2012 JEEP LIBERTY light

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 crashes,
and also are needed to help keep you in position, away
from an inflating air bag.
The ORC also monitors the readiness of the electronic
parts of the air bag system whenever the ignition switch
is in the START or ON/RUN positions. If the key is in the
LOCK position, in the ACC position, or not in the
ignition, the air bag system is not on and the air bags will
not inflate.
The ORC contains a backup power supply system that
may deploy the air bags even if the battery loses power or
it becomes disconnected prior to deployment.Also, the ORC turns on the “Air Bag Warning
Light” for four to eight seconds for a self-check
when the ignition is first turned to ON/RUN.
After the self-check, the “Air Bag Warning
Light” will turn off. If the ORC detects a malfunction in
any part of the system, it turns on the “Air Bag Warning
Light” either momentarily or continuously. A single
chime will sound if the light comes on again after initial
startup.
It also includes diagnostics that will illuminate the instru-
ment cluster Air Bag Warning Light if a malfunction is
noted that could affect the air bag system. The diagnos-
tics also record the nature of the malfunction.
66 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

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.
Occupant Classification System (OCS)
The OCS is part of a Federally regulated safety system
required for this vehicle. It is designed to turn off the
passenger Advanced Front Air Bag for an empty seat and
for occupants classified in a category other than an adult.
This could be a child, teenager, or even an adult.
NOTE:Children 12 years or younger should always
ride buckled up in a rear seat in an appropriate child
restraint.
•Occupant Classification Module (OCM)
The OCM is located 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 ORC. The ORC uses the
occupant category to determine whether the passenger
Advanced Front Air Bag should be turned off. It also
determines the rate of air bag inflation during a collision.
•Weight Sensors
Your vehicle has four Weight Sensors located between the
seat and the floor pan. The weight sensors measure
applied weight and transfers that information to the
OCM.
•Passenger Air Bag Disable (PAD) Indicator Light
The PAD Indicator Light (an amber light located in the
center of the instrument panel) tells the driver and front
passenger when the passenger Advanced Front Air Bag is
turned off. The PAD Indicator light illuminates the words
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 67

“PASS AIR BAG OFF” to show that the passenger
Advanced Front Air Bag will not inflate during a collision
requiring air bag deployment. When the right front
passenger seat is empty or when very light objects are
placed on the seat, the passenger air bag will not inflate
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 passen-
ger seat. In this case, the passenger Advanced Front Air
Bag is ready to be inflated if a collision requires an air bag
deployment.
For all other occupants, the PAD indicator light will be
illuminated indicating that the passenger Advanced
Front Air Bag is turned off and will not inflate.
NOTE:
Even though this vehicle is equipped with an
occupant classification system, children 12 years or
younger should always ride buckled up in a rear seat in
an appropriate child restraint (refer to “Child Re-
straints”).
Indicator Light Location
68 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING!
Never place a rear facing infant seat in front of an air
bag. A deploying passenger Advanced Front Air Bag
can cause death or serious injury to a child in a
rear-facing infant seat.
Passenger Air Bag Disable (PAD) System
Front Passenger Indicator Light Air Bag Status Adult OFFON
Child ONOFF
Grocery Bags,
Heavy Briefcases and Other Rela-
tively Light Objects ON
OFF
Empty or Very Light Objects OFF*
OFF
* Since the system senses weight, some small objects will turn the PAD Indicator Light on. 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 occupant’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 improp-
erly classified. Ensure that the front passenger seatback
does not touch anything placed on the second row of
seats because this can also affect occupant classification.
Also, if you fold down the seats in the second row check
to be sure they don’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.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 69

If there is a fault present in the air bag system, the Air Bag
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 have an autho-
rized dealer service the system immediately. The Air Bag
Warning Light is turned on whenever there is a fault that
can affect the operation of the air bag system. If there is a
fault present in the PAD Indicator Light, the Air Bag
Warning Light will be illuminated to show that the
passenger Advanced Front Air Bag may be turned off
until the fault is cleared. If the Air Bag Warning Light is
illuminated, have an authorized dealer service the air bag
system immediately. 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 Air Bag Warning Light. Once the lodged
object is removed, the fault will be automatically cleared
after a short period of time.Driver And Passenger Advanced Front Air Bag
Inflator Units
TheDriver And Passenger Advanced Front Air Bag
Inflator Units are located in the center of the steering
wheel and on the right side of the instrument panel.
When the ORC detects a collision requiring the Ad-
vanced Front Air Bags, it signals the inflator units. A large
quantity of non-toxic gas is generated to inflate the
Advanced Front Air Bags. Different air bag inflation rates
are possible based on collision severity and type. The
steering wheel hub trim cover and the upper right side of
the instrument panel separate and fold out of the way as
the air bags inflate to their full size. The air bags fully
inflate in about 50 to 70 milliseconds. This is about half of
the time it takes to blink your eyes. The air bags then
quickly deflate while helping to restrain the driver and
front passenger.
70 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING!
Unapproved modifications or service procedures to
the front passenger seat assembly, its related compo-
nents or seat cover may inadvertently change the air
bag deployment in case of a frontal crash. This could
result in death or serious injury to the front seat
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).
Front And Side Impact Sensors
In front and side impacts, impact sensors can aid the
ORC in determining appropriate response to impact
events.
Enhanced Accident Response System
In the event of an impact causing air bag 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.
In order to reset the Enhanced Accident Response System
functions after an event, the ignition switch must be
changed from IGN ON to IGN OFF.
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 73

WARNING! (Continued)
•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 includ-
ing 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 autho-
rized dealer.
•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.
Air Bag Warning Light
You will want to have the air bags ready to
inflate for your protection in a collision. The
Air Bag Warning Light monitors the internal
circuits and interconnecting wiring associated
with air bag system electrical components. While the air
bag system is designed to be maintenance free, if any of
the following occurs, have an authorized dealer service
the air bag system immediately.
•The Air Bag Warning Light does not come on during
the four to eight seconds when the ignition switch is
first turned to the ON/RUN position.
•The Air Bag Warning Light remains on after the four to
eight-second interval.
•The Air Bag Warning Light comes on intermittently or
remains on while driving.
76 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING! (Continued)
•If it is necessary to sit in a parked vehicle with the
engine running, adjust your heating or cooling
controls to force outside air into the vehicle. Set
the blower at high speed.
The best protection against carbon monoxide entry into
the vehicle body is a properly maintained engine exhaust
system.
Whenever a change is noticed in the sound of the exhaust
system, when exhaust fumes can be detected inside the
vehicle, or when the underside or rear of the vehicle is
damaged, have a competent mechanic inspect the com-
plete exhaust system and adjacent body areas for broken,
damaged, deteriorated, or mispositioned parts. Open
seams or loose connections could permit exhaust fumes
to seep into the passenger compartment. In addition,
inspect the exhaust system each time the vehicle is raised
for lubrication or oil change. Replace as required.
Safety Checks You Should Make Inside The
Vehicle
Seat Belts
Inspect the belt system periodically, checking for cuts,
frays, and loose parts. Damaged parts must be replaced
immediately. Do not disassemble or modify the system.
Front seat belt assemblies must be replaced after a
collision. Rear seat belt assemblies must be replaced after
a collision if they have been damaged (i.e., bent retractor,
torn webbing, etc.). If there is any question regarding belt
or retractor condition, replace the belt.
Air Bag Warning Light
The light should come on and remain on for four to eight
seconds as a bulb check when the ignition switch is first
turned ON. If the light is not lit during starting, see your
authorized dealer. If the light stays on, flickers, or comes
on while driving, have the system checked by an autho-
rized dealer.
90 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE