lights HUMMER H3 2007 User Guide

Instrument Panel Overview........................ 152
Hazard Warning Flashers.......................... 154
Other Warning Devices............................. 154
Horn.......................................................... 154
Tilt Wheel.................................................. 154
Turn Signal/Multifunction Lever.................. 155
Turn and Lane-Change Signals................. 156
Headlamp High/Low-Beam Changer.......... 157
Flash-to-Pass............................................ 157
Windshield Wipers..................................... 157
Windshield Washer.................................... 158
Rear Window Wiper/Washer...................... 159
Cruise Control........................................... 159
Exterior Lamps.......................................... 162
Headlamps on Reminder........................... 164
Daytime Running Lamps (DRL)................. 164
Automatic Headlamp System..................... 165
Off-Road Lamps........................................ 166
Fog Lamps................................................ 167
Instrument Panel Brightness...................... 167
Dome Lamp.............................................. 167
Dome Lamp Override................................ 168
Exit Lighting.............................................. 168Reading Lamps......................................... 168
Electric Power Management...................... 168
Battery Run-Down Protection..................... 169
Accessory Power Outlet(s)........................ 169
Ashtray(s) and Cigarette Lighter................ 170
Climate Controls......................................... 170
Climate Control System............................. 170
Outlet Adjustment...................................... 173
Warning Lights, Gages, and Indicators..... 174
Instrument Panel Cluster........................... 175
Speedometer and Odometer...................... 176
Trip Odometer........................................... 176
Tachometer............................................... 176
Safety Belt Reminder Light........................ 177
Passenger Safety Belt Reminder Light....... 177
Airbag Readiness Light............................. 178
Passenger Airbag Status Indicator............. 179
Battery Warning Light................................ 181
Up-Shift Light (Manual Transmission)........ 181
Brake System Warning Light..................... 182
Anti-Lock Brake System
Warning Light........................................ 183
Section 3 Instrument Panel
149

9(Off):Turn the knob to this position to turn off
all exterior lamps, including the Daytime Running
Lamps (DRL). This is a momentary control that will
spring back to AUTO when released. Vehicles
rst sold in Canada do not have the DRL disable
feature available. Vehicles rst sold in Canada
cannot turn off the DRL unless the following
conditions are met:
The vehicle has an automatic transmission.
The gear position is in PARK (P).
The headlamp switch is turned to the
Off position.
AUTO (Automatic):Turn the knob to this position
to automatically turn on the headlamps at
normal brightness, together with the following:
Sidemarker Lamps
Taillamps
Parking Lamps
Instrument Panel Lights
Due to the momentary switch design, your
automatic headlamps may be disabled even
if the control is in the AUTO position.To enable automatic lighting, do any of the
following:
Turn the headlamp control from AUTO to off
and release the control. It will return back to
the AUTO position by itself.
Turn the headlamp control from the parking
lamp position to AUTO.
Turn the headlamp control from the headlamp
position to AUTO.
To disable automatic lighting, do any of the
following:
Turn the headlamp control from AUTO to off
and release the control. It will return back to
the AUTO position by itself.
Turn the headlamp control from AUTO to the
parking lamp position.
Turn the headlamp control from AUTO to the
headlamp position.
SeeAutomatic Headlamp System on page 165
for more information.
163

Vehicles rst sold in Canada with an automatic
transmission cannot turn off automatic headlamps
unless the gear position is in PARK (P) and
the headlamp switch is turned to the Off position.
Vehicles rst sold in Canada with a manual
transmission can turn off the automatic headlamps
with the headlamp control; however, the parking
lamps will remain on.
;(Parking Lamps):Turn the knob to this
position to turn on the parking lamps, together
with the following:
Sidemarker Lamps
Taillamps
License Plate Lamps
Instrument Panel Lights
2(Headlamps):Turn the knob to this position
to turn on the headlamps, together with the
previously listed lamps and lights.
You can switch your headlamps from low to high
beam by pushing the turn signal/multifunction
lever toward the instrument panel.
Headlamps on Reminder
A headlamp reminder chime will sound if the
following conditions are met:
The driver door is open.
Parking lamps or headlamps are manually
turned on.
The key is either not in the ignition switch, or it
is in the LOCK position of the ignition switch.
The headlamp reminder cannot be turned off if
the conditions listed above are met.
In the automatic mode, the headlamps turn off
once the ignition is in ACC.
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.
164

The DRL system will come on when the following
conditions are met:
The ignition is on.
The exterior lamps control is in AUTO.
The transmission is not in PARK (P) if
you have an automatic transmission.
The light sensor determines it is daytime.
When the DRL are on, no other lamps are on.
The instrument panel will not be lit up either.
For vehicles rst sold in Canada, if parking
lamps are manually turned on, DRL will stay on.
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.
To turn off the DRL, seeExterior Lamps
on page 162.
Vehicles rst sold in Canada cannot turn
off DRL unless certain conditions are met.
SeeExterior Lamps on page 162.
Automatic Headlamp System
When it is dark enough outside, the automatic
headlamp system will turn on after the transmission
has been shifted from PARK (P) to DRIVE (D).
The headlamps, taillamps, sidemarker, parking
lamps, roof marker lamps, and the instrument panel
lights will turn on at normal brightness. The radio
lights will become more dim when the headlights
are off compared to when the headlights are on.
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 the 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
system 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 detects a change
in lighting lasting longer than the delay.
165

Fog Lamps
Your vehicle has fog lamps. You can use them
for better vision in foggy or misty conditions.
Your parking lamps and/or low-beam headlamps
must be on for your fog lamps to work.
The fog lamp button
is located in the
exterior lamps control.
Press the button to turn the fog lamps on while
the headlamps or parking lamps are on. Press the
button again to turn them off. An indicator light
will glow in the button when the fog lamps are on.
Remember, fog lamps alone will not give off as
much light as your headlamps. Never use your fog
lamps in the dark without turning on the headlamps.
The fog lamps will go off whenever your
high-beam headlamps come on. When the high
beams go off, the fog lamps will come on again.
Some localities have laws that require the
headlamps to be on along with the fog lamps.
Instrument Panel Brightness
D(Instrument Panel Brightness):This feature
controls the brightness of the instrument panel
lights.
The thumbwheel for this feature is located next to
the exterior lamp control.
Turn the thumbwheel up or down to brighten or
dim the instrument panel lights and the radio
display. The instrument panel lights, cluster, and
radio display do not dim to complete darkness.
Turn the thumbwheel all the way up to turn
the dome lamps on.
Dome Lamp
The dome and footwell lamps will come on when
you open a door. The dome lamps are located
in the cargo and front area of the vehicle.
You can also turn the dome and footwell lamps
on by turning the thumbwheel, located next to
the exterior lamps control, all the way up. In this
position, the lamps will remain on whether a
door is opened or closed.
167

Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages
that may be on your vehicle. The pictures will
help you locate them.
Warning lights and gages can signal that
something is wrong before it becomes serious
enough to cause an expensive repair or
replacement. Paying attention to your warning
lights and gages could also save you or others
from injury.
Warning lights come on when there may be or is
a problem with one of your vehicle’s functions.
As you will see in the details on the next few
pages, some warning lights come on briey when
you start the engine just to let you know they
are working. If you are familiar with this section,
you should not be alarmed when this happens.Gages can indicate when there may be or is a
problem with one of your vehicle’s functions.
Often gages and warning lights work together
to let you know when there is a problem with your
vehicle.
When one of the warning lights comes on and
stays on when you are driving, or when one of
the gages shows there may be a problem, check
the section that tells you what to do about it.
Please follow this manual’s advice. Waiting to do
repairs can be costly — and even dangerous.
So please get to know your warning lights
and gages. They are a big help.
Your vehicle has a DIC that works along with the
warning lights and gages. SeeDriver Information
Center (DIC) on page 192for more information.
174

{CAUTION:
Even though the passenger sensing
system is designed to turn off the
passenger’s frontal airbag if the system
detects a rear-facing child restraint,
no system is fail-safe, and no one can
guarantee that an airbag will not deploy
under some unusual circumstance, even
though it is turned off. We recommend that
rear-facing child restraints be secured
in the rear seat, even if the airbag is off.
If the word OFF or the off symbol is lit on the airbag
status indicator, it means that the passenger
sensing system has turned off the right front
passenger’s frontal airbag. SeePassenger Sensing
System on page 75for more on this, including
important safety information.If, after several seconds, all status indicator lights
remain on, or if there are no lights at all, there
may be a problem with the lights or the passenger
sensing system. See your dealer for service.
{CAUTION:
If the off indicator and the airbag readiness
light ever come on together, it means that
something may be wrong with the airbag
system. If this ever happens, have the
vehicle serviced promptly, because an
adult-size person sitting in the right
front passenger seat may not have the
protection of the frontal airbag. See
Airbag Readiness Light on page 178.
180

When you drive over bumps, rocks, or other
obstacles, your wheels can leave the ground.
If this happens, even with one or two wheels, you
cannot control the vehicle as well or at all.
Because you will be on an unpaved surface, it is
especially important to avoid sudden acceleration,
sudden turns, or sudden braking.
In a way, off-road driving requires a different kind
of alertness from driving on paved roads and
highways. There are no road signs, posted speed
limits, or signal lights. You have to use your
own good judgment about what is safe and
what is not.
Drinking and driving can be very dangerous on
any road. And this is certainly true for off-road
driving. At the very time you need special
alertness and driving skills, your reexes,
perceptions, and judgment can be affected by
even a small amount of alcohol. You could have
a serious — or even fatal — accident if you
drink and drive or ride with a driver who has been
drinking. SeeDrunken Driving on page 235.Crossing Obstacles
Approach Angle — a Key to Mobility
If you encounter a large dip in the terrain, do not
enter straight on; enter at an angle — 15 degrees
minimum approach (A), 75 degrees maximum
approach angle (B). For very large dips, ditches,
or small washes, coast in, using the engine as a
brake (transmission and transfer case lowest
gears). Then, use the low ranges in the
transmission and transfer case to power out.
258

Keep the windshield and all the glass on your
vehicle clean — inside and out. Glare at night is
made much worse by dirt on the glass. Even
the inside of the glass can build up a lm caused
by dust. Dirty glass makes lights dazzle and
ash more than clean glass would, making the
pupils of your eyes contract repeatedly.
Remember that the headlamps light up far less
of a roadway when you are in a turn or curve.
Keep your eyes moving; that way, it is easier
to pick out dimly lighted objects. Just as the
headlamps should be checked regularly for
proper aim, so should your eyes be examined
regularly. Some drivers suffer from night
blindness — the inability to see in dim
light — and are not even aware of it.Driving in Rain and on Wet Roads
Rain and wet roads can mean driving trouble. On a
wet road, you cannot stop, accelerate, or turn as
well because your tire-to-road traction is not as
good as on dry roads. And, if your tires do not have
much tread left, you will get even less traction. It is
always wise to go slower and be cautious if rain
starts to fall while you are driving. The surface may
get wet suddenly when your reexes are tuned for
driving on dry pavement.
273

How to Check and Add Fluid
The proper uid should be added if the level does
not reach the bottom of the diaphragm when it
is in place in the reservoir. See the instructions on
the reservoir cap.
Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is
designed to remain in your vehicle for ve years or
150,000 miles (240 000 km), whichever occurs
rst, if you add only DEX-COOL
®extended
life coolant.
The following explains your cooling system and
how to add coolant when it is low. If you have
a problem with engine overheating, seeEngine
Overheating on page 338.A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant may require changing sooner, at
the rst maintenance service after each
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would not
be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
335