2006 HUMMER H2 reset

CHARGING SYSTEM FAILURE
On some vehicles, if there is a problem with the
generator and battery charging system, this message
will appear on the DIC, a chime will sound and the
charging system light on the instrument panel cluster
will come on. SeeCharging System Light on page 3-34
andVoltmeter Gage on page 3-34for more information.
Driving with this problem could drain your battery.
Turn off all unnecessary accessories. Stop and turn off
the vehicle as soon as it is safe to do so. Have the
electrical system checked by your dealer immediately.
CHECK OIL LEVEL
If the oil level in the vehicle is low, this message will
appear on the DIC. Check the oil level and correct it as
necessary. You may need to let the vehicle cool or
warm up and cycle the ignition to be sure this message
will clear. Once the problem is corrected, pressing
any of the four DIC buttons or the trip odometer reset
stem will clear this message from the DIC display. This
message will clear itself after 10 seconds until the
next ignition cycle.
CHECK WASHER FLUID
If the washer uid level is low, this message will appear
on the DIC. Adding washer uid will clear the message.
SeeWindshield Washer Fluid on page 5-34for more
information. Pressing any of the four DIC buttons or the
trip odometer reset stem will clear it from the DIC
display. This message will clear itself after 10 seconds
until the next ignition cycle.
DRIVER DOOR AJAR
If the driver’s door is not fully closed and the vehicle is
in a drive gear, this message will appear on the
display and you will hear a chime. Stop and turn off the
vehicle, check the door for obstacles, and close the
door again. Check to see if the message still appears on
the DIC. Pressing any of the four DIC buttons or the
trip odometer reset stem will clear the message from the
DIC display.
3-49

ENGINE COOLANT HOT
If the cooling system temperature gets hot, this message
will appear in the DIC. Turn off the air conditioning. If
the message is still on, or if the engine coolant
temperature gage continues to rise, pull the vehicle over
when it is safe to do so. SeeEngine Coolant
Temperature Gage on page 3-37for more information.
Stop the vehicle and let the engine idle in PARK (P)
for a few minutes to allow the coolant to reach a
safe temperature. This message will clear when the
coolant temperature drops to a safe operating
temperature. Pressing any of the four DIC buttons or
the trip odometer reset stem will clear the message from
the DIC display.
ENGINE OVERHEATED
If the engine cooling system reaches unsafe
temperatures for operation, this message will appear in
the DIC and you will hear a chime. Stop and turn off
the vehicle as soon as it is safe to do so to avoid severe
damage. This message will clear when the engine
has cooled to a safe operating temperature.
FUEL LEVEL LOW
If the fuel level is low, this message will appear on the
DIC and you will hear a chime. Refuel as soon as
possible. Pressing any of the four DIC buttons or the
trip odometer reset stem will clear the message from the
DIC display. It will also clear itself after 10 seconds.
The low fuel light near the fuel gage will still remain on
in either case. SeeLow Fuel Warning Light on
page 3-44,Fuel Gage on page 3-44, andFuel on
page 5-5for more information.
KEYFOB X BATTERY LOW
If a remote keyless entry transmitter battery is low, this
message will appear on the DIC. The battery needs
to be replaced in the transmitter. See “Battery
Replacement” underRemote Keyless Entry System
Operation on page 2-5. Pressing any of the
four DIC buttons or the trip odometer reset stem
will clear the message from the DIC display.
LEFT REAR DOOR AJAR
If the driver’s side rear door is not fully closed and the
vehicle is in a drive gear, this message will appear
on the display and you will hear a chime. Stop and turn
off the vehicle, check the door for obstacles, and
close the door again. Check to see if the message still
appears on the DIC. Pressing any of the four DIC
buttons or the trip odometer reset stem will clear the
message from the DIC display.
3-50

OIL LIFE RESET
This message will appear on the display for about
10 seconds after resetting the change engine oil
message. SeeEngine Oil on page 5-14and “Engine Oil
Life System” underDIC Operation and Displays on
page 3-45for more information.
OIL PRESSURE LOW
If low oil pressure levels occur, this message will be
displayed on the DIC and a chime will sound. Stop the
vehicle as soon as safely possible and do not operate
it until the cause of the low oil pressure has been
corrected. Check your oil as soon as possible and have
your vehicle serviced by your dealer.
PASSENGER DOOR AJAR
If the passenger’s door is not fully closed and the
vehicle is in a drive gear, this message will appear on
the display and you will hear a chime. Stop and turn off
the vehicle, check the door for obstacles, and close
the door again. Check to see if the message still
appears on the DIC. Pressing any of the four DIC
buttons or the trip odometer reset stem will clear the
message from the DIC display.
REAR ACCESS OPEN
On the SUV, if the liftgate is open while the ignition is in
RUN, this message will appear on the DIC and you
will hear a chime. Turn off the vehicle and check
the liftgate. Restart the vehicle and check for the
message on the DIC display. Pressing any of the
four DIC buttons or the trip odometer reset stem will
clear the message from the DIC display.
On the SUT, if the midgate is open or one or both of the
midgate latches are not fully closed, this message will
appear on the DIC. Turn off the vehicle and check that
the midgate and the latches are closed. Restart the
vehicle and check for the message on the DIC display.
Pressing any of the four DIC buttons or the trip odometer
reset stem will clear the message from the DIC display.
REDUCED ENGINE POWER
This message is displayed when the cooling system
temperature gets too hot and the engine further enters
the engine coolant protection mode.
SeeEngine Overheating on page 5-27for further
information.
You may also see this message when the vehicle
determines a problem with the electronic throttle control.
See your dealer for service.
3-51

REPLACE LIFTGATE FUSE (SUV)
This message will be displayed if the liftgate lock
malfunctions and/or the liftgate fuse blows. For more
information on fuses, seeInstrument Panel Fuse Block
on page 5-116andUnderhood Fuse Block on
page 5-119.
If the message returns after replacing the fuse, see your
dealer for service.
RIGHT REAR DOOR AJAR
If the passenger’s side rear door is not fully closed and
the vehicle is in a drive gear, this message will
appear on the display and you will hear a chime. Stop
and turn off the vehicle, check the door for obstacles,
and close the door again. Check to see if the
message still appears on the DIC. Pressing any of
the four DIC buttons or the trip odometer reset stem will
clear the message from the DIC display.
SERVICE 4WD (Full-Time
Four-Wheel Drive)
If a problem occurs with the Full-Time Four-Wheel Drive
system, this message will appear on the DIC. If this
message appears, stop as soon as possible and turn off
the vehicle. Restart the vehicle and check for the
message on the DIC display. If the message is still
displayed, or appears again when you begin driving,
there is a problem with the Full-Time Four-Wheel Drive
system. See your dealer for service. Pressing any of
the four DIC buttons or the trip odometer reset stem will
clear the message from the DIC display.
SERVICE AIR BAG
If there is a problem with the airbag system, this
message will be displayed on the DIC. Have your dealer
inspect the system for problems. Pressing any of the
four DIC buttons or the trip odometer reset stem
will clear the message from the DIC display. SeeAirbag
Readiness Light on page 3-32andAirbag System on
page 1-58for more information.
3-52

SERVICE AIR SUSPENSION
If a problem occurs with the suspension system, this
message will appear on the DIC. If this message
appears, stop as soon as possible and turn off the
vehicle. Restart the vehicle and check for the message
on the DIC display. If the message is still displayed,
or appears again when you begin driving, there is
a problem with the air suspension system. See your
dealer for service.
SERVICE BRAKE SYSTEM
If a problem occurs with the brake system, this message
will appear on the DIC. If this message appears, stop
as soon as possible and turn off the vehicle. Restart the
vehicle and check for the message on the DIC display.
If the message is still displayed, or appears again when
you begin driving, there is a problem with the brake
system. See your dealer for service. Pressing any of the
four DIC buttons or the trip odometer reset stem will
clear the message from the DIC display.
TIGHTEN FUEL CAP
If the vehicle’s fuel cap is not tightened properly, this
message may appear along with the check engine light
on the instrument panel cluster. SeeMalfunction Indicator
Lamp on page 3-39. Reinstall the fuel cap, making sure
to fully install the cap. SeeFilling the Tank on page 5-8.
The diagnostic system can determine if the fuel cap has
been left off or improperly installed. A loose or missing
fuel cap will allow fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed should
turn the light and message off.
TRACTION ACTIVE
When the traction control system has detected that any
of the vehicle’s wheels are slipping, the traction
control system will activate and this message will appear
on the DIC. SeeTraction Control System (TCS) on
page 4-9for more information.
3-53

If the vehicle has the Tow/Haul mode, use this feature if
the transmission is operating at higher temperatures
and/or the following situations exist, which can cause the
transmission to operate at higher temperatures:
Towing a trailer
Hot outside air temperatures
Hauling a large or heavy load
Over-loading
Low transmission uid level
High transmission uid level
Restricted air ow to the radiator and the
auxiliary transmission oil cooler, if your vehicle has
this feature
A temporary solution to hotter transmission operating
temperatures may be to let the transmission cool down.
If the transmission is operated at higher temperatures
on a frequent basis, seeScheduled Maintenance
on page 6-4for the transmission your vehicle is
equipped with for the proper transmission maintenance
intervals. Also seeTransmission Temperature Gage
on page 3-37for more information.
TURN SIGNAL ON
If a turn signal is left on for 3/4 of a mile (1.2 km), this
message will appear on the display and you will hear a
chime. Move the turn signal/multifunction lever to the
off position. Pressing any of the four DIC buttons or the
trip odometer reset stem will clear the message from
the DIC display.
DIC Vehicle Customization
Your vehicle may have customization capabilities that
allow you to program some features to one personalized
setting based on your preference. All of the
customizable options listed may not be available on
your vehicle. Only the options available will be displayed
on your Driver Information Center (DIC).
The default settings for the customization features were
set when your vehicle left the factory, but may have
been changed from their default state since then.
To change feature preferences, make sure the ignition
is on and the vehicle is in PARK (P). Press the
customization button to scroll through the available
customizable options.
After pressing the customization button, VEHICLE
SETTINGS will momentarily display before going to a
customization option.
3-55

ALARM WARNING: HORN:The horn will chirp when
the alarm is active.
ALARM WARNING: LAMPS:The headlamps will ash
when the alarm is active.
Choose one of the available options and press the
customization button while your choice is displayed on
the DIC to select it and move on to the next feature.
For more information on alarm warning type, see
Content Theft-Deterrent on page 2-21.
Language
To select your preference for display language, press
the select button while LANGUAGE is displayed on the
DIC. Pressing the select button will scroll through the
following languages:
ENGLISH
FRANCAIS (French)
ESPANOL (Spanish)
Choose one of the available options and press the
customization button while it is displayed on the DIC to
select it.If you accidentally choose a language that you do not
want or understand, press and hold the customization
button and the trip information button at the same
time. The DIC will begin scrolling through the languages
in their particular language. English will be in English,
Francais will be in French, and Espanol will be in
Spanish. When you see the language that you would
like, release both buttons. The DIC will then display the
information in the language you chose.
You can also scroll through the different languages by
pressing and holding the trip reset stem for four seconds,
as long as you are in the odometer mode.
Display Units
Press the customization button until DISPLAY UNITS
appears in the display. To select English or metric, press
the select button while DISPLAY UNITS is displayed
on the DIC. Pressing the select button will scroll through
the following choices:
DISPLAY UNITS: ENGLISH
DISPLAY UNITS: METRIC
3-60

If you choose English, all information will be displayed
in English units. For example, distance in miles and fuel
economy in miles per gallon. If you choose metric, all
information will be displayed in metric units. For
example, distance in kilometers and fuel economy in
liters per 100 kilometers.
Choose one of the available options and press the
customization button while it is displayed on the DIC to
select it and end out of the customizable options.
Audio System(s)
Determine which radio your vehicle has and then read
the pages following to familiarize yourself with its
features.
Driving without distraction is a necessity for a safer
driving experience. SeeDefensive Driving on page 4-2.
By taking a few moments to read this manual and
get familiar with your vehicle’s audio system, you can
use it with less effort, as well as take advantage of
its features. While your vehicle is parked, set up your
audio system by presetting your favorite radio stations,
setting the tone and adjusting the speakers. Then,
when driving conditions permit, you can tune to your
favorite stations using the presets and steering
wheel controls (if equipped).
{CAUTION:
This system provides you with a far greater
access to audio stations and song listings.
Giving extended attention to entertainment
tasks while driving can cause a crash and you
or others can be injured or killed. Always keep
your eyes on the road and your mind on the
drive — avoid engaging in extended searching
while driving.
Keeping your mind on the drive is important for safe
driving. For more information, seeDefensive Driving on
page 4-2. Get familiar with your vehicle’s audio
system so you can use it with less effort and take full
advantage of its features.
Here are some ways in which you can help avoid
distraction while driving.
3-61