light HUMMER H2 2006 Service Manual

;(Parking Lamps):Turn the control to this position to
turn on the parking lamps, together with the following:
Sidemarker Lamps
Taillamps
License Plate Lamps
Roof Marker Lamps
Instrument Panel Lights
2(Headlamps):Turn the control to this position to
turn on the headlamps, together with the previously
listed lamps and lights.
When the vehicle is turned off and the headlamps are in
AUTO, the headlamps may automatically remain on
for a set time. You can change this delay time using the
DIC. SeeDriver Information Center (DIC) on page 3-45.
You can switch your headlamps from low to high-beam
by pushing the turn signal/multifunction lever toward
the instrument panel.
Headlamps on Reminder
If a door is open, a reminder chime will sound when your
headlamps or parking lamps are manually turned on and
your key is out of the ignition. To turn off the chime, turn
the headlamp switch to off or AUTO and then back on. In
the AUTO mode, the headlamps turn off once the ignition
is in LOCK or may remain on until the headlamp delay
ends (if enabled in the DIC).
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the
day. DRL can be helpful in many different driving
conditions, but they can be especially helpful in the short
periods after dawn and before sunset. Fully functional
daytime running lamps are required on all vehicles
rst sold in Canada.
The DRL system will come on when the following
conditions are met:
The ignition is on,
the exterior lamps control is in AUTO, if enabled,
the transmission is not in PARK (P), and
the light sensor determines it is daytime.
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When the DRL are on, only your DRL lamps will be on.
The taillamps, sidemarker and other lamps won’t be
on. The instrument panel won’t be lit up either.
When it begins to get dark, the automatic headlamp
system will switch from DRL to the headlamps.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Automatic Headlamp System
When it is dark enough outside and the headlamp
switch is in AUTO, your automatic headlamp system will
turn on your headlamps at the normal brightness
along with other lamps such as the taillamps,
sidemarker, parking lamps, roof marker lamps and the
instrument panel lights. The radio lights will also be dim.
To turn off the automatic headlamp system, turn the
exterior lamps switch to the off position and then
release. Turning off the automatic headlamp system
with the headlamp switch is not available for vehicles
rst sold in Canada. For vehicles rst sold in Canada,
you can turn off the automatic headlamp system
when parked at night by applying the parking brake
before starting your vehicle. The headlamps will remain
off once the vehicle is started for as long as you are
parked. If you release the parking brake, the lights willturn on. If the parking brake is not released before you
begin to drive, the exterior lamps will turn on above
2 mph (3.2 km/h).
Your vehicle has a light sensor located on the top of the
instrument panel. Be sure it is not covered, or the
system will be on whenever the ignition is on.
The system may also turn on your headlamps when
driving through a parking garage, heavy overcast
weather or a tunnel. This is normal.
There is a delay in the transition between the daytime
and nighttime operation of the Daytime Running
Lamps (DRL) and the automatic headlamp systems so
that driving under bridges or bright overhead street
lights does not affect the system. The DRL and
automatic headlamp system will only be affected when
the light sensor sees a change in lighting lasting
longer than the delay.
If you start your vehicle in a dark garage, the automatic
headlamp system will come on immediately. Once
you leave the garage, it will take approximately
one minute for the automatic headlamp system to
change to DRL if it is light outside. During that delay,
your instrument panel cluster may not be as bright
as usual. Make sure your instrument panel brightness
control is in the full bright position. SeeInstrument Panel
Brightness on page 3-17.
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Off-Road Lamps
Notice:If you drive your vehicle through an
automatic car wash that does not have enough
clearance for any roof-mounted accessories (such
as off-road lamps or a roof basket) on your vehicle,
you can damage your vehicle. To avoid damaging
your vehicle in a car wash, remove any
roof-mounted accessories if you can, and do not
use an automatic car wash while roof-mounted
accessories are on your vehicle. SeeWashing Your
Vehicle on page 5-109for more information.
The off-road lamps, if equipped, provide auxiliary lighting
when your vehicle is used off road. These lamps are
not intended to be used in conjunction with, or in place
of, existing vehicle lighting. The lamps are not to be
used on any public street or highway and are to
be covered when not in use. Check your state and local
laws before installing or using any auxiliary lighting.
In some states it may be necessary to remove the roof
lamps when operating the vehicle on the highway.
The button for the off-road lamps is located in the
overhead console.
To use the lamps, be sure the engine is running.
Remove the covers from the lamps and press the button
to turn them on. Press the button again to turn them
off. An indicator light will glow near the button when the
lamps are on.Notice:Turning on the off-road lamps before
removing the lamp covers could damage the
off-road lamps and the covers. Always return the
lamps to the upright position and remove the covers
before turning on the off-road lamps.
The off-road lamps will remain on even after the ignition
is turned off. The off-road lamps button must be
pressed to turn them off.
Loading objects onto the off-road light bar may cause
damage to the light bar or off road lamps. Repairs would
not be covered by your warranty. Do not load objects
on the off-road light bar.
Instrument Panel Brightness
The thumbwheel for this feature is located next to the
exterior lamps control.
D(Instrument Panel Lights):Turn the thumbwheel
up or down to brighten or dim the instrument panel
lights and the radio display. This will only work if
the headlamps or parking lamps are on.
To turn on the dome lamps, with the vehicle doors
closed, turn the thumbwheel all the way up.
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Dome Lamps
The dome lamps will come on when you open a door or
the midgate, if equipped, and will turn off when all
doors or midgate are closed.
You can also turn the dome lamps on by turning the
thumbwheel, located next to the exterior lamp control, all
the way up. In this position, the dome lamps will
remain on whether a door is opened or closed.
Dome Lamp Override
E(Dome Override):Press this button, located below
the exterior lamp control, to turn dome lamps off even
while a door is opened. To return the lamps to automatic
operation, press the button again and it will return to
the out position. In this position, the dome lamps
will come on when you open a door.
Entry/Exit Lighting
Your vehicle is equipped with an illuminated entry/exit
feature.
When a door is opened or the key is removed from the
ignition, the dome lamps will come on if the dome
override button is in the out position.
Reading Lamps
Your vehicle has reading lamps located in the overhead
console. Press the button located next to the lamp to
turn it on. The lamps can be adjusted to point in
the direction you want.
Press the button again to turn the lamp off.
These lamps will also come on with the dome lamps.
Battery Run-Down Protection
This feature shuts off the dome lamps if they are left on
for more than 10 minutes when the ignition is in
LOCK. This will keep your battery from running down.
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.
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To turn off the rear vision camera system, do
the following:
1. Place the vehicle shift lever in (P) PARK.
2. Turn the ignition key to the ACCESSORY position.
3. Press the right mirror button 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 mirror button 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.
To manually slide out the rear camera screen for
cleaning, do the following:
1. Place the vehicle shift lever in (P) PARK.
2. Turn the ignition key to the ACCESSORY or
RUN position.
3. Press and hold the right mirror button 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.
{CAUTION:
Do not back the vehicle while only looking at
the rear vision camera screen. The distances
between objects and surfaces will differ from
actual distances. The camera system does not
display objects that are below the bumper,
underneath the vehicle, or objects out of the
camera’s eld of view. The rear vision camera
is not intended for use during longer backing
maneuvers or backing into potential crossing
traffic. Crossing traffic may be approaching
outside of the camera’s eld of view.
If the driver backs up the vehicle while only
looking at the screen, they may hit a
pedestrian, bicyclist, child, pet, or other object
resulting in injury or death. The driver should
always check behind and around the vehicle
when backing up just as they would if they did
not have the rear vision camera.
3-19

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.
Accessory Power Outlet(s)
Your vehicle may be equipped with up to ve accessory
power outlets. The two front outlets, if equipped, are
located under the OnStar
®buttons on the instrument
panel behind hinged doors.
The two middle outlets, if equipped, are located on the
back of the center console.
There may also be an outlet located in the rear of the
vehicle near the liftgate. Remove the cap to use the
outlet. Replace the cap when the outlet is not in use.
If your vehicle is the SUT model, there is an outlet in the
rear cargo area on the passenger’s side of the vehicle.
Notice:Adding any electrical equipment to your
vehicle may damage it or keep other components
from working as they should. The repairs would not
be covered by your warranty. Do not use equipment
exceeding maximum amperage rating. Check
with your dealer before adding electrical equipment.
Certain power accessory plugs may not be compatible
to the accessory power outlets and could result in blown
vehicle or adapter fuses. If you experience a problem,
see your dealer for additional information on the
accessory power plugs.
Notice:Improper use of the power outlet can cause
damage not covered by your warranty. Do not
hang any type of accessory or accessory bracket
from the plug because the power outlets are
designed for accessory power plugs only.
3-21

Ashtray(s) and Cigarette Lighter
If your vehicle has an ashtray, it is removable and ts
into the front cupholder. Pull up on the ashtray door
to open it.
Notice:If you put papers, pins, or other ammable
items in the ashtray, hot cigarettes or other
smoking materials could ignite them and possibly
damage your vehicle. Never put ammable items in
the ashtray.
To remove the ashtray, pull it out from the console. To
reinstall the ashtray, slide it back to the original position.
To use the cigarette lighter, if equipped, push it in all
the way, and let go. When it’s ready, it will pop back out
by itself.
Notice:Holding a cigarette lighter in while it is
heating will not allow the lighter to back away from
the heating element when it is hot. Damage from
overheating may occur to the lighter or heating
element, or a fuse could be blown. Do not hold a
cigarette lighter in while it is heating.
Climate Controls
Dual Automatic Climate Control
System
With this system, you can control the heating, cooling
and ventilation in your vehicle.
You can select different climate control settings for the
driver and passengers.
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Use the steps below to place the entire system in
automatic mode:
1. Press the AUTO button.
When AUTO is selected, the display will change to
show the current driver’s set temperature, delivery
mode and fan speed. Press the AUTO button again
within ve seconds to display the passenger’s set
temperature.
If the driver and passenger’s temperature
settings are not the same, the opposite side
temperature setting will be displayed for an
additional ve seconds. To make the passenger’s
temperature the same as the driver’s press and hold
the AUTO button for about four seconds.
When auto is selected, the air conditioning operation
and air inlet will be automatically controlled. The
air conditioning compressor will run when the
outside temperature is over about 40°F (4°C). The
air inlet will normally be set to outside air. If it’s
hot outside, the air inlet may automatically switch to
recirculate inside air to help quickly cool down
your vehicle. The light on the button will illuminate
in recirculation.
2. Set the driver’s and passenger’s temperature.
To nd your comfort setting, start with a 74°F (23°C)
temperature setting and allow about 20 minutes
for the system to regulate. Turn the driver’s orpassenger’s side temperature knob to adjust the
temperature setting as necessary. If you choose the
temperature setting of 60°F (15°C) the system
will remain at the maximum cooling setting. If you
choose the temperature setting of 90°F (32°C)
the system will remain at the maximum heat setting.
Choosing either maximum setting will not cause
the vehicle to heat or cool any faster.
Be careful not to cover the sensor located on the
top of the instrument panel near the windshield. This
sensor regulates air temperature based on sun
load, and also turns on your headlamps.
To avoid blowing cold air in cold weather, the
system will delay turning on the fan until warm air is
available. The length of delay depends on the
engine coolant temperature. Pressing the fan switch
will override this delay and change the fan to a
selected speed.
9(Off):Press this button to turn off the entire climate
control system. Outside air will still enter the vehicle, and
will be directed to the oor. This direction can be changed
by pressing the mode button. The temperature can also
be adjusted using either temperature knob. Press the up
or down arrows on the fan switch, the defrost button, the
AUTO button, or the air conditioning button to turn the
system on when it is off.
3-24

Manual Operation
You may manually adjust the air delivery mode or
fan speed.
w9x(Fan):The switch with the fan symbol allows
you to manually adjust the fan speed. Press the up
arrow to increase fan speed and the down arrow
to decrease fan speed.
Pressing this button when the system is off will turn the
system on.
C(Mode):Press this button to manually change the
direction of the airow in your vehicle; repeatedly
press the button until the desired mode appears on
the display.
If you press the mode button to select an air delivery
mode, the display will change to show you the selected
air mode delivery. The display will then show the current
status of the system. When the system is turned off, the
display will go blank after displaying the current status of
the system.
H(Panel):This setting will deliver air to the
instrument panel outlets.
)(Bi-Level):This setting will deliver warmer air to the
oor and cooler air to the instrument panel outlets.
6(Floor):This setting will deliver air to the
oor outlets.
-(Defog):See “Defogging and Defrosting” later in
this section.
@(Recirculation):Press this button to limit the
amount of outside air entering your vehicle. The light on
the recirculation button will glow. This is helpful when you
are trying to limit odors entering your vehicle and for
maximum air conditioning performance in hot weather.
Press this button again to allow outside air to enter the
vehicle. The light on the recirculation button will go off.
Pressing this button also cancels the auto recirculation
feature. To resume the auto recirculation function, press
the AUTO button. Each time the vehicle is started, the
system will revert to the auto recirculation function.
If you select recirculation while in defrost, defog or oor,
the light in the button will ash and then go out to let you
know that this is not allowed. This is normal and helps to
prevent fogging.
When the weather is cool or damp, operating the system
in recirculation for extended periods of time may cause
fogging of the vehicle’s windows. To clear the fog, select
either defog or front defrost.
You may also notice that the A/C compressor will run
while in recirculation mode. This is normal and helps to
prevent fogging.
3-25

On hot days, open the windows long enough to let hot
inside air escape. This reduces the time it takes for
your vehicle to cool down. Then keep your windows
closed for the air conditioner to work its best.
On cool, but sunny days while using manual operation of
the automatic system, use bi-level to deliver warm air to
the oor and cooler air to the instrument panel outlets. To
warm or cool the air delivered, turn the temperature knob
to the desired setting.
In AUTO mode the system will cool and dehumidify the
air inside the vehicle. Also while in AUTO mode, the
system will maximize its performance by using
recirculation as necessary.
Heating
On cold days when using manual operation of the
automatic system, choose oor mode to deliver air to
the oor outlets. To warm or cool the air delivered, turn
the temperature knob to the desired setting.
If you want to use the automatic mode, press
AUTO and adjust the temperature by turning the
temperature knob.
The heater works best if you keep the windows closed
while using it.
Defogging and Defrosting
You can use either defog or front defrost to clear fog or
frost from your windshield. Use the defog mode to
clear the windows of fog or moisture. Use the front
defrost button to defrost the front windshield.
-(Defog):Use this setting to clear the windows of fog
or moisture. Press the mode button to select this
setting. This setting will deliver air to the oor and
windshield outlets.
0(Front Defrost):Press the front defrost button to
defrost the windshield. The system will automatically
control the fan speed if you select defrost from AUTO
mode. If the outside temperature is 40°F (4°C) or warmer,
your air conditioning compressor will automatically run to
help dehumidify the air and dry the windshield.
Rear Window Defogger
If your vehicle has this feature, the lines you see on the
rear window warm the glass. The rear window
defogger uses a warming grid to remove fog from the
rear window.
<(Rear):Press this button to turn the rear window
defogger on or off. An indicator light in the button
will come on to let you know that the rear window
defogger is activated.
3-27