2011 JEEP GRAND CHEROKEE sensor

▫Automatic Locking Retractor Mode (ALR) —
If Equipped ......................... 60
▫ Seat Belt Pretensioners ................. 61
▫ Supplemental Active Head Restraints
(AHR) ............................. 61
▫ Enhanced Seat Belt Use Reminder System
(BeltAlert) ......................... 65
▫ Seatbelt Lock Out ..................... 67
▫ Seat Belts And Pregnant Women .......... 67
▫ Seat Belt Extender ..................... 67
▫ Supplemental Restraint System (SRS) —
Airbags ............................ 68
▫ Advanced Front Airbag Features .......... 70▫
Airbag Deployment Sensors And Controls . . . 74
▫ Event Data Recorder (EDR) .............. 81
▫ Child Restraints ...................... 82
 Engine Break-In Recommendations .......... 95
 Safety Tips ........................... 96
▫ Transporting Passengers ................ 96
▫ Exhaust Gas ......................... 97
▫ Safety Checks You Should Make Inside The
Vehicle ............................. 98
▫ Periodic Safety Checks You Should Make
Outside The Vehicle .................. 100
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 13

WARNING!
During power operation, personal injury or cargo
damage may occur. Ensure the liftgate travel path is
clear. Make sure the liftgate is closed and latched
before driving away.
NOTE:
•If anything obstructs the power liftgate while it is
closing or opening, the liftgate will automatically
reverse to the closed or open position, provided it
meets sufficient resistance.
•There are also pinch sensors attached to the side of the
liftgate. Light pressure anywhere along these strips
will cause the liftgate to return to the open position.
•The power liftgate must be in the full open position for
rear liftgate close button or overhead console close button to operate. If the liftgate is not fully open, press
the Liftgate button on the Key Fob to fully open the
liftgate, and then press it again to close.
•If the liftgate handle is pulled while the power liftgate
is closing, the liftgate will reverse to the full open
position.
•If the liftgate handle is pulled while the power liftgate
is opening, the liftgate motor will disengage to allow
manual operation.
•The power liftgate buttons will not operate if the
vehicle is in gear or the vehicle speed is above 0 mph
(0 km/h).
•The power liftgate will not operate in temperatures
below
22°F (30°C) or temperatures above 150°F
(65°C). Be sure to remove any buildup of snow or ice
from the liftgate before pressing any of the power
liftgate switches.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 47

This vehicle may be equipped with driver and/or front
passenger seat track position sensors that may adjust the
inflation rate of the Advanced Front Airbags based upon
seat position.
This vehicle may be equipped with a driver and/or front
passenger seat belt buckle switch that detects whether
the driver or front passenger seat belt is fastened. The
seat belt buckle switch may adjust the inflation rate of the
Advanced Front Airbags.
This vehicle is equipped with Supplemental Side Airbag
Inflatable Curtains (SABIC) to protect the driver, front,
and rear passengers sitting next to a window. The SABIC
airbags, are located above the side windows and their
covers are also labeled: SRS AIRBAG.This vehicle is equipped with Supplemental Seat-
Mounted Side Airbags (SAB) to provide enhanced pro-
tection for an occupant during a side impact. The Supple-
mental Seat-Mounted Side Airbags are located in the
outboard side of the front seats.
NOTE:
•Airbag covers may not be obvious in the interior trim;
but they will open during airbag deployment.
•After any accident, the vehicle should be taken to an
authorized dealer immediately.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 69

Airbag System Components
Your vehicle may be equipped with the following airbag
system components:
•Occupant Restraint Controller (ORC)
•Airbag Warning Light
•Steering Wheel and Column
•Instrument Panel
•Knee Impact Bolster
•Driver Advanced Front Airbag
•Passenger Advanced Front Airbag
•Supplemental Seat-Mounted Side Airbags (SAB)
•Supplemental Side Airbag Inflatable Curtains (SABIC)
•Front and Side Impact Sensors
•Front Seat Belt Pretensioners, Seat Belt Buckle Switch,
and Seat Track Position Sensors
•Supplemental Active Head Restraint for Driver and
Front Passenger
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 front impact
sensors.
The first stage inflator is triggered immediately during an
impact that requires airbag deployment. This low output
is used in less severe collisions. A higher energy output is
used for more severe collisions.
70 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

•Being too close to the SAB and SABIC airbags during
deployment could cause you to be severely injured or
killed.
•Should a vehicle rollover occur, the pretensioners, SAB
and/or SABIC airbags on both sides of the vehicle
may deploy.
The system includes side impact sensors adjacent to both
front and rear seat occupants that are calibrated to deploy
the Supplemental Seat-Mounted Side Airbags and SABIC
airbags during impacts that require side airbag occupant
protection.
WARNING!
•If your vehicle is equipped with left and right
Supplemental 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 SABIC is located should re-
main 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.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 73

WARNING! (Continued)
•If your vehicle is equipped with SABIC airbags,
do not have any accessory items installed which
will alter the roof, including adding a sunroof to
your vehicle. Do not add roof racks that require
permanent attachments (bolts or screws) for instal-
lation on the vehicle roof. Do not drill into the roof
of the vehicle for any reason.
Knee Impact Bolsters
The Knee Impact Bolsters help protect the knees of the
driver and the front passenger, and position front occu-
pants for the best interaction with the Advanced Front
Airbags.
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.
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, SAB airbags, and front seat belt pretensioners, as
required, depending on the 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.
74 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 acci-
dents, 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 airbag system whenever the ignition switch is in the
START or ON/RUN position. If the key is in the OFF
position, in the ACC position, or not in the ignition, the
airbag system is not on and the airbags 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 four 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 75

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, SAB and/or
SABIC airbags may deploy on both sides of the vehicle.
Front And Side Impact Sensors
In front and side impacts, front and side impact sensors
can aid the ORC in determining the appropriate response
to certain impact events.
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.
•Turn on the interior lights, which remain on as long as
the battery has power or until the ignition key is
removed.
•Unlock the doors automatically.
If A Deployment Occurs
The Advanced Front Airbags are designed to deflate
immediately after deployment.
NOTE: Front and/or side airbags will not deploy in all
collisions. 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:
•The nylon airbag material may sometimes cause abra-
sions and/or skin reddening to the driver and front
78 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE