sensor JEEP GRAND CHEROKEE 2010 WK / 3.G Owners Manual

▫Seat Belts And Pregnant Women .......... 45
▫ Seat Belt Extender ..................... 45
▫ Supplemental Restraint Systems (SRS) —
Airbags ............................ 46
▫ Advanced Front Airbag Features .......... 48
▫ Airbag Deployment Sensors And Controls . . . 52
▫ Event Data Recorder (EDR) .............. 59
▫ Child Restraints ...................... 61 
Engine Break-In Recommendations .......... 71
 Safety Tips ........................... 72
▫ Transporting Passengers ................ 72
▫ Exhaust Gas ......................... 72
▫ Safety Checks You Should Make Inside The
Vehicle ............................. 73
▫ Periodic Safety Checks You Should Make
Outside The Vehicle ................... 74
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 13

The Advanced Front Airbags have a multistage inflator
design. This allows the airbag to have different rates of
inflation based on the severity and type of collision.
This vehicle may also be equipped with Supplemental
Side Airbag Inflatable Curtains (SABIC) to protect the
driver, front, and rear passengers sitting next to a win-
dow. If the vehicle is equipped with SABIC airbags, they
are located above the side windows and their covers are
also labeled: SRS AIRBAG.
NOTE:Airbag covers may not be obvious in the interior
trim; but they will open during airbag deployment.Airbag System Components
The airbag system consists of the following:
•Occupant Restraint Controller (ORC)
•Airbag Warning Light
•Driver Front Airbag
•Front Passenger Airbag
•Front and Side Impact Sensors
•Steering Wheel and Column
•Instrument Panel
•Knee Impact Bolster
•Front Seat Belt Pretensioners — if equipped
•Supplemental Side Airbag Inflatable Curtains (SABIC)
— if equipped
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 47

Advanced Front Airbag Features
The Advanced Front Airbag system has multistage driver
and front passenger airbags. This system provides output
appropriate to the severity and type of collision as
determined by the Occupant Restraint Controller (ORC),
which may receive information from the impact sensors
at the front of the car.
The first stage inflator is triggered immediately during an
impact that requires airbag deployment. The timing of
the second stage determines whether the output force is
low, medium, or high. If a low output is sufficient to meet
the need, the remaining gas in the inflator is expended.WARNING!
•No objects should be placed over or near the
airbag on the instrument panel, because any such
objects could cause harm if the vehicle is in a crash
severe enough to cause the airbag to inflate.
•Do not put anything on or around the airbag
covers or attempt to open them manually. You may
damage the airbags and you could be injured
because the airbags may no longer be functional.
The protective covers for the airbag cushions are
designed to open only when the airbags are inflat-
ing.
•Do not drill, cut or tamper with the knee bolster in
any way.
•Do not mount any accessories to the knee bolster
such as alarm lights, stereos, citizen band radios,
etc.
48 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

The system includes sensors adjacent to both front and
rear seat occupants that are calibrated to deploy the
SABIC airbags during impacts that require airbag occu-
pant protection.
WARNING!
•If your vehicle is equipped with left and right Side
Airbag Inflatable Curtain (SABIC), do not stack
luggage or other cargo up high enough to block
the location of the SABIC. The area where the side
curtain airbag is located should remain free from
any obstructions.
•Do not use accessory seat covers or place objects
between you and the side airbags; the performance
could be adversely affected and/or objects could
be pushed into you, causing serious injury.
Knee Impact Bolsters
The Knee Impact Bolsters help protect the knees of the
driver and the front passenger, and position everyone for
the best interaction with the Advanced Front Airbag.
Along with seat belts and pretensioners, Advanced Front
Airbags work with the knee bolsters to provide improved
protection for the driver and front passenger. Side airbags
also work with seat belts to improve occupant protection.
Here are some simple steps you can take to minimize the
risk of harm from a deploying airbag:
Children 12 years old and younger should always ride
buckled up in a rear seat.
50 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

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 front airbag deployment could cause
serious injury, including death. Airbags need
room to inflate. Sit back, comfortably extending
your arms to reach the steering wheel or instru-
ment panel.
•Side airbags also need room to inflate. Do not lean
against the door. Sit upright in the center of the
seat.
Airbag Deployment Sensors and Controls
Occupant Restraint Controller (ORC)
TheORC is part of a Federally regulated safety system
required for this vehicle.
The ORC determines if deployment of the front and/or
side airbags in a frontal or side collision is required.
Based on the impact sensors signals, a central electronic
ORC deploys the Advanced Front Airbags, SABIC air-
bags — if equipped, and front seat belt pretensioners —
if equipped, as required, depending on severity and type
of impact.
Advanced Front Airbags are designed to provide addi-
tional protection by supplementing the seat belts in
certain frontal collisions depending on the severity and
type of collision. Advanced Front Airbags are not ex-
pected to reduce the risk of injury in rear, side, or rollover
collisions.
52 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

The Advanced Front Airbags will not deploy in all frontal
collisions, including some that may produce substantial
vehicle damage — for example, some pole collisions,
truck underrides, and angle offset collisions. On the other
hand, depending on the type and location of impact,
Advanced Front Airbags may deploy in crashes with
little vehicle front-end damage but that produce a severe
initial deceleration.
The side airbags will not deploy in all side collisions. Side
airbag deployment will depend on the severity and type
of collision.
Because airbag sensors measure vehicle deceleration over
time, vehicle speed and damage by themselves are not
good indicators of whether or not an airbag should have
deployed.
Seat belts are necessary for your protection in all colli-
sions, and also are needed to help keep you in position,
away from an inflating airbag.The ORC monitors the readiness of the electronic parts of
the system whenever the ignition switch is in the START
or ON position. 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.
The ORC contains a backup power supply system that
may deploy the airbags even if the battery loses power or
it becomes disconnected prior to deployment.
Also, the ORC turns on the Airbag Warning
Light in the instrument panel for approxi-
mately 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. 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 startup.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 53

deploy the SABIC airbags, depending on severity and
type of collision. In these events, the ORC will deploy the
SABIC only on the impact side of the vehicle.
A quantity of non-toxic 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 ms
(about one-quarter of the time that 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
3-1/2 in (9 cm) thick when it is inflated.
Because airbag sensors estimate deceleration over time,
vehicle speed and damage are not good indicators of
whether or not an airbag should have deployed.
NOTE:In a rollover the pretensioners and/or SABIC
airbags may deploy on both sides of the vehicle.Front and Side Impact Sensors
In front and side impacts, impact sensors aid the ORC in
determining appropriate response to impact events. Ad-
ditional sensors in the ORC determine the level of airbag
deployment and provide verification.
Enhanced Accident Response System
In the event of an impact causing airbag deployment, if
the communication network remains intact, and the
power remains intact, depending on the nature of the
event the ORC will determine whether to have the
Enhanced Accident Response System perform the follow-
ing functions:
•Cut off fuel to the engine.
•Flash hazard lights as long as the battery has power or
until the ignition key is turned off.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 55

located on the inside of the fuse block cover for the
proper airbag fuses. See your authorized dealer if the
fuse is good.
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 list below) in an event data recorder prior to the
moment of airbag deployment, or near deployment (if
applicable), and up to a quarter second of either high-
speed deceleration data or change in velocity during
and/or after airbag deployment or near-deployment.
EDR data is ONLY recorded if an airbag deploys, or
nearly deploys, and is otherwise unavailable.
NOTE:
1. A near-deployment event occurs when the airbag
sensor detects severe vehicle deceleration usually indica-
tive 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 Group LLC and others to learn more
about the possible causes of crashes and associated
injuries in order to assess and improve vehicle perfor-
mance. In addition to crash investigations initiated by
Chrysler Group LLC, such investigations may be re-
quested by customers, insurance carriers, government
officials, and professional crash researchers, such as those
associated with universities, and with hospital and insur-
ance organizations.
In the event that an investigation is undertaken by
Chrysler Group LLC (regardless of initiative), the com-
pany or its designated representative will first obtain
permission of the appropriate custodial entity for the
vehicle (usually the vehicle owner or lessee) before
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 59

▫Fog Lights — If Equipped .............. 106
▫ Turn Signals ........................ 107
▫ Lane Change Assist ................... 108
▫ High/Low Beam Switch ............... 108
▫ Flash-To-Pass ....................... 108
▫ Headlight Time Delay ................. 108
▫ Interior Lights ...................... 108
▫ Front Map/Reading Lights ............. 108
 Windshield Wipers And Washers .......... 109
▫ Windshield Wiper Operation ............ 110
▫ Intermittent Wiper System .............. 110
▫ Windshield Washer Operation ............111
▫ Mist ............................. 112 ▫
Rain Sensing Wipers — If Equipped ....... 112
 Tilt/Telescoping Steering Column .......... 114
 Adjustable Pedals — If Equipped .......... 115
 Electronic Speed Control — If Equipped ..... 116
▫ To Activate ......................... 117
▫ To Set a Desired Speed ................ 118
▫ To Deactivate ....................... 118
▫ To Resume Speed .................... 118
▫ To Vary The Speed Setting .............. 118
▫ To Accelerate For Passing .............. 119
 Parksense Rear Park Assist — If Equipped . . . 119
▫ Parksense Sensors................... 120
▫ Parksense Warning Display ............ 120
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 77

ParkSensewill remember the last system state (enabled
or disabled) from the last ignition cycle when the ignition
is changed to the ON position.
ParkSense can be active only when the shift lever is in
REVERSE. If ParkSense is enabled at this shift lever
position, the system will be active until the vehicle speed
is increased to approximately 11 mph (18 km/h) or
above. The system will be active again if the vehicle
speed is decreased to speeds less than approximately
10 mph (16 km/h).
ParkSense Sensors
The four ParkSense sensors, located in the rear fascia,
monitor the area behind the vehicle that is within the
sensors’ field of view.
The sensors can detect obstacles from approximately 12
to 59 in (30 to 150 cm) from the rear fascia in the
horizontal direction, depending on the location and
orientation of the obstacle and the type of obstacle.
ParkSense Warning Display
The ParkSense warning display, located in the headliner
near the flipper glass, provides both visible and audible
warnings to indicate the distance between the rear fascia
and the detected obstacle.
ParkSense Display
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