2020 Ram ProMaster City sensor

176 STARTING AND OPERATING
ParkSense Rear Park Assist Sensors

The four ParkSense sensors, 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, in the horizontal
direction, from approximately 12 inches (30 cm) up to 55 inches
(140 cm) from the center of the rear fascia/bumper and up to
24 inches (60 cm) from the corners of the rear fascia/bumper,
depending on the location, type and orientation of the obstacle.

ParkSense Rear Park Assist Sensors Locations If several obstacles are detected, the ParkSense system indi
-
cates the nearest obstacle.
The minimum height of a detectable obstacle corresponds to
the maximum height of an obstacle that would clear the
underside of the vehicle during the parking maneuver.
ParkSense Rear Park Assist Alerts
If an obstacle is behind the vehicle when REVERSE gear is
engaged, an audible alert is activated.
The tones emitted by the loudspeaker inform the driver that
the vehicle is approaching an obstacle. The pauses between
the tones are directly proportional to the distance from the
obstacle. Pulses emitted in quick succession indicate the
presence of a very close obstacle. A continuous tone indicates
that the obstacle is less than 12 inches (30 cm) away.
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STARTING AND OPERATING 177
While audible signals are emitted, the audio system is
muted.
The audible signal is turned off immediately if the distance
increases. The tone cycle remains constant if the distance
measured by the inner sensors is constant. If this condition occurs
for the external sensors, the signal is turned off after three seconds
(stopping warnings during maneuvers parallel to walls).

ParkSense Rear Park Assist Failure Indications
A malfunction of the ParkSense sensors or system is indi
-
cated, during REVERSE gear engagement, by the instrument
panel warning icon.
The warning icon is illuminated and a message is
displayed on the instrument cluster display (if
equipped). Refer to “Warning Lights And
Messages” in “Getting To Know Your Instrument Panel” for
further information.

The sensors and wiring are tested continuously when the
ignition is in the MAR (ACC/ON/RUN) position. Failures are
indicated immediately if they occur when the system is on.

Even if the system is able to identify that a specific sensor is
in failure condition, the instrument cluster display shall
indicate that the ParkSense system is unavailable, without
reference to the sensor in failure condition. If even a single
sensor fails, the entire system must be disabled. The system
is turned off automatically.
Audible And Visual Signals Supplied By The Park
Assist System
SIGNAL MEANING INDICATION
Obstacle
Distance An obstacle
is present
within the sensors' field of view Audible signal
(dashboard
loudspeaker)
• Sound pulses emitted at a rate
that increases as the distance
decreases
• Emits continuous tone at
12 inches (30 cm)
• Adjustable volume level
programmable through personal
settings in the instrument cluster
display. Refer to “Instrument
Cluster Display” in “Getting To
Know Your Instrument Panel” for
further information.
Failure Sensor or
system
failures Visual Signal
(instrument panel)
• Icon appears on display
• Message is displayed on
instrument cluster display (if
equipped)
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178 STARTING AND OPERATING
(Continued)
Cleaning The ParkSense Rear Park Assist System
Clean the ParkSense sensors with water, car wash soap and
a soft cloth. Do not use rough or hard cloths. In washing
stations, clean sensors quickly while keeping the vapor jet/
high pressure washing nozzles at least 4 inches (10 cm) from
the sensors. Do not scratch or poke the sensors. Otherwise,
you could damage the sensors.
ParkSense Rear Park Assist System Usage
Precautions
NOTE:
• Ensure that the outer surface and the underside of the rearbumper is clean and clear of snow, ice, mud, dirt or other
obstruction to keep the ParkSense Rear Park Assist system
operating properly.
• Jackhammers, large trucks, and other vibrations could affect the performance of the ParkSense system.
• 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 the
fascia/bumper, or it could provide a false indication that
an obstacle is behind the fascia/bumper.
• Objects such as bicycle carriers, etc., must not be placed within 12 inches (30 cm) from the rear fascia/bumper
while driving the vehicle. Failure to do so can result in the
system misinterpreting a close object as a sensor problem,
causing a failure indication to be displayed in the instru -
ment cluster display.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.
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STARTING AND OPERATING 179
If it’s necessary to keep the ball mount and hitch ball
assembly mounted for a long period, it is possible to filter out
the ball mount and hitch ball assembly presence in sensor
field of view. The filtering operation must be performed only
by an authorized dealer.
PARKVIEW REAR BACK UP CAMERA
Your vehicle is equipped with the ParkView Rear Back Up
Camera that allows you to see an on-screen image of the rear
surroundings of your vehicle whenever the gear selector is
put into REVERSE. The image will be displayed on the
touchscreen display along with a caution note to “check
entire surroundings” across the top of the screen. After five
seconds this note will disappear. The ParkView camera is
located on the rear of the vehicle above the rear license plate.

The Rear Back Up Camera can also be activated when the
vehicle is not in REVERSE through the Uconnect System. Refer
to “Uconnect Settings” in “Multimedia” for further information.

NOTE:
If one of the rear cargo doors is not completely closed, the
Back Up Camera cannot provide an accurate image of the
area behind the vehicle. A dedicated message will appear on
the Uconnect display indicating the camera is not in the
correct position.
• Before using ParkSense, it is strongly recommended
that the ball mount and hitch ball assembly is 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 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!
• 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 Park -
Sense 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.
WARNING! (Continued)
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208 IN CASE OF EMERGENCY
F20–30 Amp Green Rear Defroster (If Equipped)
F21 –5 Amp Tan Key Unlock
F22 –10 Amp Red
Primary ECM Loads
F23 –20 Amp Yellow BSM System
F24 –5 Amp Tan BSM System, Positive Key and Steering Angle Sensor
F30 –15 Amp Blue 2nd Instrument Panel Power Outlet
F83 20 Amp Yellow –Fuel Pump
F84 –15 Amp Blue AT Module
F85 –15 Amp Blue Rear Power Outlet 12 Volts
F86 –15 Amp Blue IP Power Outlet 12 Volts
F87 –5 Amp Tan IBS
F88 –7.5 Amp Brown External Mirror Defrost (If Equipped)
Cavity
Maxi Fuse Mini Fuse Description
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SERVICING AND MAINTENANCE 279
Consult an authorized tire dealer for tire repairs and addi-
tional information.
Damaged Run Flat tires, or Run Flat tires that have experi -
enced a loss of pressure should be replaced immediately
with another Run Flat tire of identical size and service
description (Load Index and Speed Symbol). Replace the tire
pressure sensor as well as it is not designed to be reused.
Run Flat Tires — If Equipped
Run Flat tires allow you the capability to drive 50 miles
(80 km) at 50 mph (80 km/h) after a rapid loss of inflation
pressure. This rapid loss of inflation is referred to as the Run
Flat mode. A Run Flat mode occurs when the tire inflation
pressure is of/or below 14 psi (96 kPa). Once a Run Flat tire
reaches the run flat mode it has limited driving capabilities
and needs to be replaced immediately. A Run Flat tire is not
repairable. When a Run Flat tire is changed after driving
with underinflated tire condition, please replace the TPM
sensor as it is not designed to be reused when driven under
Run Flat mode 14 psi (96 kPa) condition. NOTE:
TPM Sensor must be replaced after driving the vehicle on a
flat tire condition.
It is not recommended driving a vehicle loaded at full
capacity or to tow a trailer while a tire is in the run flat mode.
See the Tire Pressure Monitoring” in the “Safety” chapter for
more information.
Tire Spinning
When stuck in mud, sand, snow, or ice conditions, do not
spin your vehicle's wheels above 30 mph (48 km/h) or for
longer than 30 seconds continuously without stopping.
Refer to “Freeing A Stuck Vehicle” in “In Case Of Emer
-
gency” for further information.
WARNING!
Fast spinning tires can be dangerous. Forces generated
by excessive wheel speeds may cause tire damage or
failure. A tire could explode and injure someone. Do not
spin your vehicle's wheels faster than 30 mph (48 km/h)
for more than 30 seconds continuously when you are
stuck, and do not let anyone near a spinning wheel, no
matter what the speed.
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