2008 HUMMER H2 Owners Manual

Compass Variance
The mirror is set in zone eight upon leaving the factory.
It will be necessary to adjust the compass to
compensate for compass variance if you live outside
zone eight. Under certain circumstances, as during
a long distance cross-country trip, it will be necessary to
adjust for compass variance. Compass variance is
the difference between earth’s magnetic north and true
geographic north. If not adjusted to account for
compass variance, your compass could give false
readings.
To adjust for compass variance:
1. Find your current location and variance zone
number on the following zone map.
2. Press and hold the compass/temperature button for
ve seconds until a zone number appears in the
display.
Cleaning the Mirror
When cleaning the mirror, use a paper towel or similar
material dampened with glass cleaner. Do not spray
glass cleaner directly on the mirror as that may cause
the liquid cleaner to enter the mirror housing.
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Outside Power Foldaway Mirrors
If your vehicle has outside
power foldaway mirrors,
the controls are located on
the driver’s door armrest.
Press (A) to select the driver side mirror.
Then press the arrows located on the four-way
control pad to adjust the mirror. Press (A) again
to deselect this mirror.
Press (B) to select the passenger side mirror.
Then press the arrows located on the four-way
control pad to adjust the mirror. Press (B) again
to deselect this mirror.
Press (C), to fold the mirrors out to the driving
position.
Press (D) to fold the mirrors in to the folded
position.If the mirrors are accidentally folded/unfolded manually,
they may shake or utter at normal driving speeds
and may not stay in the unfolded position. If this
happens, you will need to reset the mirrors.
See “Resetting the Power Foldaway Mirrors” next.
Resetting the Power Foldaway Mirrors
You will need to reset the power foldaway mirrors if the
following occurs:
The mirrors are accidentally obstructed while
folding.
They are accidentally manually folded/unfolded.
The mirrors will not stay in the unfolded position.
The mirrors shake and utter at normal driving
speeds.
To reset the power foldaway mirrors, fold and unfold
them three times using the mirror controls. This will reset
them to their normal position.
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Outside Automatic Dimming Mirror
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 2-45.
Park Tilt Mirrors
The vehicle’s outside mirrors can also perform a park tilt
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
(With DIC Buttons) on page 3-63for more information.
Outside Convex Mirror
{CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you
could hit a vehicle on your right. Check your
inside mirror or glance over your shoulder
before changing lanes.
The passenger side mirror is convex. A convex mirror’s
surface is curved so more can be seen from the
driver seat. It also makes things, like other vehicles,
look farther away than they really are.
Outside Heated Mirrors
The vehicle may have outside heated mirrors which
help clear them of condensation, snow, and ice.
When the rear window defogger button is pressed, the
heated mirrors are also turned on. See “Rear Window
Defogger” underDual Automatic Climate Control System
on page 3-22for more information.
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Object Detection Systems
Rear Vision Camera
Your vehicle may be equipped with a rear vision camera
system. Read this entire section before using the
camera system.
The rear vision camera system is designed to help
the driver when backing up by displaying a view of the
area behind the vehicle. When the driver shifts the
vehicle into REVERSE (R), the video screen will
automatically slide out from the rear view mirror.
Once the driver shifts out of REVERSE (R), the video
screen will slide back into the rear view mirror after
a delay.
If your vehicle does not have a rearview mirror slide-out
video screen, your vehicle may have a navigation
radio system. See the Navigation System manual for
more information on the rear vision camera display
video screen.
Turning the Rear Vision Camera System
On or Off
To turn off the rear vision camera system, do the
following:
1. Shift into (P) PARK.
2. Turn the ignition key to the RUN position.
3. Press the right button on the inside rear view mirror
briey; the right green light indicator will turn off.
The rear camera vision display is now disabled.
To turn on the rear camera vision feature again, press
the right button on the inside rear view mirror briey.
The green light indicator will illuminate. The rear camera
vision system is now enabled and the display will
slide out from the mirror normally.
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Cleaning the Camera Screen
To manually slide out the rear camera screen for
cleaning, do the following:
1. Shift into (P) PARK.
2. Turn the ignition key to the RUN position.
3. Press and hold the right button on the inside rear
view mirror for ve seconds. The display will slide out
from the mirror for 30 seconds; the right green LED
indicator will remain illuminated. The camera screen
will not be on when it slides out of the mirror.
4. If additional time is required for cleaning,
repeat step 3.
To resume normal operation, press the right button
momentarily while the rear camera screen is out or wait
30 seconds for screen to slide back into the mirror.
For more information on the automatic dimming,
compass, and temperature features of the mirror,
seeAutomatic Dimming Rearview Mirror with
Compass and Temperature Display on page 2-45.{CAUTION:
The Rear Vision Camera (RVC) system does
not replace driver vision. RVC does not:
Detect objects that are outside the
camera’s eld of view, below the bumper,
or underneath the vehicle.
Detect children, pedestrians, bicyclists,
or pets.
Do not back the vehicle by only looking at
the rear vision camera screen, or use the
screen during longer, higher speed backing
maneuvers or where there could be
cross-traffic. Your judged distances using the
screen will differ from actual distances.
So if you do not use proper care before
backing up, you could hit a vehicle, child,
pedestrian, bicyclist, or pet, resulting in
vehicle damage, injury, or death. Even though
the vehicle has the RVC system, always check
carefully before backing up by checking
behind and around your vehicle.
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Rear Vision Camera Location
The image is provided by the camera located on the
rear bumper.
The camera uses a special lens. The distance of the
image that appears on the screen differs from the actual
distance. The area displayed by the camera is limited.
The camera does not display objects which are close
to either corner of the bumper or under the bumper.
The spare tire and carrier extends rearward of the rear
bumper. The area displayed on the screen may vary
according to vehicle orientation or road conditions.
The following illustration shows the eld of view that
the camera provides.
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Notice:The spare tire extends farther away from
rear of the vehicle than the trailer hitch shown
on rear vision camera display. Your spare tire could
hit an object even though there appears to be
enough distance on the display between the trailer
hitch and objects behind you causing vehicle or
property damage. Do not use this system to judge
the distance between the spare tire and objects
behind you.
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 following situations:
In the dark.
When the sun or the beam of headlights 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.
Extreme high or low temperatures or extreme
temperature changes can affect the image displayed.
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.
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.
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A complete OnStar Owner’s 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.
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)
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