2007 HUMMER H2 service

Here is how to avoid setting off the alarm
by accident:
If you do not want to activate the
theft-deterrent system, the vehicle should be
locked with the door keyafterthe doors
are closed.
Always unlock a door with a key, or use the
remote keyless entry transmitter. Unlocking
a door any other way will set off the alarm.
If you set off the alarm by accident, unlock any
door with the key. You can also turn off the alarm
by pressing unlock on the remote keyless entry
transmitter. The alarm will not stop if you try
to unlock a door any other way.
Testing the Alarm
The alarm can be tested by following these steps:
1. From inside the vehicle, lower the driver’s
window and open the driver’s door.
2. Activate the system by locking the doors with
the power door lock switch while the door is
open, or with the remote keyless entry
transmitter.
3. Get out of the vehicle, close the door and wait
for the security light to go out.
4. Then reach in through the window, unlock the
door with the manual door lock and open the
door. This should set off the alarm.
While the alarm is set, the power door unlock
switch is not operational.
If the alarm does not sound when it should but the
headlamps ash, check to see if the horn works.
The horn fuse may be blown. To replace the fuse,
seeInstrument Panel Fuse Block on page 504
andUnderhood Fuse Block on page 507.
If the alarm does not sound or the headlamps do
not ash, the vehicle should be serviced by
your dealer.
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Passlock®
Your vehicle is equipped with the Passlock®
theft-deterrent system.
Passlock
®is a passive theft-deterrent system.
Passlock®enables fuel if the ignition lock cylinder
is turned with a valid key. If a correct key is not
used or the ignition lock cylinder is tampered with,
the fuel system is disabled and the vehicle will
not start.
During normal operation, the security light will turn
off approximately ve seconds after the key is
turned to RUN.
If the engine stalls and the security light ashes,
wait about 10 minutes until the light stops
ashing before trying to restart the engine.
Remember to 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, you will be able to restart the engine if you turn
the engine off. However, your Passlock
®system is
not working properly and must be serviced by your
dealer. Your vehicle is not protected by Passlock
®
at this time. You may also want to check the fuse.
SeeInstrument Panel Fuse Block on page 504and
Underhood Fuse Block on page 507. See your
dealer for service.
In an emergency, call the Roadside Assistance
Center. SeeRoadside Assistance Program
on page 542.
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Ignition Positions
Use the key to turn the ignition switch to
four different positions.
A (LOCK):This position locks the ignition and
transmission. It is a theft-deterrent feature. You will
only be able to remove the key when the ignition
is turned to LOCK.Notice:Using a tool to force the key from the
ignition switch could cause damage or break
the key. Use the correct key and turn the key
only with your hand. Make sure the key is all the
way in. If it is, turn the steering wheel left and
right while you turn the key hard. If none of this
works, then your vehicle needs service.
B (ACCESSORY):This position lets you use
things like the radio and the windshield wipers
when the engine is off.
Lengthy operation of features such as the radio in
the accessory ignition position and the RUN
position may drain the battery and prevent your
vehicle from starting. Do not operate your vehicle
in the accessory ignition position for a long
period of time.
C (RUN):This is the position for driving. It is the
position the switch returns to after the engine
starts, and you release the key.
The battery could be drained if you leave the key
in the ACCESSORY or RUN position with the
engine off. You may not be able to start your
vehicle if the battery is allowed to drain for
an extended period of time.
D (START):This position starts the engine.
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Indicator lights in the buttons show which mode you
are in. The indicator lights will come on briey when
you turn on the ignition and one will stay on. If the
lights do not come on, you should take your vehicle
to your dealer for service. An indicator light will ash
while shifting the transfer case. It will remain on
when the shift is complete. If for some reason the
transfer case cannot make a requested shift, it will
return to the last chosen setting.
If the SERVICE 4WD message stays on, you
should take your vehicle to your dealer for service.
See “Service 4WD message” underDriver
Information Center (DIC) on page 222.
Shifting between Four-Wheel High and
Four-Wheel-High Lock
With the vehicle traveling less than 40 mph
(64 km/h), press and release the Four-Wheel High
or Four-Wheel-Low Lock button. The indicator
light will ash while shifting. It will remain on when
the shift is complete.
It may be necessary to drive backwards for a
short distance of 25 feet (7.5 m) to get the lock
feature to disengage.
Shifting into Four-Wheel-Low Lock
To shift into Four-Wheel-Low Lock, the ignition
must be in RUN and the vehicle must be stopped or
moving less than 3 mph (5 km/h) with the
transmission in NEUTRAL (N). The preferred
method for shifting into Four-Wheel Low is to have
your vehicle moving 1 to 2 mph (1.6 to 3.2 km/h).
Press and release the Four-Wheel-Low Lock
button. You must wait for the Four-Wheel-Low Lock
indicator light to stop ashing and remain lit before
shifting your transmission in gear.
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.
It is normal for your vehicle to have engagement
noise and bump when shifting between
Four-Wheel Low and Four-Wheel High or
Four-Wheel-High Lock ranges or from NEUTRAL
with the engine running.
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Outside Automatic Dimming Mirror
with Curb View Assist
If the vehicle has this feature, the driver’s outside
mirror adjusts for the glare of the headlamps behind
you. SeeAutomatic Dimming Rearview Mirror with
Compass and Temperature Display on page 139.
The vehicle’s outside mirrors can also perform a
curb view assist mirror function. This causes
the passenger’s and/or driver’s mirror to tilt to a
preselected position when the vehicle is in
REVERSE (R). This feature may be useful in
viewing the curb when parallel parking.
When the vehicle is shifted out of REVERSE (R)
and a short delay has occurred, the passenger’s
and/or driver’s mirror will return to its original
position.
To change the preselected tilt position, adjust the
mirrors to the desired position while the vehicle
is in REVERSE (R). When the vehicle is shifted out
of REVERSE (R), this new position is saved in
memory as the tilt position.
This feature can be enabled/disabled through the
Driver Information Center. SeeDIC Vehicle
Customization on page 234for more information.
OnStar®System
OnStar®uses several innovative technologies and
live advisors to provide you with a wide range
of safety, security, information, and convenience
services. If your 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 you lock
your keys in the vehicle, call OnStar
®at
1-888-4-ONSTAR and they can send a signal to
unlock your doors. If you need roadside
assistance, press the OnStar
®button and they
can contact Roadside Service for you.
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OnStar®service is provided to you subject to the
OnStar®Terms and Conditions. You may
cancel your OnStar®service at any time by
contacting OnStar®as provided below. A complete
OnStar®Owners Guide and the OnStar®Terms
and Conditions are included in the vehicle’s
OnStar
®Subscriber glove box literature. For more
information, visit onstar.com or onstar.ca,
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.
Not all OnStar
®features are available on all
vehicles. To check if your vehicle is equipped to
provide the services described below, or for a
full description of OnStar
®services and system
limitations, see the OnStar®Owner’s Guide in your
glove box or visit onstar.com.
OnStar®Services
For new vehicles with OnStar®, the Safe & Sound
Plan, or the Directions & Connections®Plan is
included for one year from the date of purchase.
You can extend this plan beyond the rst year,
or upgrade to the Directions & Connections
®Plan.
For more information, press the OnStar®button
to speak with an advisor. Some OnStar®services
(such as Remote Door Unlock or Stolen Vehicle
Location Assistance) may not be available
until you register with OnStar
®.
145

Available Services with 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
AccidentAssist
Remote Door Unlock/Vehicle Alert
OnStar®Vehicle Diagnostics
GM Goodwrench®On Demand Diagnostics
OnStar®Hands-Free Calling with
30 complimentary minutes
OnStar®Virtual Advisor (U.S. Only)
Available Services included with
Directions & Connections®Plan

All Safe and Sound Plan Services
Driving Directions - Advisor delivered or
OnStar®Turn-by-Turn Navigation (If equipped)
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.
Hands-Free Calling may also be linked to a
Verizon Wireless service plan in the U.S. or a Bell
Mobility service plan in Canada, depending on
eligibility. To nd out more, refer to the OnStar
®
Owners Guide in the vehicle’s glove box, visit
www.onstar.com or www.onstar.ca, or speak with
an OnStar
®advisor by pressing the OnStar®
button or calling 1-888-4-ONSTAR
(1-888-466-7827).
OnStar®Virtual Advisor
OnStar®Virtual Advisor is a feature of OnStar®
Hands-Free Calling that uses your minutes to
access location-based weather, local traffic reports,
and stock quotes. By pressing the phone button
and giving a few simple voice commands, you can
browse through the various topics. See the OnStar
®
Owners Guide for more information (Only available
in the continental U.S.).
146

OnStar®Steering Wheel Controls
Your vehicle may have a Talk/Mute button that
can be used to interact with OnStar®Hands-Free
Calling. SeeAudio Steering Wheel Controls on
page 296for more information.
On some vehicles, you may have to hold the
button for a few seconds and give the command
“ONSTAR” in order to activate the OnStar
®
Hands-Free Calling feature.
On some vehicles, the mute button can be used to
dial numbers into voicemail systems, or to dial
phone extensions. See the OnStar
®Owner’s
Guide for more information.
How OnStar®Service Works
In order to provide you with OnStar®services,
your vehicle’s OnStar®system has the capability
of recording and transmitting vehicle information.
This information is automatically sent to an
OnStar
®Call Center at the time of an OnStar®
button press, Emergency button press or if
your airbags or AACN system deploys. The vehicle
information usually includes your GPS location
and, in the event of a crash, additional information
regarding the accident that your vehicle has
been involved in (e.g. the direction from which
your vehicle was hit). When you use the Virtual
Advisor feature of OnStar
®Hands-Free Calling,
your vehicle also sends OnStar®your GPS
location so that we can provide you with
location-based services.
147