2019 JEEP GRAND CHEROKEE LIMITED sensor

The automatic braking function is intended to assist the
driver in avoiding possible collisions with detected ob-
stacles when backing up in REVERSE gear.
NOTE:
•The driver is always responsible for controlling the
vehicle.
• The system is provided to assist the driver and not to
substitute the driver.
• The driver must stay in full control of the vehicle’s
acceleration and braking and is responsible for the
vehicle’s movements.
Refer to “ParkSense System Usage Precautions” for limita-
tions of this system and recommendations.
ParkSense will retain the last system state (enabled or
disabled) from the last ignition cycle when the ignition is
changed to the ON/RUN position.
ParkSense can be active only when the gear selector is in
REVERSE or DRIVE. If ParkSense is enabled at one of these
gear selector positions, the system will remain active until
the vehicle speed is increased to approximately 7 mph
(11 km/h) or above. The system will become active again if the vehicle speed is decreased to speeds less than approxi-
mately 6 mph (9 km/h). A display warning will appear in
the instrument cluster display if the vehicle is in REVERSE
and the speed exceeds 7 mph (11 km/h).
ParkSense Sensors
The four ParkSense sensors (or six, if equipped with Active
Park Assist), located in the rear fascia/bumper, monitor the
area behind the vehicle that is within the sensors’ field of
view. The sensors can detect obstacles from approximately
12 inches (30 cm) up to 79 inches (200 cm) from the rear
fascia/bumper in the horizontal direction, depending on
the location, type and orientation of the obstacle.
The six ParkSense sensors, located in the front fascia/
bumper, monitor the area in front of the vehicle that is
within the sensors’ field of view. The sensors can detect
obstacles from approximately 12 inches (30 cm) up to
47 inches (120 cm) from the front fascia/bumper in the
horizontal direction, depending on the location, type and
orientation of the obstacle.
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The ParkSense Warning screen is located within the instru-
ment cluster display. It provides visual warnings to indi-
cate the distance between the rear fascia/bumper and/or
front fascia/bumper and the detected obstacle. Refer to
“Instrument Cluster Display” in “Getting To Know Your
Instrument Panel” for further information.
Enabling And Disabling ParkSense
ParkSense can be enabled and disabled with the ParkSense
switch.When the ParkSense switch is pushed to disable
the system, the instrument cluster will display
the “PARKSENSE OFF” message for approxi-
mately five seconds. When the gear selector is
moved to REVERSE and the system is disabled, the instru-
ment cluster display will display the “PARKSENSE OFF”
message for as long as the vehicle is in REVERSE.
Refer to “Instrument Cluster Display” in “Getting To Know
Your Instrument Panel” for further information.
NOTE: When ParkSense is disabled and the gear selector is
moved to the DRIVE position, no warning message will be
displayed.
The ParkSense switch LED will be on when ParkSense is
disabled or requires service. The ParkSense switch LED will be off when the system is enabled. If the ParkSense
switch is pushed, and the system requires service, the
ParkSense switch LED will blink momentarily, and then
the LED will be on.
Service The ParkSense Park Assist System
During vehicle start up, when the ParkSense System has
detected a faulted condition, the instrument cluster will
actuate a single chime, once per ignition cycle, and it will
display the
PARKSENSE UNAVAILABLE WIPE REAR
SENSORS, PARKSENSE UNAVAILABLE WIPE FRONT
SENSORS,orthePARKSENSE UNAVAILABLE SERVICE
REQUIRED message for five seconds. When the gear
selector is moved to REVERSE and the system has detected
a faulted condition, the instrument cluster display will
display a PARKSENSE UNAVAILABLE WIPE REAR SEN-
SORS, PARKSENSE UNAVAILABLE WIPE FRONT SEN-
SORS orPARKSENSE UNAVAILABLE SERVICE RE-
QUIRED pop up message for five seconds. After five
seconds, a vehicle graphic will be displayed with UN-
AVAILABLE at either the front or rear sensor location
depending on where the fault is detected. The system will
continue to provide arc alerts for the side that is function-
ing properly. These arc alerts will interrupt the
PARKSENSE UNAVAILABLE WIPE REAR SENSORS,
PARKSENSE UNAVAILABLE WIPE FRONT SENSORS,
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orPARKSENSE UNAVAILABLE SERVICE REQUIRED
messages if an object is detected within the five second
pop-up duration. The vehicle graphic will remain dis-
played for as long as the vehicle is in REVERSE.
Refer to “Instrument Cluster Display” in “Getting To Know
Your Instrument Panel” for further information.
If PARKSENSE UNAVAILABLE WIPE REAR SENSORS
or PARKSENSE UNAVAILABLE WIPE FRONT SEN-
SORS appears in the instrument cluster display make sure
the outer surface and the underside of the rear fascia/
bumper and/or front fascia/bumper is clean and clear of
snow, ice, mud, dirt or other obstruction and then cycle the
ignition. If the message continues to appear see your
authorized dealer.
If the PARKSENSE UNAVAILABLE SERVICE RE-
QUIRED message appears in the instrument cluster dis-
play, see your authorized dealer.
Cleaning The ParkSense System
Clean the ParkSense sensors with water, car wash soap and
a soft cloth. Do not use rough or hard cloths. Do not scratch
or poke the sensors. Otherwise, you could damage the
sensors.
ParkSense System Usage Precautions
NOTE:
• Ensure that the front and rear bumper are free of snow,
ice, mud, dirt and debris to keep the ParkSense system
operating properly.
• Jackhammers, large trucks, and other vibrations could
affect the performance of ParkSense.
• When you turn ParkSense off, the instrument cluster
will display “PARKSENSE OFF.” Furthermore, once you
turn ParkSense off, it remains off until you turn it on
again, even if you cycle the ignition.
• When you move the gear selector to the REVERSE
position and ParkSense is turned off, the instrument
cluster will display “PARKSENSE OFF” for as long as
the vehicle is in REVERSE.
• ParkSense, when on, will reduce the volume of the radio
when it is sounding a tone.
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•Clean the ParkSense sensors regularly, taking care not to
scratch or damage them. The sensors must not be
covered with ice, snow, slush, mud, dirt or debris.
Failure to do so can result in the system not working
properly. The ParkSense system might not detect an
obstacle behind or in front of the fascia/bumper, or it
could provide a false indication that an obstacle is
behind or in front of the fascia/bumper.
• Use the ParkSense switch to turn the ParkSense system
off if objects such as bicycle carriers, trailer hitches, etc.
are placed within 12 inches (30 cm) from the rear
fascia/bumper. Failure to do so can result in the system
misinterpreting a close object as a sensor problem,
causing the “PARKSENSE UNAVAILABLE SERVICE
REQUIRED” message to be displayed in the instrument
cluster.
• ParkSense should be disabled when the liftgate is in the
open position. An opened liftgate could provide a false
indication that an obstacle is behind the vehicle.

CAUTION!
•ParkSense is only a parking aid and it is unable to
recognize every obstacle, including small obstacles.
Parking curbs might be temporarily detected or not
detected at all. Obstacles located above or below the
sensors will not be detected when they are in close
proximity.
• The vehicle must be driven slowly when using
ParkSense in order to be able to stop in time when an
obstacle is detected. It is recommended that the
driver looks over his/her shoulder when using
ParkSense.
PARKSENSE ACTIVE PARK ASSIST SYSTEM — IF
EQUIPPED
The ParkSense Active Park Assist system is intended to
assist the driver during parallel and perpendicular parking
maneuvers by identifying a proper parking space, provid-
ing audible/visual instructions, and controlling the steer-
ing wheel. The ParkSense Active Park Assist system is
defined as “semi-automatic” since the driver maintains control of the accelerator, gear selector and brakes. De-
pending on the driver’s parking maneuver selection, the
ParkSense Active Park Assist system is capable of maneu-
vering a vehicle into a parallel or a perpendicular parking
space on either side (i.e., driver side or passenger side).
NOTE:
•
The driver is always responsible for controlling the
vehicle, responsible for any surrounding objects, and
must intervene as required.
• The system is provided to assist the driver and not to
substitute the driver.
• During a semi-automatic maneuver, if the driver touches
the steering wheel after being instructed to remove their
hands from the steering wheel, the system will cancel,
and the driver will be required to manually complete the
parking maneuver.
• The system may not work in all conditions (e.g. envi-
ronmental conditions such as heavy rain, snow, etc., or if
searching for a parking space that has surfaces that will
absorb the ultrasonic sensor waves).
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WARNING!
•Drivers must be careful when performing parallel or
perpendicular parking maneuvers even when using
the ParkSense Active Park Assist system. Always
check carefully behind and in front of your vehicle,
look behind and in front of you, and be sure to check
for pedestrians, animals, other vehicles, obstructions,
and blind spots before backing up and moving
forward. You are responsible for safety and must
continue to pay attention to your surroundings. Fail-
ure to do so can result in serious injury or death.
• Before using the ParkSense Active Park Assist sys-
tem, it is strongly recommended that the ball mount
and hitch ball assembly is disconnected from the
vehicle when the vehicle is not used for towing.
Failure to do so can result in injury or damage to
vehicles or obstacles because the hitch ball will be
much closer to the obstacle than the rear fascia when
the loudspeaker sounds the continuous tone. Also,
the sensors could detect the ball mount and hitch
ball assembly, depending on its size and shape,
giving a false indication that an obstacle is behind
the vehicle.
CAUTION!
•The ParkSense Active Park Assist system is only a
parking aid and it is unable to recognize every
obstacle, including small obstacles. Parking curbs
might be temporarily detected or not detected at all.
Obstacles located above or below the sensors will
not be detected when they are in close proximity.
• The vehicle must be driven slowly when using the
ParkSense Active Park Assist system in order to be
able to stop in time when an obstacle is detected. It is
recommended that the driver looks over his/her
shoulder when using the ParkSense Active Park
Assist system.
LANESENSE — IF EQUIPPED
LaneSense Operation
The LaneSense system is operational at speeds above
37 mph (60 km/h) and below 112 mph (180 km/h). The
LaneSense system uses a forward looking camera to detect
lane markings and measure vehicle position within the
lane boundaries.
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Speed Control — If Equipped
•Do not use on hilly terrain or with heavy loads.
• When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
• Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
Cooling System
To reduce potential for engine and transmission overheat-
ing, take the following actions:
City Driving
•In city traffic — while stopped, place the transmission in
NEUTRAL, but do not increase engine idle speed. Highway Driving
•
Reduce speed.
• Temporarily turn off air conditioning.
SNOW PLOW
Snow plows, winches, and other aftermarket equipment
should notbe added to the front end of your vehicle. The
airbag crash sensors may be affected by the change in the
front end structure. The airbags could deploy unexpectedly
or could fail to deploy during a collision.

Off-Road Driving Tips
NOTE:Prior to off-road driving with non-Summit models
that are also equipped with an Off Road Package, remove
the lower fascia to prevent damage. The lower fascia is
attached to the lower part of the front fascia with seven
quarter turn fasteners and can be removed by hand. The
front license plate bracket must be removed first if
equipped. NOTE:
On Summit models the lower front fascia is not
removable.
Lower Front Fascia Removal:
1. Remove the seven quarter turn fasteners.
2. Starting on one side of the vehicle, disengage lower fascia from the upper fascia. Grasp the portion inside
the wheel well. Pulling it downwards and toward you,
separate the tabs from the slots in the upper fascia.
3. Continue working your way across the vehicle, separat- ing the remaining tabs from the slots in the upper fascia.
NOTE: Do not allow the lower fascia to freely hang from
the tabs in the opposite corner as damage to lower and
upper fascia may result.
4. Store the lower fascia in a safe location.
NOTE: It is recommend to also remove the radar sensor on
vehicle equipped to Adaptive Cruise Control (ACC). This
radar sensor is specifically calibrated to your vehicle and is
not interchangeable with other radar sensors.