2011 JEEP GRAND CHEROKEE Owners Manual

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 collision
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.
Supplemental Seat-Mounted Side Airbags (SAB)
Supplemental Seat-Mounted Side Airbags may provide
enhanced protection to help protect an occupant during a
side impact. The Supplemental Seat-Mounted Side Air-
bag is marked with an airbag label sewn into the out-
board side of the front seats.
Supplemental Seat-Mounted Side Airbag Label
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When the airbag deploys, it opens the seam between the
front and side of the seat’s trim cover. Each airbag
deploys independently, that is a left side impact deploys
the left airbag only and a right-side impact deploys only
the right airbag.
Supplemental Side Airbag Inflatable Curtain
(SABIC)
SABIC airbags may offer side-impact and vehicle rollover
protection to front and rear seat outboard occupants in
addition to that provided by the body structure. Each
airbag features inflated chambers placed adjacent to the
head of each outboard occupant that reduce the potential
for side-impact head injuries. The curtains deploy down-
ward, covering both windows on the impact side.NOTE:
•Airbag covers may not be obvious in the interior trim;
but they will open during airbag deployment.
Supplemental Side Airbag Inflatable Curtain
(SABIC) Label Location
72 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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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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It also includes diagnostics that will illuminate the instru-
ment cluster Airbag Warning Light if a malfunction is
noted that could affect the airbag system. The diagnostics
also record the nature of the malfunction.
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 as a bulb check when the ignition is first turned
on, stays on after you start the vehicle, or if it comes
on as you drive, have an authorized dealer service the
airbag system immediately.
Driver And Passenger Advanced Front Airbag
Inflator Units
The Driver and Passenger Advanced Front Airbag Infla-
tor Units are located in the center of the steering wheel
and the right side of the instrument panel. When theORC detects a collision requiring the Advanced Front
Airbags, it signals the inflator units. A large quantity of
non-toxic gas is generated to inflate the Advanced Front
Airbags. Different airbag inflation rates are possible,
based on the collision type and severity. The steering
wheel hub trim cover and the upper right side of the
instrument panel separate and fold out of the way as the
airbags inflate to their full size. The airbags fully inflate in
about 50 to 70 milliseconds. This is about half of the time
it takes to blink your eyes. The airbags then quickly
deflate while helping to restrain the driver and front
passenger.
The Advanced 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.
76 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Supplemental Seat-Mounted Side Airbag (SAB)
Inflator Units
The Supplemental Seat-Mounted Side Airbags are de-
signed to activate only in certain side collisions.
The ORC determines if a side collision requires the side
airbags to inflate based on the severity and type of
collision.
Based on the severity and type of collision, the side
airbag inflator on the crash side of the vehicle may be
triggered, releasing a quantity of non-toxic gas. The
inflating SAB exits through the seat seam into the space
between the occupant and the door. The SAB fully inflate
in about 10 milliseconds. The side airbag moves at a very
high speed and with such a high force, that it could injure
you if you are not seated properly, or if items are
positioned in the area where the side airbag inflates. This
especially applies to children.
Supplemental Side Airbag Inflatable Curtain
(SABIC) Inflator Units
During collisions where the impact is confined to a
particular area of the side of the vehicle, the ORC may
deploy the SABIC airbags, depending on the 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
SABIC. The inflating SABIC pushes the outside edge of
the headliner out of the way and covers the window. The
SABIC inflates in about 30 milliseconds (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 SABIC inflates. This especially applies to
children. The SABIC is only about 3-1/2 in (9 cm) thick
when it is inflated.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 77

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