2023 JEEP GRAND CHEROKEE sensor

164STARTING AND OPERATING
If the "PARKSENSE UNAVAILABLE SERVICE
REQUIRED" message appears in the instrument
cluster display, see an 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.
PARKSENSE SYSTEM USAGE
P
RECAUTIONS
NOTE:
Ensure that the front and rear fascia/bumper
are free of snow, ice, mud, dirt and debris to
keep the ParkSense system operating properly.
Jackhammers, large trucks, and other vibra -
tions could affect the performance of
ParkSense.
When you turn ParkSense off, the instrument
cluster will display “PARKSENSE OFF.” Further -
more, 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.
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) of 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.
WARNING!
Drivers must be careful when backing up even
when using ParkSense. Always check carefully
behind your vehicle, look behind you, and be
sure to check for pedestrians, animals, other
vehicles, obstructions, and blind spots before
backing up. You are responsible for safety and
must continue to pay attention to your
surroundings. Failure to do so can result in
serious injury or death.
Before using ParkSense, it is strongly recom -
mended that the ball mount and hitch ball
assembly be 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 vehicle 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.

23_WL_OM_EN_USC_t.book Page 164

STARTING AND OPERATING165
SIDE DISTANCE WARNING SYSTEM
The Side Distance Warning system detects the
presence of side obstacles near the vehicle using
the parking sensors located in the front and rear
fascia/bumpers.
Side Distance Warning Display
The Side Distance Warning screen will only be
displayed if this feature is enabled within Uconnect
Settings Úpage 204.
The system warns the driver with an acoustic
signal and, when enabled, with visual indications
on the instrument cluster display. When the vehicle is in DRIVE, the Side Distance
Warning volume/chime will match the Front
ParkSense volume and chime type.
When the vehicle is in REVERSE, the Side Distance
Warning volume/chime will match the Rear
ParkSense volume and chime type.NOTE:ParkSense will reduce the volume of the radio if on
when the system is sounding an audible tone. An
audible tone will only sound if a collision is
possible.
Activation/Deactivation
The system can operate only after driving a short
distance and if the vehicle speed is between 0 and
7 mph (0 and 11 km/h). The system can be
activated/deactivated via the Settings menu of the
Uconnect system. If the ParkSense System is
deactivated via the ParkSense hard switch, then
the Side Distance Warning system will
automatically be deactivated.
Message on the display for Side Distance Warning
feature:
“Wipe Sensors” — This message is displayed in the
case of a failure of the Side Distance Warning
system sensors. Free the bumpers of any
obstacles, ensure that the front and rear fascia/
bumper are free of snow, ice, mud, dirt and debris
to keep the ParkSense system operating properly.
“System Not Available” — This message is
displayed if the Side Distance Warning system is
not available. The failed operation of the system
might be due to the insufficient voltage from the
battery or other failures on the electrical system.
Contact an authorized dealer as soon as possible
to have the electrical system checked.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 recom
-
mended that the driver looks over his/her
shoulder when using ParkSense.
WARNING ALERTS
Distance
(inches/cm) Less than
12 inches
(30 cm)12 –
24 inches
(30–60 cm)
Arcs-Left Flashing Flashing
Arcs-Right Flashing Flashing
Audible Alert
Chime ContinuousFast audible
chime as the
objects get
close to the
vehicle
Radio Volume
Reduced Yes
Yes
4

23_WL_OM_EN_USC_t.book Page 165

166STARTING AND OPERATING
ParkSense Usage Precautions
Some conditions may influence the performance
of the Side Distance Warning system:
NOTE:
Ensure that the front and rear fascia/bumper
are free of snow, ice, mud, dirt and debris to
keep the ParkSense system operating properly.
Construction equipment, large trucks, and other
vibrations could affect the performance of
ParkSense.
When you turn ParkSense off, the message to
appear in the instrument cluster display will
read “PARKSENSE OFF.” Furthermore, once you
turn ParkSense off, it remains off until you turn
it on again, even if you cycle the ignition key.
ParkSense, when on, will reduce the volume of
the radio when it is sounding a tone.
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.
The presence of a tow hook without a trailer may
interfere with the correct operation of the
parking sensors. Before using the ParkSense system, it is recommended to remove the
removable tow hook ball assembly and any
attachments from the vehicle when it is not
used for towing operations.

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, providing audible/visual
instructions, and controlling the steering wheel.
The ParkSense Active Park Assist system is
defined as “semi-automatic” since the driver
maintains control of the accelerator, gear selector
and brakes. Depending on the driver's parking
maneuver selection, the ParkSense Active Park
Assist system is capable of maneuvering a vehicle
into a parallel or a perpendicular parking space on
either side (i.e., driver side or passenger side).
WARNING!
Drivers must be careful when backing up even
when using ParkSense. Always check carefully
behind your vehicle, look behind you, and be
sure to check for pedestrians, animals, other
vehicles, obstructions, and blind spots before
backing up. You are responsible for safety and
must continue to pay attention to your
surroundings. Failure to do so can result in
serious injury or death.
Before using ParkSense, it is strongly recom
-
mended that the ball mount and hitch ball
assembly be 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 vehicle 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!

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 recom -
mended that the driver looks over his/her
shoulder when using ParkSense.

23_WL_OM_EN_USC_t.book Page 166

STARTING AND OPERATING167
NOTE:
The driver is always responsible for controlling
the vehicle, responsible for any surrounding
objects, and must intervene as required.
The system is designed 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.
environmental conditions such as heavy rain,
snow, etc., or if searching for a parking space
that has surfaces that will absorb the ultrasonic
sensor waves).
New vehicles from the dealership must have at
least 30 miles (48 km) accumulated before the
ParkSense Active Park Assist system is fully cali -
brated and performs accurately. This is due to
the system’s dynamic vehicle calibration to
improve the performance of the feature. The
system will also continuously perform the
dynamic vehicle calibration to account for differ -
ences such as over or under inflated tires and
new tires.
ENABLING AND DISABLING THE
P
ARKSENSE ACTIVE PARK ASSIST
S
YSTEM
The ParkSense Active Park Assist system
can be enabled and disabled with the
ParkSense Active Park Assist switch,
located on the switch panel above the
Uconnect display.
To enable or disable the ParkSense Active Park
Assist system, push the ParkSense Active Park
Assist switch once (LED turns on). Pushing the
switch a second time will disable the system (LED
turns off).
The ParkSense Active Park Assist system will turn
off automatically for any of the following
conditions:
Parking maneuver is completed
Vehicle speed is greater than 18 mph
(30 km/h) when searching for a parking space
Vehicle speed is greater than 5 mph (7 km/h) during active steering guidance into the parking
space
Steering wheel is touched during active steering
guidance into the parking space
ParkSense Front and Rear Park Assist switch is
pushed
Driver's door is opened
Rear liftgate is opened
Electronic Stability Control/Anti-Lock Braking
System intervention
The ParkSense Active Park Assist system allows a
maximum number of shifts between DRIVE and
REVERSE. If the maneuver cannot be completed
within the maximum amount of shifts, the system
will cancel and the instrument cluster display will
instruct the driver to complete the maneuver
manually.
The ParkSense Active Park Assist system will only
operate and search for a parking space when the
following conditions are present:
Gear selector is in DRIVE
Ignition is in the RUN position
ParkSense Active Park Assist switch is activated
Driver's door is closed
Rear liftgate is closed
Vehicle speed is less than 15 mph (25 km/h)
The outer surface and the underside of the front
and rear fascias/bumpers are clean and clear
of snow, ice, mud, dirt or other obstruction
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170STARTING AND OPERATING
When the system instructs the driver to remove
their hands from the steering wheel, the driver
should check their surroundings and begin to
back up slowly.
The ParkSense Active Park Assist system will
allow a maximum of eight shifts between DRIVE
and REVERSE. If the maneuver cannot be
completed within eight shifts, the system will
cancel and the instrument cluster display will
instruct the driver to complete the maneuver
manually.
The system will cancel the maneuver if the
vehicle speed exceeds 5 mph (7 km/h) during
active steering guidance into the parking space.
The system will provide a warning to the driver
at 3 mph (5 km/h) that tells them to slow down.
The driver is then responsible for completing the
maneuver if the system is canceled.
If the system is canceled during the maneuver
for any reason, the driver must take control of
the vehicle.EXITING THE PARKING SPACE
NOTE:The function does not work for exiting a perpen -
dicular parking space, but only exiting parallel
parking spaces.
Activation
To activate this function, push the Active
ParkSense switch once. After selection, the system
activates and warns the driver on the instrument
cluster display about the operations that have to
be carried out to perform the maneuver correctly.
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 pedes -
trians, 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. Failure to do so can result in
serious injury or death.
Before using the ParkSense Active Park Assist
system, it is strongly recommended that the
ball mount and hitch ball assembly be discon -
nected 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
vehicle 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.

23_WL_OM_EN_USC_t.book Page 170

STARTING AND OPERATING171
Selection Of The Maneuver Side
Use the direction indicators to choose the direction
that you want to perform the maneuver. Use the
right arrow indicator to perform the maneuver to
the right side and use the left arrow indicator to
perform the maneuver to the left.
During the maneuver, the system instructs the
driver to shift to REVERSE, and operate the turn
signal in the direction you want to exit. Let go of the
steering wheel and use the brake or accelerator
pedals as instructed, while the system handles the
steering automatically for exiting the parking
space. If the driver continues to carry out a
voluntary or involuntary action on the steering
wheel during the exit maneuver (touching or
holding the steering wheel to prevent its
movement), the maneuver will be interrupted.

Shift To Reverse Then Move Backward Shift To Drive Then Move Forward

End Of Maneuver
The semi-automatic maneuver ends when the
display shows the message of a completed
maneuver. At the end of the maneuver, the system
gives back the vehicle control to the driver.
ACTIVE LANE MANAGEMENT SYSTEM —
IF EQUIPPED
ACTIVE LANE MANAGEMENT OPERATION
The Active Lane Management (ALM) system uses a
forward facing camera to detect lane markings or
road edges and to measure vehicle position within
the lane boundaries. It also uses the Blind Spot
Monitoring (BSM) sensors to detect vehicles in
adjacent lanes while the driver is preparing to
change lanes. The system is operational at speeds above 37 mph
(60 km/h) and below 112 mph (180 km/h).
When both lane markings are detected, and the
vehicle approaches (or crosses) the lane marking
with no turn signal applied, and the blind spot zone
is not occupied, the ALM system provides warnings
to prompt the driver to remain within the lane
boundaries. These warnings include a visual
warning in the instrument cluster along with
steering assist torque (if configured in Uconnect
Settings).
If the driver crosses the lane marking, the system
will either guide the vehicle back to the center of
the lane, provide a vibration in the steering wheel,
or both, depending on radio settings.
When both lane markings are detected, and the
driver uses the turn signal to indicate a lane
change, and a vehicle is detected in the BSM zone
on that side of the vehicle, the ALM system
provides a warning in the form of steering assist
and/or steering vibration (depending on radio
settings) to guide the vehicle back to the center of
the lane.NOTE:
The system will suppress visual warnings,
steering vibration (if selected in radio settings),
and steering assistance (if selected in radio
settings) when the driver activates the turn
signal, the blind spot zone is clear of vehicles,
and a lane change is occurring.
4

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180STARTING AND OPERATING
SERVICE THE NIGHT VISION SYSTEM
When service conditions are present, the following
fault messages may appear in the instrument
cluster display when the vehicle is placed in the ON
position.
If "Night Vision Unavailable Sensor Blocked"
appears in the instrument cluster display, make
sure the camera is clear of snow, ice, mud, dirt or
other debris. The camera is located in the upper
fascia/bumper, inside the driver side grille slot.
Clean the camera using a soft wet cloth or by
pressing the Clean Camera button in the Uconnect
system. If the message continues to appear after
cycling the ignition, see an authorized dealer.
If “Night Vision Temporarily Unavailable” or “Night
Vision Unavailable Service Required" appears in
the instrument cluster display after cycling the
ignition, see an authorized dealer.
The camera must be properly aligned to work
correctly. If the camera needs adjustment, see an
authorized dealer. Do not attempt to adjust the
camera yourself.
NOTE:Alignment and performance of the Night Vision
may be affected by aftermarket modifications.
Mopar® parts should be used to get the optimal
performance of this system.
NIGHT VISION SYSTEM LIMITATIONS
The Night Vision display is deactivated under the
following conditions:
Vehicle is shifted into REVERSE
The ignition is not in the ON/RUN position
The headlights are off and the vehicle speed is
greater than 8 mph (13 km/h)
The Night Vision display warnings are suppressed
under the following conditions:
Daylight hours
Temperatures above 86°F (30°C)
The system may not be fully functional in the
following situations:
On steep hills
On tight curves of the road
If the camera/sensor is damaged or blocked by
dirt, snow, ice, or other debris
In poor visibility conditions such as heavy fog,
rain, snow, or other weather conditions
If the vehicle has been modified with after -
market parts and/or accessories
NOTE:If any of these conditions are present, the system
does not need service.
WARNING!
Night Vision can only detect pedestrians and
animals located within the range of the
infrared camera.
Night Vision may not detect pedestrians or
animals and highlight them if:
They are not in an upright position, for
example if they are sitting or lying down, or
if the pedestrian is riding a bicycle
The figure in the display appears incom -
plete, for example because the pedes -
trian or animal is partially behind a vehicle
The pedestrian/animal is not directly
ahead in the coverage area
The pedestrian/animal is part of a group
The pedestrian is wearing certain types of
clothing
The pedestrian/animal is moving too
quickly through the field of view
The sensor is blocked by dirt, rain, snow,
or ice

23_WL_OM_EN_USC_t.book Page 180

SAFETY251
Electronic Brake Force Distribution (EBD)
EBD manages the distribution of the braking
torque between the front and rear axles by limiting
braking pressure to the rear axle. This is done to
prevent overslip of the rear wheels to avoid vehicle
instability, and to prevent the rear axle from
entering ABS before the front axle.
Electronic Roll Mitigation (ERM)
ERM anticipates the potential for wheel lift by
monitoring the driver’s steering wheel input and
the speed of the vehicle. When ERM determines
that the rate of change of the steering wheel angle
and vehicle’s speed are sufficient to potentially
cause wheel lift, it then applies the appropriate
brake and may also reduce engine power to lessen
the chance that wheel lift will occur. ERM can only
reduce the chance of wheel lift occurring during
severe or evasive driving maneuvers; it cannot
prevent wheel lift due to other factors, such as
road conditions, leaving the roadway, or striking
objects or other vehicles.
NOTE:ERM is disabled any time the ESC is in “Full Off”
mode (if equipped). See Ú page 251 for a
complete explanation of the available ESC modes.
Electronic Stability Control (ESC)
ESC enhances directional control and stability of
the vehicle under various driving conditions. ESC
corrects for oversteering or understeering of the
vehicle by applying the brake of the appropriate
wheel(s) to assist in counteracting the following
conditions. Engine power may also be reduced to
help the vehicle maintain the desired path.
Oversteer — when the vehicle is turning more
than appropriate for the steering wheel position.
Understeer — when the vehicle is turning less
than appropriate for the steering wheel position.
ESC uses sensors in the vehicle to determine the
vehicle path intended by the driver and compares
it to the actual path of the vehicle. When the actual
path does not match the intended path, ESC
applies the brake of the appropriate wheel to
assist in counteracting the oversteer or understeer
condition.
The ESC Activation/Malfunction Indicator Light
located in the instrument cluster will start to flash
as soon as the ESC system becomes active. The
ESC Activation/Malfunction Indicator Light also
flashes when the Traction Control System (TCS) is
active. If the ESC Activation/Malfunction Indicator
Light begins to flash during acceleration, ease up
on the accelerator and apply as little throttle as
possible. Be sure to adapt your speed and driving
to the prevailing road conditions.
WARNING!
Many factors, such as vehicle loading, road
conditions and driving conditions, influence the
chance that wheel lift or rollover may occur. ERM
cannot prevent all wheel lift or rollovers,
especially those that involve leaving the roadway
or striking objects or other vehicles. The
capabilities of an ERM-equipped vehicle must
never be exploited in a reckless or dangerous
manner which could jeopardize the user's safety
or the safety of others.
6

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