipe it with a soft cloth.
If the back of the vehicle is in an
accident, the position and
mounting angle of the camera
may change or the camera may
be affected. Be sure to have the
camera and its position and
mounting angle checked at your
dealer/retailer.
If there are extreme temperatures
or extreme temperature changes.The rear vision camera system
display in the rearview mirror may
turn off or not appear as expected
due to a loss of video signal, or
no video signal present during the
reverse cycle. The display will
be blank and the left indicator light
will slowly ash as long as the
vehicle is in R (Reverse) or until the
condition returns to normal.
Pressing and holding
zwhen the
left indicator light is ashing will
turn off the video display along with
the left indicator light.
OnStar®System
OnStar uses several innovative
technologies and live advisors to
provide a wide range of safety,
security, information, and
convenience services. If the airbags
deploy, the system is designed to
make an automatic call to OnStar
Emergency advisors who can
request emergency services be sent
to your location. If the keys are
locked in the vehicle, call OnStar
at 1-888-4-ONSTAR to have a
signal sent to unlock the doors.
OnStar Hands-Free Calling,
including 30 trial minutes good for
60 days, is available on most
vehicles. OnStar Turn-by-Turn
Navigation service, with one trial
route, is available on most vehicles.
Press the OnStar button to have
an OnStar advisor contact Roadside
Service.
Features and Controls 2-39

OnStar service is provided subject
to the OnStar Terms and Conditions
included in the OnStar Subscriber
glove box literature.
Some services such as Remote
Door Unlock or Stolen Vehicle
Location Assistance may not be
available until the owner of the
vehicle registers with OnStar.
After the rst prepaid year, contact
OnStar to select a monthly or
annual subscription payment plan.
If a payment plan is not selected,
the OnStar system and all services,
including airbag notication and
emergency services, may be
deactivated and no longer
available. For more information
visit onstar.com (U.S.) or onstar.ca
(Canada), or press the OnStar
button to speak with an advisor.
Not all OnStar services are available
on all vehicles. To check if this
vehicle is able to provide the
services described below, or for a
full description of OnStar servicesand system limitations, see the
OnStar Owner’s Guide in the
glove box or visit onstar.com (U.S.)
or onstar.ca (Canada), contact
OnStar at 1-888-4-ONSTAR
(1-888-466-7827) or TTY
1-877-248-2080, or press the
OnStar button to speak with an
OnStar advisor 24 hours a day,
7 days a week.
OnStar Services Available
with the Safe & Sound Plan

Automatic Notication of
Airbag Deployment
Advanced Automatic Crash
Notication (AACN) (If equipped)
Link to Emergency Services
Roadside Assistance
Stolen Vehicle Location
Assistance
Remote Door Unlock/Vehicle
Alert
OnStar Vehicle Diagnostic Email
GM Goodwrench On Demand
Diagnostics
OnStar Hands-Free Calling with
30 trial minutes
OnStar Virtual Advisor (U.S. Only)
OnStar Services Included with
Directions & Connections Plan

All Safe and Sound Plan Services
OnStar Turn-by-Turn Navigation
(If equipped) or Driving
Directions - Advisor delivered
RideAssist
Information and Convenience
Services
OnStar Hands-Free Calling
OnStar Hands-Free Calling allows
eligible OnStar subscribers to
make and receive calls using voice
commands. Hands-Free Calling
is fully integrated into the vehicle,
and can be used with OnStar
Pre-Paid Minute Packages.
2-40 Features and Controls