Jeep Wrangler (2018 year). Manual — part 16
Front Air Bag Operation
Front Air Bags are designed to provide additional protec-
tion by supplementing the seat belts. Front air bags are not
expected to reduce the risk of injury in rear, side, or
rollover collisions. The front air bags will not deploy in all
frontal collisions, including some that may produce sub-
stantial vehicle damage — for example, some pole colli-
sions, truck underrides, and angle offset collisions.
On the other hand, depending on the type and location of
impact, front air bags may deploy in crashes with little
vehicle front-end damage but that produce a severe initial
deceleration.
Because air bag sensors measure vehicle deceleration over
time, vehicle speed and damage by themselves are not
good indicators of whether or not an air bag should have
deployed.
Seat belts are necessary for your protection in all collisions,
and also are needed to help keep you in position, away
from an inflating air bag.
When the ORC detects a collision requiring the front air
bags, it signals the inflator units. A large quantity of
non-toxic gas is generated to inflate the front air bags.
The steering wheel hub trim cover and the upper passen-
ger side of the instrument panel separate and fold out of
the way as the air bags inflate to their full size. The front air
bags fully inflate in less time than it takes to blink your
eyes. The front air bags then quickly deflate while helping
to restrain the driver and front passenger.
Occupant Classification System (OCS) — Front
Passenger Seat
The OCS is part of a Federally regulated safety system for
this vehicle. It is designed to activate or deactivate the
Passenger Advanced Front Air Bag depending on the
occupant’s seated weight. It is designed to deactivate the
Passenger Advanced Front Air Bag for an unoccupied seat
and for occupants whose seated weight classifies them in a
category other than a properly seated adult. This could be
a child, teenager, or even an adult.
The Occupant Classification System (OCS) Consists Of
The Following:
• Occupant Restraint Controller (ORC)
• Occupant Classification Module (OCM) and Sensor lo-
cated in the front passenger seat
• Passenger Air Bag Disabled (PAD) Indicator Light – an
amber light located on the overhead sports bar
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• Air Bag Warning Light
• Passenger Seat Belt
Occupant Classification Module (OCM) And Sensor
The Occupant Classification Module (OCM) is located
underneath the front passenger seat. The Sensor is located
beneath the passenger seat cushion foam. Any weight on
the seat will be sensed by the Sensor. The OCM uses input
from the Sensor to determine the front passenger’s most
probable classification. The OCM communicates this infor-
mation to the ORC. The ORC uses the classification to
determine whether it should activate or deactivate the
Passenger Advanced Front Air Bag. In order for the OCS to
operate as designed, it is important for the front passenger
to be seated properly and properly wearing the seat belt.
Properly seated passengers are:
• Sitting upright.
• Facing forward.
• Sitting in the center of the seat with their feet comfort-
ably on or near the floor.
• Sitting with their back against the seat back and the seat
back in an upright position.
The OCS may deactivate the deployment of the Passenger
Advanced Front Air Bag if the OCS estimates that:
• The front passenger seat is unoccupied or has very light
objects in it.
• The front passenger seat is occupied by a rear-facing
child restraint.
• The front passenger seat is occupied by a child, includ-
ing a child seated in a forward-facing child restraint or
booster seat.
• The front passenger seat is occupied by a small passen-
ger, including a child or small adult.
Seated Properly
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247
• The front passenger is not properly seated or his or her
weight is taken off of the seat for a period of time.
Passenger Air Bag Disable (PAD) System
Front Passenger
Seat Occupant
Status
Front Passenger
Advanced Air
Bag Disabled
Indicator Light
(“PAD”) Status
Front Passenger
Air Bag Status
Unoccupied
seat* Unbuckled
NOT ILLUMI-
NATED
DEACTIVATED
Unoccupied
seat*Buckled
“PASSENGER
AIR BAG OFF”
DEACTIVATED
Grocery bags,
heavy briefcases,
and other rela-
tively light ob-
jects
“PASSENGER
AIR BAG OFF”
DEACTIVATED
Rear-facing child
restraint**
“PASSENGER
AIR BAG OFF”
DEACTIVATED
Passenger Air Bag Disable (PAD) System
Front Passenger
Seat Occupant
Status
Front Passenger
Advanced Air
Bag Disabled
Indicator Light
(“PAD”) Status
Front Passenger
Air Bag Status
Child, including
a child in a
forward-facing
child restraint or
booster seat**
“PASSENGER
AIR BAG OFF”
DEACTIVATED
Small adult
“PASSENGER
AIR BAG OFF”
DEACTIVATED
Properly seated
adult
NOT ILLUMI-
NATED
ACTIVATED
* When the front passenger seat is empty or when very
light objects are placed on the seat and the seat belt is
unbuckled, the Passenger Advanced Front Air Bag will not
deploy even though the PAD System Indicator Light is
NOT illuminated.
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SAFETY
** It is possible for a child to be classified as an adult,
allowing the deployment of the Passenger Advanced Front
Air Bag. Never allow children to ride in the front passenger
seat and never install a child restraint system, including a
rear-facing child restraint, in the front passenger seat.
WARNING!
• Never place a rear-facing child restraint in front of an
air bag. A deploying passenger front air bag can
cause death or serious injury to a child 12 years or
younger, including a child in a rear-facing child
restraint.
• Only use a rear-facing child restraint in a vehicle
with a rear seat.
• Children 12 years or younger should always ride
buckled up in a vehicle with a rear seat.
Passenger Advanced Front Air Bag Disabled (PAD) Indi-
cator Light
The Passenger Advanced Front Air Bag Disabled (PAD)
Indicator Light (an amber light located on the overhead
sports bar) tells the driver and front passenger when the
Passenger Advanced Front Air Bag is deactivated. The PAD
Indicator light illuminates the words “PASSENGER AIR
BAG OFF” to show that the Passenger Advanced Front Air
Bag will not deploy during a collision. When the front
passenger seat is empty or when very light objects are
placed on the seat and the seat belt is unbuckled, the
Passenger Advanced Front Air Bag will not deploy even
though the PAD indicator light is NOT illuminated.
The PAD indicator light should not be illuminated when an
adult passenger is properly seated in the front passenger
seat. The driver and adult passenger should verify that the
PAD Indicator Light is not illuminated when an adult is
riding in the front passenger seat. If an adult is not seated
properly, the Passenger Advanced Front Air Bag may
deactivate and the PAD Indicator Light will be illuminated.
The PAD Indicator Light should be illuminated and the
Passenger Advanced Front Air Bag should be deactivated
for most properly seated and restrained children in the
passenger seat and for most properly installed child re-
straint systems. However, under certain conditions, even
with a properly installed child restraint system, the PAD
Indicator Light may not be illuminated, even though the
Passenger Advanced Front Air Bag is deactivated. This can
occur if the child restraint is lighter than the lightest weight
necessary to illuminate the PAD Indicator Light. NEVER
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249
assume the Passenger Advanced Front Air Bag is deacti-
vated unless the PAD Indicator Light is illuminated with
the words “PASSENGER AIR BAG OFF.”
NOTE:
If the seat belt is buckled for an empty seat, the
PAD Indicator Light will illuminate.
If The Pad Indicator Light Is Illuminated For An Adult
Passenger:
If an adult passenger is seated in the front passenger seat
and the PAD Indicator Light is illuminated, the passenger
may be sitting improperly. Follow the steps below to allow
the OCS to detect the adult passenger’s seated weight to
activate the Passenger Advanced Front Air Bag:
1. Turn off the vehicle and have the adult passenger step
out of the vehicle.
2. Remove any extra materials from the passenger seat,
such as cushions, pads, seat covers, seat massagers,
blankets, extra clothing, etc.
3. Place the seatback in the full upright position.
4. Have the adult passenger sit in the center of the seat,
with the passenger’s feet comfortably on or near the
floor, and with their back against the seatback.
5. Restart the vehicle and have the passenger remain in
this seated position for two to three minutes after
restarting the vehicle.
WARNING!
• If the PAD Indicator Light remains illuminated for
an adult passenger, have an authorized dealer service
the air bag system immediately. Failure to do so may
cause serious injury or death. If the PAD Indicator
Light is illuminated with the words “PASSENGER
AIR BAG OFF,” the Passenger Advanced Front Air
Bag will not deploy in the event of a collision.
• Never place a rear-facing child restraint in front of an
air bag. A deploying passenger front air bag can
cause death or serious injury to a child 12 years or
younger, including a child in a rear-facing child
restraint.
• Only use a rear-facing child restraint in a vehicle
with a rear seat.
• Children 12 years or younger should always ride
buckled up in a vehicle with a rear seat.
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SAFETY
Lighter Weight Passengers (Including Small Adults)
When a lighter weight passenger, including a small adult,
occupies the passenger seat, the Passenger Advanced Front
Air Bag may be deactivated. Therefore, the Passenger
Advanced Front Air Bag may or may not be activated for a
lighter weight passenger, including a small adult (depend-
ing on size) who is seated in the passenger seat. This does
not mean that the OCS is working improperly.
The driver and passenger must always use the PAD
Indicator Light as a determination of whether the Passen-
ger Advanced Front Air Bag is activated or deactivated. If
the PAD Indicator Light is illuminated with the words
“PASSENGER AIR BAG OFF” when an adult is in the front
passenger seat, have the passenger reposition his or her
body in the seat until the PAD Indicator Light goes out.
If the PAD Indicator Light is illuminated with the words
“PASSENGER AIR BAG OFF” the Passenger Advanced
Front Air Bag will not inflate in the event of a collision.
Do Not Decrease OR Increase The Front Passenger’s
Seated Weight On The Front Passenger Seat
The front passenger’s seated weight must be properly
positioned on the front passenger seat. Failure to do so may
result in serious injury or death. The OCS determines the
most probable classification of the occupant that it detects.
The OCS will detect the front passenger’s decreased or
increased seated weight, which may result in deactivation
or activation of the Passenger Advanced Front Air Bag in a
collision. This does not mean that the OCS is working
improperly. Decreasing the front passenger’s seated weight
on the front passenger seat may result in deactivation of
the Passenger Advanced Front Air Bag causing serious
injury or death. Increasing the front passenger’s seated
weight on the front passenger seat may result in activation
of the Passenger Advanced Front Air Bag. Examples of
improper front passenger seating include:
• The front passenger’s weight is transferred to another
part of the vehicle (like the door, arm rest or instrument
panel).
• The front passenger leans forward, sideways, or turns to
face the rear of the vehicle.
• The front passenger’s seatback is not in the full upright
position.
• The front passenger carries or holds an object while
seated (e.g., backpack, box, etc.).
• Objects are lodged under the front passenger seat.
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251
• Objects are lodged between the front passenger seat and
center console.
• Accessories that may change the seated weight on the
front passenger seat are attached to the front passenger
seat.
• Anything that may decrease or increase the front pas-
senger’s seated weight.
The OCS determines the front passenger’s most probable
classification. If an occupant in the front passenger seat is
seated improperly, the occupant may provide an output
signal to the OCS that is different from the occupant’s
properly seated weight input, for example:
Not Seated Properly
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SAFETY
Not Seated Properly
Not Seated Properly
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WARNING!
• If a child restraint system, child, small teenager or
adult in the front passenger seat is seated improp-
erly, the occupant may provide an output signal to
the OCS that is different from the occupant’s prop-
erly seated weight input. This may result in serious
injury or death in a collision.
(Continued)
WARNING! (Continued)
• Always wear your seat belt and sit properly, with the
seatback in an upright position, your back against
the seatback, sitting upright, facing forward, in the
center of the seat, with your feet comfortably on or
near the floor.
• Do not carry or hold any objects (e.g., backpacks,
boxes, etc.) while seated in the front passenger seat.
Holding an object may provide an output signal to
the OCS that is different than the occupant’s prop-
erly seated weight input, which may result in serious
injury or death in a collision.
The Air Bag Warning Light
will illuminate whenever
the OCS is unable to classify the front passenger seat
status.
A malfunction in the OCS may affect the operation of the
air bag system. If the Air Bag Warning Light
does not
come on, or stays on after you start the vehicle, or it
comes on as you drive, take the vehicle to an authorized
dealer for service immediately.
Not Seated Properly
254
SAFETY
WARNING!
• Ignoring the Air Bag Warning Light in your instru-
ment panel could mean you won’t have the air bags
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 air bag system immediately.
• Placing an object on the floor under the front pas-
senger seat may prevent the OCS from working
properly, which may result in serious injury or death
in a collision. Do not place any objects on the floor
under the front passenger seat.
• If there is a fault present in the OCS, both the PAD
Indicator Light and the Air Bag Warning Light will
illuminate to show that the Passenger Advanced
Front Air Bag is deactivated. Should this occur, the
Passenger Advanced Front Air Bag will remain de-
activated until the fault is cleared. This indicates that
you should take the vehicle to an authorized dealer
for service immediately.
The passenger seat assembly contains critical OCS compo-
nents that may affect Passenger Advanced Front Air Bag
inflation. In order for the OCS to properly classify the
seated weight of a front seat passenger, the OCS compo-
nents must function as designed. Do not make any modi-
fications to the front passenger seat components, assembly,
or to the seat cover. If the seat, trim cover, or cushion needs
service for any reason, take the vehicle to your authorized
dealer. Only FCA US LLC approved seat accessories may
be used.
The following requirements must be strictly followed:
• Do not modify the front passenger seat assembly or
components in any way.
• Do not use prior or future model year seat covers or
cushions not designated by FCA US LLC for the specific
model being repaired. Always use the correct seat cover
and cushion specified for the vehicle.
• Do not replace the seat cover or cushion with an
aftermarket seat cover or cushion.
• Do not add a secondary seat cover or mat.
• At no time should any Supplemental Restraint System
(SRS) component or SRS related component or fastener
be modified or replaced with any part except those
which are approved by FCA US LLC.
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WARNING!
• Unapproved modifications or service procedures to
the passenger seat assembly, its related components,
seat cover, or cushion may inadvertently change the
air bag deployment in case of a frontal collision. This
could result in death or serious injury to the front
passenger if the vehicle is involved in a collision. A
modified vehicle may not comply with required
Federal Motor Vehicle Safety Standards (FMVSS)
and/or Canadian Motor Vehicle Safety Standards
(CMVSS).
• If it is necessary to modify the air bag system for
persons with disabilities, contact your authorized
dealer.
Knee Impact Bolsters
The Knee Impact Bolsters help protect the knees of the
driver and front passenger, and position the front occu-
pants for improved interaction with the front air bags.
WARNING!
• Do not drill, cut, or tamper with the knee impact
bolsters in any way.
• Do not mount any accessories to the knee impact
bolsters such as alarm lights, stereos, citizen band
radios, etc.
Supplemental Side Air Bags
Supplemental Seat-Mounted Side Air Bags (SABs)
This vehicle is equipped with Supplemental Seat-Mounted
Side Air Bags (SABs).
Supplemental Seat-Mounted Side Air Bags (SABs) are
located in the outboard side of the front seats. The SABs are
marked with a “SRS AIRBAG” or “AIRBAG” on a label or
on the seat trim on the outboard side of the seats.
The SABs may help to reduce the risk of occupant injury
during certain side impacts, in addition to the injury
reduction potential provided by the seat belts and body
structure.
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SAFETY
When the SAB deploys, it opens the seam on the outboard
side of the seatback’s trim cover. The inflating SAB deploys
through the seat seam into the space between the occupant
and the door. The SAB moves at a very high speed and
with such a high force that it could injure occupants if they
are not seated properly, or if items are positioned in the
area where the SAB inflates. Children are at an even greater
risk of injury from a deploying air bag.
WARNING!
Do not use accessory seat covers or place objects
between you and the Side Air Bags; the performance
could be adversely affected and/or objects could be
pushed into you, causing serious injury.
Side Impacts
The Side Air Bags are designed to activate in certain side
impacts. The Occupant Restraint Controller (ORC) deter-
mines whether the deployment of the Side Air Bags in a
particular impact event is appropriate, based on the severity
and type of collision. The side impact sensors aid the ORC in
determining the appropriate response to impact events. The
system is calibrated to deploy the Side Air Bags on the impact
side of the vehicle during impacts that require Side Air Bag
occupant protection. In side impacts, the Side Air Bags deploy
independently; a left side impact deploys the left Side Air
Bags only and a right-side impact deploys the right Side Air
Bags only. Vehicle damage by itself is not a good indicator of
whether or not Side Air Bags should have deployed.
The Side Air Bags will not deploy in all side collisions,
including some collisions at certain angles, or some side
collisions that do not impact the area of the passenger
Supplemental Seat-Mounted Side Air Bag Location
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257
compartment. The Side Air Bags may deploy during
angled or offset frontal collisions where the front air bags
deploy.
Side Air Bags are a supplement to the seat belt restraint
system. Side Air Bags deploy in less time than it takes to
blink your eyes.
WARNING!
• Occupants, including children, who are up against or
very close to Side Air Bags can be seriously injured
or killed. Occupants, including children, should
never lean on or sleep against the door, side win-
dows, or area where the side air bags inflate, even if
they are in an infant or child restraint.
• Seat belts (and child restraints where appropriate)
are necessary for your protection in all collisions.
They also help keep you in position, away from an
inflating Side Air Bag. To get the best protection
from the Side Air Bags, occupants must wear their
seat belts properly and sit upright with their backs
against the seats. Children must be properly re-
strained in a child restraint or booster seat that is
appropriate for the size of the child.
WARNING!
• Side Air Bags need room to inflate. Do not lean
against the door or window. Sit upright in the center
of the seat.
• Being too close to the Side Air Bags during deploy-
ment could cause you to be severely injured or
killed.
• Relying on the Side Air Bags alone could lead to
more severe injuries in a collision. The Side Air Bags
work with your seat belt to restrain you properly. In
some collisions, Side Air Bags won’t deploy at all.
Always wear your seat belt even though you have
Side Air Bags.
NOTE:
Air bag covers may not be obvious in the interior
trim, but they will open during air bag deployment.
Air Bag System Components
NOTE:
The Occupant Restraint Controller (ORC) monitors
the internal circuits and interconnecting wiring associated
with electrical Air Bag System Components listed below:
• Occupant Restraint Controller (ORC)
• Air Bag Warning Light
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SAFETY
• Steering Wheel and Column
• Instrument Panel
• Knee Impact Bolsters
• Driver and Front Passenger Air Bags
• Seat Belt Buckle Switch
• Supplemental Side Air Bags
• Front and Side Impact Sensors
• Seat Belt Pretensioners
• Seat Track Position Sensors
• Occupant Classification System
If A Deployment Occurs
The front air bags are designed to deflate immediately after
deployment.
NOTE:
Front and/or side air bags will not deploy in all
collisions. This does not mean something is wrong with the
air bag system.
If you do have a collision which deploys the air bags, any
or all of the following may occur:
• The air bag material may sometimes cause abrasions
and/or skin reddening to the occupants as the air bags
deploy and unfold. The abrasions 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 air bags deflate, you may see some smoke-like
particles. The particles are a normal by-product of the
process that generates the non-toxic gas used for air bag
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 manufacturer’s instructions for
cleaning.
Do not drive your vehicle after the air bags have deployed.
If you are involved in another collision, the air bags will
not be in place to protect you.
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WARNING!
Deployed air bags and seat belt pretensioners cannot
protect you in another collision. Have the air bags, seat
belt pretensioners, and the seat belt retractor assem-
blies replaced by an authorized dealer immediately.
Also, have the Occupant Restraint Controller System
serviced as well.
NOTE:
• Air bag covers may not be obvious in the interior trim,
but they will open during air bag deployment.
• After any collision, the vehicle should be taken to an
authorized dealer immediately.
Enhanced Accident Response System
In the event of an impact, 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 following functions:
• Cut off fuel to the engine (If Equipped)
• Cut off battery power to the electric motor (If Equipped)
• Flash hazard lights as long as the battery has power
• Turn on the interior lights, which remain on as long as
the battery has power or for 15 minutes from the
intervention of the Enhanced Accident Response Sys-
tem.
• Unlock the power door locks.
Your vehicle may also be designed to perform any of these
other functions in response to the Enhanced Accident
Response System:
• Turn off the Fuel Filter Heater, Turn off the HVAC
Blower Motor, Close the HVAC Circulation Door
• Cut off battery power to the:
• Engine
• Electric Motor (if equipped)
• Electric power steering
• Brake booster
• Electric park brake
• Automatic transmission gear selector
• Horn
• Front wiper
• Headlamp washer pump
260
SAFETY
NOTE:
After an accident, remember to cycle the ignition to
the STOP (OFF/LOCK) position and remove the key from
the ignition switch to avoid draining the battery. Carefully
check the vehicle for fuel leaks in the engine compartment
and on the ground near the engine compartment and fuel
tank before resetting the system and starting the engine. If
there are no fuel leaks or damage to the vehicle electrical
devices (e.g. headlights) after an accident, reset the system
by following the procedure described below.
Enhanced Accident Response System Reset
Procedure
In order to reset the Enhanced Accident Response System
functions after an event, the ignition switch must be
changed from ignition START or ON/RUN to ignition OFF.
Carefully check the vehicle for fuel leaks in the engine
compartment and on the ground near the engine compart-
ment and fuel tank before resetting the system and starting
the engine.
Maintaining Your Air Bag System
WARNING!
• Modifications to any part of the air bag system could
cause it to fail when you need it. You could be
injured if the air bag system is not there to protect
you. Do not modify the components or wiring, in-
cluding 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.
• It is dangerous to try to repair any part of the air bag
system yourself. Be sure to tell anyone who works on
your vehicle that it has an air bag system.
• Do not attempt to modify any part of your air bag
system. The air bag may inflate accidentally or may not
function properly if modifications are made. Take your
vehicle to an authorized dealer for any air bag 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 the air bag system for persons
with disabilities, contact your authorized dealer.
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