DODGE DURANGO 2004 2.G Service Manual

WARNING!
²Relying on the airbags alone could lead to more
severe injuries in a collision. The airbags work
with your seat belt to restrain you properly. In
some collisions the airbags won't deploy at all.
Always wear your seat belts even though you
have airbags.
²Being too close to the steering wheel or instru-
ment panel during airbag deployment could cause
serious injury. Airbags need room to inflate. Sit
back, comfortably extending your arms to reach
the steering wheel or instrument panel.
²If the vehicle has window bags, they also need
room to inflate. Do not lean against the door or
window. Sit upright in the center of the seat.
Air Bag System Components
The airbag system consists of the following:
²Occupant Restraint Controller
²Side Remote Acceleration Sensors (If Equipped)
²Airbag Warning Light
²Driver Airbag
²Passenger Airbag
²Window Bags above Side Windows (If Equipped)
²Steering Wheel and Column
²Instrument Panel
²Interconnecting Wiring
²Knee Impact Bolsters
²Front Acceleration Sensors
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²Driver and Front Passenger Seat Belt Pretensioners
²Occupant Classification System (OCS) for the Front
Passenger Seat
þOccupant Classification Module
þPassenger Airbag Disable (PAD) Indicator Light
þWeight Sensors
How the Airbag System Works
²
TheOccupant Restraint Controller (ORC)determines
if a frontal collision is severe enough to require the
airbags to inflate. The front airbag inflators are de-
signed to provide different rates of airbag inflation
from direction provided by the ORC. The ORC may
also modify the rate of inflation based on the occupant
size provided by the Occupant Classification Module.
The ORC will not detect roll over.The ORC also monitors the readiness of the electronic
parts of the system whenever the ignition switch is in
the START or RUN positions. These include all of the
items listed above except the steering wheel and
column, and knee bolsters. If the key is in the OFF
position, in the ACC position, or not in the ignition,
the airbags are not on and will not inflate.
During a moderate-to-severe rear impact the ORC may
deploy the seat belt pretensioners alone.
Also, the ORC turns on the AIRBAG warning light and
PAD indicator light in the instrument panel for 6 to 8
seconds for a self-check when the ignition is first turned
on. After the self-check, the AIRBAG warning light will
turn off. The PAD indicator light will function normally
(Refer to9Passenger Airbag Disable (PAD) Indicator
Light9in this section). If the ORC detects a malfunction in
any part of the system, it turns on the AIRBAG warning
42 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

light either momentarily or continuously. A single chime
will sound if the light comes on again after initial start
up.
WARNING!
Ignoring the AIRBAG warning light in your instru-
ment panel could mean you won't have the airbags
to protect you in a collision. If the light does not
come on, stays on after you start the vehicle, or if it
comes on as you drive, have the airbag system
checked right away.
²TheOccupant Classification System (OCS)is part of
a Federally regulated safety system required for this
vehicle. It is designed to turn off the front passenger
airbag in the unlikely event that a rear-facing infant
seat is in the front passenger seat.NOTE:Children 12 years and under should always ride
buckled up in a rear seat in an appropriate child restraint.
²ThePassenger Airbag Disable (PAD) Indicator Light
(an amber light located in the center of the instrument
panel) tells the driver and front passenger when the
front passenger airbag is turned off. The PAD Indica-
tor lamp illuminates the words9PASS AIR BAG OFF9
to show that the passenger airbag will not inflate
during a collision requiring airbags.
This light should not be illuminated when an adult
passenger is properly seated in the front passenger
seat. In this case, the airbag is ready to be inflated if a
collision requiring an airbag occurs. The PAD Indica-
tor Light is also turned off when the seat is empty. The
only time that the PAD Indicator Light is turned on is
when a small weight is in the front passenger seat. The
system is required to turn on the PAD Indicator Light
when the weight in the front passenger seat is close to
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a rear-facing infant seat. Relatively light objects like
brief cases and grocery bags will also turn on the PAD
Indicator Light. The PAD Indicator Light will be off
when teenagers, most children and most children in
forward-facing seats are in the front passenger seat.
The system is only required to turn the PAD Indicator
Light on in the unlikely event that a rear-facing infant
seat is installed in front passenger seat.
NOTE:Children 12 years and under should always ride
buckled up in a rear seat in an appropriate child restraint.
Front Passenger
Seat OccupantPassenger Air-
bag Disable
(PAD) Indicator
LightAirbag Status
Adult OFF ON
Grocery Bags,
Heavy Briefcases
and Other Rela-
tively Light Ob-
jectsON OFF
Empty or Very
Small ObjectsOFF* OFF
* Since the system senses weight, some small objects
will turn the PAD Indicator Light on.
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The OCS classifies an occupant using weight sensors
mounted in the base of the front passenger seat. Any
weight on the seat will be sensed by the system. Objects
hanging on the seat or other passengers pushing down
on the seat will also be sensed. The weight of an adult
will cause the system to turn the airbag on. In this case,
the OCS has classified the occupant of the seat as an
adult. An adult occupant needs to sit in a normal position
(with their feet on or near the floor) in order to be
properly classified.
Drivers and adult passengers should verify that the PAD
Indicator Light is not illuminated when an adult is riding
in the front passenger seat. If an adult occupant's weight
is transferred to another part of the vehicle (like the door
or instrument panel), the weight sensors in the seat may
not properly classify the occupant. Objects lodged under
the seat or between the seat and the center console canprevent the occupant's weight from being measured
properly and may result in the occupant being improp-
erly classified.
If the front passenger seat is damaged in any way, it
should only be serviced by an authorized dealer. If the
seat is removed (or even if the seat attachment bolts are
loosened or tightened in any way), take the vehicle to an
authorized dealer.
If the is a fault present in the OCS, the Airbag Warning
Light (a red light located in the center of the instrument
cluster directly in front of the driver) will be turned on.
This indicates that you should take the vehicle to an
authorized dealer. The Airbag Warning Light is turned on
whenever there is fault that can affect the operation of the
airbag system. If there is a fault present in the OCS, both
the PAD Indicator Light and the Airbag Warning Light
are illuminated to show that the passenger airbag is
turned off until the fault is cleared. If an object is lodged
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under the seat and interferes with operation of the weight
sensors, a fault will occur which turns on both the PAD
Indicator Light and the Airbag Warning Light. Once the
lodged object is removed, the fault will be automatically
cleared after a short period of time.²TheDriver and Passenger Airbag/Inflator Unitsare
located in the center of the steering wheel and the right
side of the instrument panel. When the ORC detects a
collision requiring the airbags, it signals the inflator
units. A large quantity of nontoxic gas is generated to
inflate the front airbags. Different airbag inflation rates
may be possible based on collision severity and occu-
pant size. The steering wheel hub trim cover and the
upper right side of the instrument panel separate and
fold out of the way as the bags inflate to their full size.
The bags fully inflate in about 50 - 70 milliseconds.
This is about half of the time it takes to blink your eyes.
The bags then quickly deflate while helping to restrain
the driver and front passenger. The driver's front
airbag gas is vented through vent holes in the sides of
the airbag. The passenger's front airbag gas is vented
through vent holes in the sides of the airbag. In this
way the airbags do not interfere with your control of
the vehicle.
Passenger Airbag Off Indicator
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²TheOccupant Classification Module (OCM)is lo-
cated beneath the front passenger seat. The OCM
classifies the occupant into categories based on the
measurements made by the seat weight sensors. The
OCM communicates with the Occupant Restraint Con-
troller (ORC). The ORC uses the occupant category to
determine whether the front passenger airbag should
be turned off. It also determines the rate of airbag
inflation during a collision.
²ThePassenger Airbag Disabled (PAD) Indicator
Lightindicates to the driver and passenger when the
airbag is turned OFF. In the presence of a properly
seated occupant, when the PAD indicator light is
illuminated, the airbag is OFF. Also, when the Occu-
pant Classification System detects either an empty seat
or a weight less than the predetermined threshold, the
ORC will not illuminate the PAD indicator light even
though the airbag is turned OFF.
²Your vehicle has fourWeight Sensorslocated between
the seat and the floor pan. The weight sensors measure
applied weight and transfers that information to the
OCM.
²TheSide Impact SRS Window Bagsare designed to
activate only in certain side collisions. When the ORC
(with side impact option) detects a collision requiring
the window bags to inflate, it signals the inflators on
the crash side of the vehicle. A quantity of nontoxic gas
is generated to inflate the window bag. The inflating
window bag pushes the outside edge of the headliner
out of the way and covers the window. The airbag
inflates in about 30 milliseconds (about one quarter of
the time it takes to blink your eyes) with enough force
to injure you if you are not belted and seated properly,
or if items are positioned in the area where the
window bag inflates. This especially applies to chil-
dren. The window bag is only about 3-1/2 inches (9
cm) thick when it is inflated.
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²TheKnee Impact Bolstershelp protect the knees of
the driver and the front passenger, and position every-
one for the best interaction with the front airbag.
If A Deployment Occurs
The airbag system is designed to deploy the airbags
when the impact sensors detect a moderate-to-severe
frontal collision, to help restrain the driver and front
passenger, and then immediately deflate.
NOTE:A frontal collision that is not severe enough to
need airbag protection will not activate the system. This
does not mean something is wrong with the airbag
system.
If you do have a collision which deploys the airbags, any
or all of the following may occur:
²The nylon airbag material may sometimes cause abra-
sions and/or skin reddening to the driver and front
passenger as the airbags deploy and unfold. Theabrasions are similar to friction rope burns or those
you might get sliding along a carpet or gymnasium
floor. They are not caused by contact with chemicals.
They are not permanent and normally heal quickly.
However, if you haven't healed significantly within a
few days, or if you have any blistering, see your doctor
immediately. As the airbags deflate you may see some
smoke-like particles. The particles are a normal by-
product of the process that generates the nontoxic gas
used for airbag inflation. These airborne particles may
irritate the skin, eyes, nose, or throat. If you have skin
or eye irritation, rinse the area with cool water. For
nose or throat irritation, move to fresh air. If the
irritation continues, see your doctor. If these particles
settle on your clothing, follow the garment manufac-
turer's instructions for cleaning.²It is not advisable to drive your vehicle after the
airbags have deployed. If you are involved in another
collision, the airbags will not be in place to protect you.
48 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING!
Deployed airbags and seat belt pretensioners cannot
protect you in another collision. Have the airbags,
seat belt pretensioners, and the front passenger seat
belt retractor assembly, replaced by an authorized
dealer as soon as possible. Also, have the Occupant
Classification System serviced as well.
Maintaining Your Airbag System
WARNING!
²Modifications to any part of the airbag system could cause it to fail when you
need it. You could be injured if the airbag system is not there to protect you. Do
not modify the components or wiring, including adding any kind of badges or
stickers to the steering wheel hub trim cover or the upper right side of the
instrument panel. Do not modify the front bumper, vehicle body structure, or
add aftermarket side steps or running boards.
²Do not attempt to modify any part of your advanced airbag system. The airbag
may inflate accidentally or may not function properly if modifications are
made. Take your vehicle to an authorized dealer for any advanced airbag system
service. If your seat including your trim cover and cushion needs to be serviced
in any way (including removal or loosening/tightening of seat attachment
bolts), take the vehicle to your authorized dealer. Only manufacturer approved
seat accessories may be used. If it is necessary to modify an advanced airbag
system for persons with disabilities, contact your authorized dealer.
²Do not place or hang any items such as add-on video players on the right front
passenger seat back. The additional weight may cause the Occupant Classifi-
cation System to be unable to correctly classify the right front occupant. This
could allow the passenger frontal airbag to inflate when it is not desired.
²You need proper knee impact protection in a collision. Do not mount or locate
any aftermarket equipment on or behind the knee bolsters.
²It is dangerous to try to repair any part of the airbag system yourself. Be sure
to tell anyone who works on your vehicle that it has an airbag system.
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Enhanced Accident Response System
If the airbags deploy after an impact and the electrical
system remains functional, vehicles equipped with
power door locks will unlock automatically. In addition,
approximately 5 seconds after the vehicle has stopped
moving, the interior lights will light until the ignition
switch is turned off.
Airbag Light
You will want to have the airbags ready to
inflate for your protection in an impact. While
the airbag system is designed to be mainte-
nance free, if any of the following occurs, have
an authorized dealer service the system promptly:
²The airbag light does not come on or flickers during
the 6 to 8 seconds when the ignition switch is first
turned on.
²The light remains on or flickers after the 6 to 8 second
interval.
²The light flickers or comes on and remains on while
driving.
NOTE:If the speedometer, tachometer or any engine
related gauges are not working, the airbag control mod-
ule may also be disabled. The airbags may not be ready
to inflate for your protection. Promptly check fuse block
for blown fuses. Refer to the label located on the inside of
the fuse block cover for the proper airbag fuses. See your
dealer if the fuse is good.
Child Restraint
Everyone in your vehicle needs to be buckled up all the
time - babies and children, too. Every state in the United
States and all Canadian provinces require that small
children ride in proper restraint systems. This is the law,
and you can be prosecuted for ignoring it. Children 12
years and under should ride properly buckled up in a
rear seat, if available. According to crash statistics, chil-
dren are safer when properly restrained in the rear seats
rather than in the front.
50 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE