lights HUMMER H3 2008 User Guide

Exterior Lamps
The control on the driver’s side of your instrument panel
operates the exterior lamps.
O(Exterior Lamps):Turn the knob, located to the
right of this symbol, to choose one of the four exterior
lamp positions.
O(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 springs
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, the 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 or
headlamp position to AUTO.
3-15

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 or headlamp position.
SeeAutomatic Headlamp System on page 3-17for
more information.
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.
The headlamps can be switched 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.
3-16

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.
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 3-15.Vehicles rst sold in Canada cannot turn off DRL unless
certain conditions are met. SeeExterior Lamps on
page 3-15.
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.
3-17

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 come on when any door
is opened. The dome lamps are located in the cargo
and front area of the vehicle.
The dome and footwell lamps can be turned on by
turning the thumbwheel, located next to the exterior
lamps control, all the way up. In this position, the lamps
remain on whether a door is opened or closed.
3-19

Move the louvers up or down to change the direction of
the airow. Use the thumbwheel under the outlets to
change the direction of the airow from left to right.
Operation Tips

Enable recirculation mode for maximum air
conditioning performance.
Clear away any ice, snow or leaves from the air
inlets at the base of the windshield that may
block the ow of air into your vehicle.
Use of non-GM approved hood deectors may
adversely affect the performance of the system.
Keep the path under the front seats clear of objects
to help circulate the air inside of your vehicle more
effectively.
Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages on
your vehicle. The pictures help to 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 the
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 the
details show 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 as
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 vehicle’s warning lights and
gages. They can be a big help.
Your vehicle may also have a Driver Information Center
(DIC) that works along with the warning lights and gages.
SeeDriver Information Center (DIC) on page 3-40for
more information.
3-25

{CAUTION:
Even though the passenger sensing system is
designed to turn off the right front 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 1-62
for more on this, including important safety information.If, after several seconds, both 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/retailer for service.
{CAUTION:
If the airbag readiness light in the instrument
panel cluster ever comes on and stays on, 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’s seat may not have the protection
of the airbag(s). SeeAirbag Readiness Light
on page 3-29for more on this, including
important safety information.
3-31

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. SeeDrunk Driving on page 4-2.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.
4-20

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 5-29.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.
5-27

L
Labeling, Tire Sidewall.....................................5-55
Lamps
Dome........................................................3-19
Dome Lamp Override...................................3-20
Off-Road....................................................3-18
Reading.....................................................3-20
Lap-Shoulder Belt...........................................1-24
LATCH System
Child Restraints...........................................1-42
License Plate Lamps.......................................5-51
Light
Airbag Readiness........................................3-29
Antilock Brake System Warning.....................3-34
Brake System Warning.................................3-33
Charging System.........................................3-32
Cruise Control.............................................3-39
Highbeam On.............................................3-39
Malfunction Indicator....................................3-36
Oil Pressure...............................................3-38
Passenger Airbag Status Indicator..................3-30
Safety Belt Reminders..................................3-28
Security.....................................................3-39
StabiliTrak
®Not Ready.................................3-34Light (cont.)
Tire Pressure..............................................3-35
Traction Off................................................3-34
Up-Shift.....................................................3-32
Lighting
Exit...........................................................3-20
Lights
Exterior Lamps............................................3-15
Flash-to-Pass............................................... 3-9
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-16
Loading Your Vehicle.......................................4-42
Locking Rear Axle............................................ 4-6
Lockout Protection............................................ 2-9
Locks
Door........................................................... 2-7
Lockout Protection......................................... 2-9
Power Door.................................................. 2-8
Programmable Automatic Door Locks............... 2-8
Rear Door Security Locks............................... 2-9
Loss of Control...............................................4-10
Luggage Carrier..............................................2-57
Lumbar
Power Controls............................................. 1-3
7

W
Warning Lights, Gages and Indicators................3-25
Warnings
DIC Warnings and Messages........................3-43
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Wheels
Alignment and Tire Balance..........................5-75
Different Size..............................................5-73
Replacement...............................................5-75
Where to Put the Restraint...............................1-40
Windows.......................................................2-11
Power........................................................2-12Windshield
Backglass, and Wiper Blades, Cleaning..........5-97
Washer......................................................3-10
Washer Fluid..............................................5-37
Wiper Blade Replacement.............................5-52
Wiper Fuses.............................................5-101
Wipers.......................................................3-10
Windshield, Rear Washer/Wiper........................3-11
Winter Driving................................................4-35
X
XM Radio Messages.......................................3-60
XM™ Satellite Radio Antenna System................3-62
Y
Your Vehicle and the Environment....................... 6-2
14