2015 JEEP GRAND 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 pressing 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.
48 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

•Supplemental Side Air Bags
•Supplemental Knee Air Bags
•Front and Side Impact Sensors
•Seat Belt Pretenioners
•Seat Belt Buckle Switch
•Seat Track Position Sensors
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 are embossed on the air bag covers.
Advanced Front Air Bag And Knee Bolster Locations
1—DriverAndPassengerAdvancedFrontAirBags2 — Passenger Knee Impact Bolster3—SupplementalDriverKneeAirBag/DriverKneeImpactBol-ster
68 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING!
•Being too close to the steering wheel or instrument
panel during Advanced Front Air Bag deployment
could cause serious injury, including death. Air
bags need room to inflate. Sit back, comfortably
extending your arms to reach the steering wheel or
instrument panel.
•Never place a rear-facing child restraint in front of
an air bag. A deploying Passenger Advanced 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.
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.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 69

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.
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.
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 Advanced 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.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 71

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
deploys the left Side Air Bags only and a right side
impact deploys the right Side Air Bags only.
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
compartment. The Side Air Bags may deploy during
angled or offset frontal collisions where the Advanced
Front Air Bags deploy.
Rollover Events
Side Air Bags are designed to activate in certain rollover
events. The ORC determines whether the deployment of
the Side Air Bags in a particular rollover event is appro-
priate, based on the severity and type of collision. 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 rollover events.
The rollover sensing-system determines if a rollover
76 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

▫Normal (Fixed Speed) Electronic Speed Control
Mode..............................215
!FORWARD COLLISION WARNING (FCW) WITH
MITIGATION — IF EQUIPPED............219
▫Forward Collision Warning (FCW) With
Mitigation Operation...................219
▫Turning FCW ON Or OFF...............221
▫Changing FCW And Active Braking Status. . . .222
▫FCW Limited Warning..................223
▫Service FCW Warning..................223
!PARKSENSE® REAR PARK ASSIST — IF
EQUIPPED...........................223
▫ParkSense® Sensors....................224
▫ParkSense® Warning Display.............224
▫ParkSense® Display....................225
▫Enabling And Disabling ParkSense®........229
▫Service The ParkSense® Rear Park Assist
System.............................229
▫Cleaning The ParkSense® System..........230
▫ParkSense® System Usage Precautions.......230
!PARKSENSE® FRONT AND REAR PARK ASSIST
— IF EQUIPPED.......................233
▫ParkSense® Sensors....................233
▫ParkSense® Warning Display.............234
▫ParkSense® Display....................234
▫Enabling And Disabling ParkSense®........238
▫Service The ParkSense® Park Assist System . . .239
▫Cleaning The ParkSense® System..........240
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 119

Illuminated Vanity Mirrors
To access an illuminated vanity mirror, flip down one of
the visors.
Lift the cover to reveal the mirror. The light will turn on
automatically.
Sun Visor “Slide-On-Rod” Feature — If Equipped
The sun visor “Slide-On-Rod” feature allows for addi-
tional flexibility in positioning the sun visor to block out
the sun.
1. Fold down the sun visor.
2. Unclip the visor from the center clip.
3. Pull the sun visor toward the inside rearview mirror to
extend it.
BLIND SPOT MONITORING (BSM) — IF
EQUIPPED
The Blind Spot Monitoring (BSM) system uses two radar-
based sensors, located inside the rear bumper fascia, to
detect highway licensable vehicles (automobiles, trucks,
motorcycles, etc.) that enter the blind spot zones from the
rear/front/side of the vehicle.Illuminated Vanity Mirror
134 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

When the vehicle is started, the BSM warning light will
momentarily illuminate in both outside rear view mirrors
to let the driver know that the system is operational. The
BSM system sensors operate when the vehicle is in any
forward gear or REVERSE and enters stand-by mode
when the vehicle is in PARK.
The BSM detection zone covers approximately one lane
width on both sides of the vehicle (12 ft or 3.8 m). The
zone length starts at the outside rear view mirror and
extends approximately 10 ft (3 m) beyond the rear
bumper of the vehicle. The BSM system monitors the
detection zones on both sides of the vehicle when the
vehicle speed reaches approximately 6 mph (10 km/h) or
higher and will alert the driver of vehicles in these areas.
NOTE:
•The BSM system does NOT alert the driver about
rapidly approaching vehicles that are outside the de-
tection zones.
Rear Detection Zones
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 135