2015 JEEP CHEROKEE sensor

NOTE:
•In the event of a power malfunction to the liftgate, an
emergency liftgate latch release can be used to open
the liftgate. The emergency liftgate latch release can be
accessed through a snap-in cover located on the lift-
gate trim panel.
•If liftgate is left open for an extended period of time,
the liftgate may need to be closed manually to reset
power liftgate functionality.
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:
•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 pushing any of the power
liftgate switches.
•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.
50 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

•Steering Wheel and Column
•Instrument Panel
•Knee Impact Bolsters
•Advanced Front Air Bags
•Supplemental Side Air Bags
•Supplemental Knee Air Bags
•Front and Side Impact Sensors
•Seat Belt Pretenioners
•Seat Belt Buckle Switch
•Seat Track Position Sensors
•Occupant Classification System
Advanced Front Air Bags
This vehicle has Advanced Front Air Bags for both the
driver and front passenger as a supplement to the seat
belt restraint systems. The driver ’s Advanced Front Air
Bag is mounted in the center of the steering wheel. The
passenger ’s Advanced Front Air Bag is mounted in the
instrument panel, above the glove compartment. The
words “SRS AIRBAG” or “AIRBAG” are embossed on
the air bag covers.
66 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Advanced Front Air Bag Features
The Advanced Front Air Bag system has multistage
driver and front passenger air bags. 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 or other system components.
The first stage inflator is triggered immediately during an
impact that requires air bag deployment. A low energy
output is used in less severe collisions. A higher energy
output is used for more severe collisions.
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 Air Bags 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 buckled. The seat
belt buckle switch may adjust the inflation rate of the
Advanced Front Air Bags.
This vehicle is equipped with a right front passenger
Occupant Classification System (“OCS”) that is designed
to provide Passenger Advanced Front Air Bag output
appropriate to the occupant’s seated weight input, as
determined by the OCS.
WARNING!
•No objects should be placed over or near the air
bag on the instrument panel or steering wheel,
because any such objects could cause harm if the
vehicle is in a collision severe enough to cause the
air bags to inflate.
(Continued)
68 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING!(Continued)
•Do not put anything on or around the air bag
covers or attempt to open them manually. You may
damage the air bags and you could be injured
because the air bags may no longer be functional.
The protective covers for the air bag cushions are
designed to open only when the air bags are
inflating.
•Relying on the air bags alone could lead to more
severe injuries in a collision. The air bags work
with your seat belt to restrain you properly. In
some collisions, air bags won’t deploy at all. Al-
ways wear your seat belts even though you have air
bags.
Advanced Front Air Bag Operation
Advanced Front Air Bags are designed to provide addi-
tional protection by supplementing the seat belts. Ad-
vanced Front Air Bags are not expected to reduce the risk
of injury in rear, side, or rollover collisions. The Ad-
vanced Front Air Bags 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 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.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 69

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 air bag.
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.
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 Advanced
Front Air Bags fully inflate in less time than it takes to
blink your eyes. The 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 provide Passenger Ad-
vanced Front Air Bag output appropriate to the occu-
pant’s seated weight, as determined by the OCS.
The Occupant Classification System (OCS) consists of the
following:
•Occupant Restraint Controller (ORC)
•Occupant Classification Module (OCM) and Sensor
located in the front passenger seat
•Air Bag Warning Light
70 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Occupant Classification Module (OCM) and Sensor
The Occupant Classification Module (OCM) is located
underneath the front passenger seat. The Sensor is lo-
cated 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 pas-
senger ’s most probable classification. The OCM commu-
nicates this information to the ORC. The ORC may
reduce the inflation rate of the Passenger Advanced Front
Air Bag deployment based on occupant classification. In
order for the OCS to operate as designed, it is important
for the front passenger to be seated properly and prop-
erly wearing the seat belt.
The OCS will NOT prevent deployment of the Passenger
Advanced Front Air Bag. The OCS may reduce the
inflation rate of the Passenger Advanced Front Air Bag if
the OCS estimates that:
•The front passenger seat is unoccupied or has very
light objects on it; or
•The front passenger seat is occupied by a small pas-
senger, including a child; or
•The front passenger seat is occupied by a rear-facing
child restraint; or
•The front passenger is not properly seated or his or her
weight is taken off of the seat for a period of time.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 71

help keep you in position, away from inflating Side Air
Bags. 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 restrained 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.
(Continued)
WARNING!(Continued)
•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.
Side Impacts
In side impacts, 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
84 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

!PARKSENSE® REAR PARK ASSIST — IF
EQUIPPED...........................234
▫ParkSense® Sensors....................235
▫ParkSense® Warning Display.............235
▫ParkSense® Display....................235
▫Enabling And Disabling ParkSense®........240
▫Service The ParkSense® Rear Park Assist
System.............................241
▫Cleaning The ParkSense® System..........241
▫ParkSense® System Usage Precautions.......241
!PARKSENSE® FRONT AND REAR PARK ASSIST
— IF EQUIPPED.......................244
▫ParkSense® Sensors....................246
▫ParkSense® Warning Display.............247
▫ParkSense® Display....................247
▫Enabling And Disabling ParkSense®........256
▫Service The ParkSense® Park Assist System . . .257
▫Cleaning The ParkSense® System..........258
▫ParkSense® System Usage Precautions.......258
!PARKSENSE® ACTIVE PARK ASSIST SYSTEM —
IF EQUIPPED.........................261
▫Enabling And Disabling The ParkSense® Active
Park Assist System.....................262
▫Parallel Parking Space Assistance
Operation/Display.....................264
▫Perpendicular Parking Space Assistance
Operation/Display.....................274
!PARKVIEW® REAR BACK UP CAMERA — IF
EQUIPPED...........................286
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 127