service Ram 4500 Chassis Cab 2019 Workshop Manual

324 STARTING AND OPERATING
Service The ParkSense Front/Rear Park Assist
System
During vehicle start up, when the Front/Rear ParkSense
System has detected a faulted condition, the instrument
cluster display will show the "Front/Rear ParkSense
Unavailable Service Required" or the "Front/Rear ParkSense
Unavailable Wipe Sensors" message.
When the gear selector is moved into REVERSE, a vehicle
graphic will show in the instrument cluster display, along
with the display overlay “Front/Rear ParkSense Unavail-
able Wipe Sensors.” If the system needs service, the display
overlay will read “Front/Rear ParkSense Unavailable
Service Required.” Under this condition, ParkSense will not
operate.
If "Front/Rear ParkSense Unavailable Wipe Sensors"
appears in the instrument cluster display make sure the
outer surface and the underside of the rear 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 an authorized dealer.
If "Front/Rear ParkSense Unavailable Service Required"
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. Otherwise, you could damage the
sensors.
ParkSense System Usage Precautions
NOTE:
• Ensure that the front and rear bumpers 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 move the gear selector to the REVERSE position and Front or Rear ParkSense is turned off, the instrument
cluster display will show "Off" on the vehicle graphic arcs.
This vehicle graphic will be displayed 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.

STARTING AND OPERATING 325
(Continued)
• Clean the ParkSense sensors regularly, taking care not toscratch 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 Park -
Sense system might not detect an obstacle behind or in
front of the fascia/bumper, or it could provide a false indi -
cation that an obstacle is behind or in front of the fascia/
bumper.
• Use the ParkSense switch to turn the ParkSense system off if obstacles such as bicycle carriers, trailer hitches, etc. are
placed within 18 inches (45 cm) from the rear fascia/
bumper. Failure to do so can result in the system misinter -
preting a close obstacle as a sensor problem, causing the
“Front/Rear ParkSense Unavailable Service Required”
message to be appear in the instrument 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.
• Before using ParkSense, it is strongly recommendedthat 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)
5

IN CASE OF EMERGENCY 367
If equipped, the overhead console contains an ASSIST and a
SOS button.
NOTE:
• Your vehicle may be transmitting data as authorized bythe subscriber.
• The SOS and ASSIST buttons will only function if you are connected to an operable LTE (voice/data) or 4G (data)
network. Other Uconnect services will only be operable if
your SiriusXM Guardian™ service is active and you are
connected to an operable LTE (voice/data) or 4G (data)
network. ASSIST Call
The ASSIST Button is used to automatically connect you to
any one of the following support centers:
• Roadside Assistance – If you get a flat tire, or need a tow,
just push the ASSIST button and you’ll be connected to
someone who can help. Roadside Assistance will know
what vehicle you’re driving and its location. Additional
fees may apply for roadside assistance.
• SiriusXM Guardian™ Customer Care – In-vehicle support for SiriusXM Guardian™.
• Vehicle Customer Care – Total support for all other vehicle issues.
SOS Call
1. Push the SOS Call button on the overhead console.
NOTE:
In case the SOS Call button is pushed in error, there will be a
ten second delay before the SOS Call system initiates a call to
a SOS operator. To cancel the SOS Call connection, push the
SOS call button on the overhead console or press the cancel -
lation button on the Device Screen. Termination of the SOS
Call will turn off the green LED light on the overhead
console.
WARNING!
ALWAYS obey traffic laws and pay attention to the road.
ALWAYS drive safely with your hands on the steering
wheel. You have full responsibility and assume all risks
related to the use of the features and applications in this
vehicle. Only use the features and applications when it is
safe to do so. Failure to do so may result in an accident
involving serious injury or death.
6

368 IN CASE OF EMERGENCY
(Continued)
2. The LED light located between the ASSIST and SOSbuttons on the overhead console will turn green once a
connection to a SOS operator has been made.
3. Once a connection between the vehicle and a SOS oper- ator is made, the SOS Call system may transmit the
following important vehicle information to a SOS oper -
ator:
• Indication that the occupant placed a SOS Call.
• The vehicle brand.
• The last known GPS coordinates of the vehicle.
4. You should be able to speak with the SOS operator through the vehicle audio system to determine if addi -
tional help is needed. NOTE:
• Your vehicle may be transmitting data as authorized bythe subscriber.
• Once a connection is made between the vehicle’s SOS Call system and the SOS operator, the SOS operator
may be able to open a voice connection with the vehicle
to determine if additional help is needed. Once the SOS
operator opens a voice connection with the vehicle’s
SOS Call system, the operator should be able to speak
with you or other vehicle occupants and hear sounds
occurring in the vehicle. The vehicle’s SOS Call system
will attempt to remain connected with the SOS operator
until the SOS operator terminates the connection.
5. The SOS operator may attempt to contact appropriate emergency responders and provide them with important
vehicle information and GPS coordinates.
WARNING!
ALWAYS obey traffic laws and pay attention to the road.
ALWAYS drive safely with your hands on the steering
wheel. You have full responsibility and assume all risks
related to the use of the features and applications in this
vehicle. Only use the features and applications when it is
safe to do so. Failure to do so may result in an accident
involving serious injury or death.
WARNING!
• If anyone in the vehicle could be in danger (e.g., fire or smoke is visible, dangerous road conditions or loca -
tion), do not wait for voice contact from an Emergency
Services Agent. All occupants should exit the vehicle
immediately and move to a safe location.

IN CASE OF EMERGENCY 369
(Continued)
SOS Call System Limitations
Vehicles sold in Mexico DO NOT have SOS Call system
capabilities.
SOS or other emergency line operators in Mexico may not
answer or respond to SOS system calls.
If the SOS Call system detects a malfunction, any of the
following may occur at the time the malfunction is detected,
and at the beginning of each ignition cycle:
• The overhead console light located between the ASSIST and SOS buttons will continuously be illuminated red.
• The Device Screen will display the following message: “Vehicle device requires service. Please contact your
dealer.”
• An In-Vehicle Audio message will state “Vehicle device requires service. Please contact your dealer.”
• Never place anything on or near the vehicle’s operable
network and GPS antennas. You could prevent oper -
able network and GPS signal reception, which can
prevent your vehicle from placing an emergency call.
An operable network and GPS signal reception is
required for the SOS Call system to function properly.
• The SOS Call system is embedded into the vehicle’s electrical system. Do not add aftermarket electrical
equipment to the vehicle’s electrical system. This may
prevent your vehicle from sending a signal to initiate
an emergency call. To avoid interference that can cause
the SOS Call system to fail, never add aftermarket
equipment (e.g., two-way mobile radio, CB radio, data
recorder, etc.) to your vehicle’s electrical system or
modify the antennas on your vehicle. IF YOUR
VEHICLE LOSES BATTERY POWER FOR ANY
REASON (INCLUDING DURING OR AFTER AN
ACCIDENT), THE UCONNECT FEATURES, APPS
AND SERVICES, AMONG OTHERS, WILL NOT
OPERATE.
WARNING! (Continued)
• Modifications to any part of the SOS Call system could
cause the air bag system to fail when you need it. You
could be injured if the air bag system is not there to
help protect you.
WARNING! (Continued)
6

370 IN CASE OF EMERGENCY
Even if the SOS Call system is fully functional, factors
beyond FCA US LLC’s control may prevent or stop the SOS
Call system operation. These include, but are not limited to,
the following factors:
• Delayed accessories mode is active.
• The ignition is in the OFF position.
• The vehicle’s electrical systems are not intact.
• The SOS Call system software and/or hardware aredamaged during a crash. • The vehicle battery loses power or becomes disconnected
during a vehicle crash.
• LTE (voice/data) or 4G (data) network and/or Global Positioning Satellite signals are unavailable or obstructed.
• Equipment malfunction at the SOS operator facility.
• Operator error by the SOS operator.
• LTE (voice/data) or 4G (data) network congestion.
• Weather.
• Buildings, structures, geographic terrain, or tunnels.
WARNING!
• Ignoring the overhead console light could mean you will not have SOS Call services. If the overhead console
light is illuminated, have your authorized dealer
service the SOS Call system immediately.
• The Occupant Restraint Control module turns on the air bag Warning Light on the instrument panel if a
malfunction in any part of the system is detected. If the
Air Bag Warning Light is illuminated, have your autho -
rized dealer service the Occupant Restraint Control
system immediately.
WARNING!
ALWAYS obey traffic laws and pay attention to the road.
ALWAYS drive safely with your hands on the steering
wheel. You have full responsibility and assume all risks
related to the use of the features and applications in this
vehicle. Only use the features and applications when it is
safe to do so. Failure to do so may result in an accident
involving serious injury or death.

372 IN CASE OF EMERGENCY
Exterior BulbsBulb Number
Low Beam (Halogen Reflector Headlamp) H11LL
High Beam (Halogen Reflector Headlamp) 9005LL
Low & High Beam (LED Reflector Headlamp) LED (Serviced At An Authorized Dealer)
Low & High Beam (LED Projector Headlamp) LED (Serviced At An Authorized Dealer)
Turn Signal / Front Position (Halogen Reflector Headlamp) 7444NA
Turn Signal / Front Position (LED Headlamps) LED (Serviced at authorized dealer)
Front Side Marker (Halogen Reflector Headlamp) W5W
Front Side Marker (LED Headlamps) LED (Serviced At An Authorized Dealer)
Front Fog Lamps (Halogen Reflector Headlamp) H11LL
Front Fog Lamps (LED Headlamps) LED (Serviced At An Authorized Dealer)
Side Indicators (Front And Side View Mirror) LED (Serviced at authorized dealer)
Center High Mounted Stop Lamp (CHMSL) 921
Cab Roof Marker Lamps 194NA
Box Off Tail Lamps – Stop/Turn/Tail/License Plate 1157
Box Off Tail Lamps – Back Up 1156

380 IN CASE OF EMERGENCY
3. Pull the bulb straight from it's socket and replace.Removing The Bulb From The Bulb SocketFUSES
WARNING!
• When replacing a blown fuse, always use an appro -
priate replacement fuse with the same amp rating as the
original fuse. Never replace a fuse with another fuse of
higher amp rating. Never replace a blown fuse with
metal wires or any other material. Do not place a fuse
inside a circuit breaker cavity or vice versa. Failure to
use proper fuses may result in serious personal injury,
fire and/or property damage.
• Before replacing a fuse, make sure that the ignition is off and that all the other services are switched off and/
or disengaged.
• If the replaced fuse blows again, contact an authorized dealer.
• If a general protection fuse for safety systems (air bag system, braking system), power unit systems (engine
system, transmission system) or steering system blows,
contact an authorized dealer.

IN CASE OF EMERGENCY 381
Power Distribution Center
The Power Distribution Center is located in the engine
compartment near the battery. This center contains cartridge
fuses, micro fuses, relays, and circuit breakers. A description
of each fuse and component may be stamped on the inside
cover, otherwise the cavity number of each fuse is stamped
on the inside cover that corresponds to the following chart.Power Distribution Center Location
Cavity Cartridge FuseMicro FuseDescription
F01 80 Amp Black –Rad Fan Control Module – If Equipped (DS 1500 Only)
F02 60 Amp Yellow –ABS Pump Motor (HD Only)
F03 60 Amp Yellow –Rad Fan – If Equipped
F04 50 Amp Red 400W Inverter – If Equipped (HD Only)
F05 40 Amp Green
50 Amp Red (Special
Services Vehicle (SSV)) –
Compressor For Air Suspension – If Equipped
F06 40 Amp Green –ABS Pump Motor (DS 1500 Only)
F07 40 Amp Green –Starter Solenoid
6

IN CASE OF EMERGENCY 383
F2030 Amp Pink –Passenger Door Module
F21 30 Amp Pink –Drive Train Control Module
F22 20 Amp Blue –Engine Control Module GPEC / Heavy Duty / Other –
If Equipped
F22 25 Amp White
(Cummins Diesel) –
PCM – If Equipped
F23 30 Amp Pink –CBC Feed # 1
F24 30 Amp Pink –Driver Door Module
F25 30 Amp Pink –Front Wiper
F26 30 Amp Pink –Antilock Brakes / Stability Control Module / Valves – If
Equipped (DS 1500 Only)
F28 20 Amp Blue –Trailer Tow Backup Lights – If Equipped
F29 20 Amp Blue –Trailer Tow Parking Lights – If Equipped
F30 30 Amp Pink –Trailer Tow Receptacle / Trailer Tow (Separate
E-Brake)/Trailer Tow (BUX)
F31 30 Amp Pink –Diesel Heater Control – If Equipped (DS 1500 LD Diesel)
F31 20 Amp Blue –Aux App SSV Only - If Equipped
F32 – –Aux Feed, Special Services Vehicle-If Equipped (DS 1500
Only)
F33 20 Amp Blue –Trans Control Module – If Equipped (HD Only)
Aux Feed, SSV Only (DS 1500 Only)
Cavity Cartridge Fuse
Micro FuseDescription
6