sensor DODGE NITRO 2009 1.G Owners Manual

WARNING!
•Relying 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.
•Being too close to the steering wheel or instrument
panel during airbag deployment could cause seri-
ous injury. Airbags need room to inflate. Sit back,
comfortably extending your arms to reach the
steering wheel or instrument panel.
•The side curtain airbags need room to inflate. Do
not lean against the door or window. Sit upright in
the center of the seat.
Airbag System Components
The airbag system consists of the following:
•Occupant Restraint Control Module
•Airbag Warning Light
•Driver Airbag
•Passenger Airbag
•Side Curtain Airbags above Side Windows
•Side Remote Acceleration Sensors
•Steering Wheel and Column
•Instrument Panel
•Interconnecting Wiring
•Front Remote Acceleration Sensors
•Driver and Front Passenger Seat Belt Retractors
52 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

•Occupant Classification System (OCS) — Front Pas-
senger Seat Only
Occupant Classification Module
Passenger Airbag Disable (PAD) Indicator Light
Weight Sensors
How The Airbag System Works
•
TheOccupant Restraint Control (ORC) modulede-
termines if a frontal, side, or rollover collision is severe
enough to require the airbags to inflate. The front
airbag inflators are designed 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 detect roll over,
but not rear impacts.The ORC also monitors the readiness of the electronic
parts of the system whenever the ignition switch is in
the START or ON positions. These include all of the
items listed above except the instrument panel, and
the steering wheel and column. If the key is in the
LOCK position, in the ACC position, or not in the
ignition, the airbags are not on and will not inflate.
•Also, the ORC turns on the “Airbag Warn-
ing Light” and “PAD Indicator Light” for six
to eight 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 to
Passenger Airbag Disable (PAD) Indicator Lightin
this section). If the ORC detects a malfunction in any
part of the system, it turns on the “Airbag Warning
Light” either momentarily or continuously. A single
chime will sound if the light comes on again after
initial start up.
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NOTE:Even though this vehicle is equipped with an
Occupant Classification System, children 12 years and
younger 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.
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.
Reclining the seat back too far may change how an
occupant is classified by the OCS.
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 occu-
pant’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 can prevent the occupant’s weight from being
measured properly and may result in the occupant being
56 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

improperly classified. Ensure that the front passenger
seatback does not touch anything placed on the back seat
because this can also affect occupant classification. Also,
if you fold down the rear seat, check to be sure it doesn’t
touch the front passenger seat.
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 there 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 a 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 illumi-
nated to show that the passenger airbag is turned off untilthe fault is cleared. If an object is lodged 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.
•TheDriver 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 are possible
based on collision severity and occupant size. The steer-
ing 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 to 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.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 57
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The driver front airbag gas is vented through the vent
holes in the sides of the airbag. The passenger front
airbag gas is vented through the vent holes in the sides
of the airbag. In this way, the airbags do not interfere
with your control of the vehicle.
•TheOccupant 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-
trol (ORC) module. The ORC uses the occupant cat-
egory to determine whether the front passenger airbag
should be turned off. It also determines the rate of
airbag inflation during a collision.
•Your vehicle has fourweight sensorslocated between
the seat and the floor pan. The weight sensors measure
applied weight and transfers that information to the
OCM.
•TheSide Impact SRS Side Curtain Airbagsare de-
signed to activate only in certain side collisions and
rollover events. When the ORC detects a collision
requiring the side curtain airbag to inflate, it signals
the inflators on the crash side of the vehicle. A quantity
of nontoxic gas is generated to inflate the side curtain
airbag. The inflating side curtain airbag 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 side curtain airbag
inflates. This especially applies to children. The side
curtain airbag is only about 3
12inches (9 cm) thick
when it is inflated.
58 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Airbag Warning Light
You will want to have the airbag system ready to inflate for
your protection in an impact. The airbag system is designed
to be maintenance free. If any of the following occurs, have
an authorized dealer service the system promptly:
•Does not come on during the six to eight seconds after
the ignition switch is first turned ON.
•Remains on after the six to eight second interval.
•Comes on for any period of time while driving.
Event Data Recorder (EDR)
In the event of an accident, your vehicle is designed to
record up to five seconds of specific vehicle data param-
eters (see the following list) in an event data recorder
prior to the moment of airbag deployment, or near
deployment, and up to a quarter second of high-speed
deceleration data during and/or after airbag deploy-
ment. EDR data are ONLY recorded if an airbag deploys,
or nearly deploys, and are otherwise unavailable.NOTE:
1.
A near-deployment event occurs when the airbag sensor
detects severe vehicle deceleration usually indicative of a
crash, but not severe enough to warrant airbag deployment.
2. Under certain circumstances, EDR data may not be
recorded (e.g., loss of battery power).
In conjunction with other data gathered during a com-
plete accident investigation, the electronic data may be
used by Chrysler LLC and others to learn more about the
possible causes of crashes and associated injuries in order
to assess and improve vehicle performance. In addition
to crash investigations initiated by Chrysler LLC, such
investigations may be requested by customers, insurance
carriers, government officials, and professional crash
researchers, such as those associated with universities,
and with hospital and insurance organizations.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 63
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System Usage Precautions
NOTE:
•Ensure that the rear bumper is free of dirt and debris
to keep the Rear Park Assist System operating prop-
erly.
•Jackhammers, large trucks, and other vibrations could
affect the performance of the Rear Park Assist System.
•When you turn off the Rear Park Assist System, the
instrument cluster will display “PARK ASSIST DIS-
ABLED.” Furthermore, once you turn off the Rear
Park Assist System, it remains off until you turn it on
again, even if you cycle the ignition key.
•When you move the shift lever to the REVERSE
position and the Rear Park Assist System is turned off,
a single chime will sound once per ignition cycle and
the instrument cluster will display “PARK ASSIST
DISABLED.”
•The Rear Park Assist System, when on, will MUTE the
radio when it is sounding a tone.
•If a Rear Park Assist System malfunction occurs, a
single chime will sound once per ignition cycle. In
addition, the Electronic Vehicle Information Center
(EVIC) will display “SERVICE PARK ASSIST SYS-
TEM” and the LED in the Rear Park Assist switch will
illuminate. If this occurs, see your authorized dealer
for service.
CAUTION!
•The Rear Park Assist System is only a parking aid
and it is unable to recognize every obstacle, in-
cluding small obstacles. Parking curbs might be
temporarily detected or not detected at all. Ob-
stacles located above or below the sensors will not
be detected when they are in close proximity.
(Continued)
138 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

CAUTION! (Continued)
•The vehicle must be driven slowly when using the
Rear Park Assist System to be able to stop in time
when the obstacle is detected. It is recommended
that the driver looks over his/her shoulder when
using the Rear Park Assist System.
•Clean the Rear Park Assist Sensors with water, car
wash soap, and a soft cloth. Do not use rough or
hard cloths. Do not scratch or poke the sensors.
Otherwise, you could damage the sensors.
WARNING!
•Drivers must be careful when backing up even
when using the Rear Park Assist System. Always
check carefully behind your vehicle, look behind
you, and be sure to check for pedestrians, animals,
other vehicles, obstructions, and blind spots be-
fore backing up. You are responsible for safety and
must continue to pay attention to your surround-
ings. Failure to do so can result in serious injury or
death.
(Continued)
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 139
3

WARNING! (Continued)
•Before using the Rear Park Assist System, it is
strongly recommended that the ball mount and
hitch ball assembly is disconnected from the ve-
hicle when the vehicle is not used for towing.
Failure to do so can result in injury or damage to
vehicles or obstacles because the hitch ball will be
much closer to the obstacle than the rear fascia
when the warning display turns the red LEDs ON.
Also, the sensors could detect the ball mount and
hitch ball assembly, depending on its size and
shape, giving a false indication that an obstacle is
behind the vehicle.
Enabling and Disabling the System
There are times when you may want to disable the Rear
Park Assist System, such as when towing a trailer.
Vehicles Equipped With the Electronic Vehicle
Information Center (EVIC)
You can turn the Rear Park Assist System on or off
through the EVIC. For details, refer to “Personal Settings
(Customer-Programmable Features)” under “Electronic
Vehicle Information Center (EVIC)” in Section 4 of this
manual.
140 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Vehicles Equipped with Rear Park Assist Switch
You can turn the Rear Park Assist System on or off by
pressing the Rear Park Assist switch located the lower
switch bank below the climate controls.System Operation
The system uses four sensors located in the rear bumper
fascia to scan for obstacles up to 79 in (200 cm) away from
the rear bumper fascia. The warning display located
above the rear window provides both visible and audible
warnings to indicate the range of the object.
Rear Park Assist Switch
Rear Park Assist LED Display
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 141
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