2020 Ram ProMaster City light

172 STARTING AND OPERATING
If necessary, add fluid to restore to the proper indicated
level. With a clean cloth, wipe any spilled fluid from all
surfaces. Refer to “Fluids And Lubricants” in “Technical
Specifications” for further information.
SPEED CONTROL — IF EQUIPPED
When engaged, the Speed Control takes over accelerator
operations at speeds greater than 25 mph (40 km/h).
The Speed Control buttons are located on the right side of the
steering wheel.Speed Control Buttons
To Activate
Push the on/off button to activate the Speed Control. The
cruise indicator light in the instrument cluster display will
illuminate. To turn the system off, push the on/off button a
second time. The cruise indicator light will turn off. The
system should be turned off when not in use.
CAUTION!
Do not use chemical flushes in your power steering
system as the chemicals can damage your power steering
components. Such damage is not covered by the New
Vehicle Limited Warranty.
1 — On/Off
2 — RES (+)/Resume/Accel
3 — SET (–)/Set Speed/Decel
4 — CAN/Cancel
2020_RAM_PROMASTER_CITY_OM_USA=GUID-7B6A7FCA-79B0-423F-95C5-ED2A949C3D13=1=en=.book Page 172

174 STARTING AND OPERATING
To Decrease Speed
When the Speed Control is set, you can decrease speed by
pushing the SET (-) button.
The speed decrement is dependent on the chosen speed unit
of U.S. (mph) or Metric (km/h):
U.S. Speed (mph)
• Pushing the SET (-) button once will result in a 1 mphdecrease in set speed. Each subsequent tap of the button
results in a decrease of 1 mph.
• If the button is continually pushed, the set speed will continue to decrease until the button is released, then the
new set speed will be established.
Metric Speed (km/h)
• Pushing the SET (-) button once will result in a 1 km/h decrease in set speed. Each subsequent tap of the button
results in a decrease of 1 km/h.
• If the button is continually pushed, the set speed will continue to decrease until the button is released, then the
new set speed will be established.To Accelerate For Passing
Press the accelerator as you would normally. When the pedal
is released, the vehicle will return to the set speed.
Using Speed Control On Hills
The transmission may downshift on hills to maintain the
vehicle set speed.
NOTE:
The Speed Control system maintains speed up and down
hills. A slight speed change on moderate hills is normal.
On steep hills, a greater speed loss or gain may occur so it
may be preferable to drive without Speed Control.
WARNING!
Speed Control can be dangerous where the system
cannot maintain a constant speed. Your vehicle could go
too fast for the conditions, and you could lose control
and have an accident. Do not use Speed Control in heavy
traffic or on roads that are winding, icy, snow-covered or
slippery.
2020_RAM_PROMASTER_CITY_OM_USA=GUID-7B6A7FCA-79B0-423F-95C5-ED2A949C3D13=1=en=.book Page 174

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)
5
2020_RAM_PROMASTER_CITY_OM_USA=GUID-7B6A7FCA-79B0-423F-95C5-ED2A949C3D13=1=en=.book Page 177

STARTING AND OPERATING 181
(Continued)
REFUELING THE VEHICLE
The gas cap is located behind the fuel filler door on the left
side of the vehicle. If the gas cap is lost or damaged, be sure
the replacement cap is for use with this vehicle.
1. Open the fuel filler door.
2. Remove the fuel cap by rotating it counterclockwise.Fuel Filler Cap NOTE:
The driver's side sliding door cannot be opened while the
fuel door is open. This feature operates only when the sliding
door is in a closed position prior to opening the fuel door.
3. Fully insert the gasoline nozzle into the filler pipe.
4. Fill the vehicle with fuel.
NOTE:
When the fuel nozzle “clicks” or shuts off, the fuel tank is
full.
5. Remove gasoline nozzle, reinstall fuel cap and close fuel
filler door.
WARNING!
• Never have any smoking materials lit in or near the vehicle when the gas cap is removed or the tank is
being filled.
• Never add fuel when the engine is running. This is in violation of most state and federal fire regulations and
may cause the “Malfunction Indicator Light (MIL)”to
turn on.
5
2020_RAM_PROMASTER_CITY_OM_USA=GUID-7B6A7FCA-79B0-423F-95C5-ED2A949C3D13=1=en=.book Page 181

182 STARTING AND OPERATING
NOTE:
• Tighten the fuel filler cap until you hear a “clicking”sound. This is an indication that the fuel filler cap is prop -
erly tightened.
• If the gas cap is not tightened properly, the MIL may come on. Be sure the gas cap is tightened every time the vehicle
is refueled.
VEHICLE LOADING
As required by National Highway Traffic Safety Administra -
tion regulations, your vehicle has a certification label affixed
to the driver's side door or B-Pillar.
If seats are removed for carrying cargo, do not exceed the
specified GVWR and GAWR.
Vehicle Certification Label
Your vehicle has a Vehicle Certification Label affixed to the
drivers side B-Pillar or the rear of the driver’s door.
The label contains the following information:
• Name of manufacturer
• Month and year of manufacture
• Gross Vehicle Weight Rating (GVWR)
• Gross Axle Weight Rating (GAWR) front
• Gross Axle Weight Rating (GAWR) rear
• Vehicle Identification Number (VIN)
• Type of vehicle
• Month, Day, and Hour of manufacture (MDH)
The bar code allows a computer scanner to read the VIN.
• A fire may result if gasoline is pumped into a portable
container that is inside of a vehicle. You could be
burned. Always place gas containers on the ground
while filling.
CAUTION!
• Damage to the fuel system or emissions control system could result from using an improper fuel tank filler
tube cap. A poorly fitting cap could let impurities into
the fuel system and may cause the “Malfunction Indi -
cator Light (MIL)” to turn on, due to fuel vapors
escaping from the system.
• To avoid fuel spillage and overfilling, do not “top off” the fuel tank after filling.
WARNING! (Continued)
2020_RAM_PROMASTER_CITY_OM_USA=GUID-7B6A7FCA-79B0-423F-95C5-ED2A949C3D13=1=en=.book Page 182

STARTING AND OPERATING 187
Trailer Hitch Classification
The following chart provides the industry standard for the maximum trailer weight a given trailer hitch class can tow and
should be used to assist you in selecting the correct trailer hitch for your intended towing condition.Trailer Hitch Classification Definitions
Class Max. Trailer Hitch Industry Standards
Class I - Light Duty 2,000 lbs (907 kg)
Class II - Medium Duty 3,500 lbs (1,587 kg)
Class III - Heavy Duty 5,000 lbs (2,267 kg)
Class IV - Extra Heavy Duty 10,000 lbs (4,535 kg)

Refer to the “Trailer Towing Weights (Maximum Trailer Weight Ratings)” chart for the Maximum Gross Trailer Weight (GTW)
towable for your given drivetrain.

All trailer hitches should be professionally installed on your vehicle.
5
2020_RAM_PROMASTER_CITY_OM_USA=GUID-7B6A7FCA-79B0-423F-95C5-ED2A949C3D13=1=en=.book Page 187

192 STARTING AND OPERATING
Towing Requirements — Trailer Lights And Wiring
Whenever you pull a trailer, regardless of the trailer size,
stoplights and turn signals on the trailer are required for
motoring safety.
The Trailer Tow Package may include a four- and seven-pin
wiring harness. Use a factory approved trailer harness and
connector.
NOTE:
Do not cut or splice wiring into the vehicle’s wiring harness.
The electrical connections are all complete to the vehicle but
you must mate the harness to a trailer connector. Refer to the
following illustrations.NOTE:
• Disconnect trailer wiring connector from the vehicle
before launching a boat (or any other device plugged into
vehicle’s electrical connect) into water.
• Be sure to reconnect once clear from water area.
Four-Pin Connector
CAUTION!
If the trailer weighs more than 1,000 lbs (453 kg) loaded,
it should have its own brakes and they should be of
adequate capacity. Failure to do this could lead to
accelerated brake lining wear, higher brake pedal effort,
and longer stopping distances.
1 — Female Pins
2 — Male Pin
3 — Ground
4 — Park
5 — Left Stop/Turn
6 — Right Stop/Turn
2020_RAM_PROMASTER_CITY_OM_USA=GUID-7B6A7FCA-79B0-423F-95C5-ED2A949C3D13=1=en=.book Page 192

194 STARTING AND OPERATING
Electronic Range Select (ERS)
• When using the ERS shift control, select the highest gearthat allows for adequate performance and avoids frequent
downshifts. For example, choose “5” if the desired speed
can be maintained. Choose “4” or “3” if needed to main -
tain the desired speed.
• To prevent excess heat generation, avoid continuous driving at high RPM. Reduce vehicle speed as necessary to
avoid extended driving at high RPM. Return to a higher
gear range or vehicle speed when grade and road condi -
tions allow.
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 over
-
heating, 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.
2020_RAM_PROMASTER_CITY_OM_USA=GUID-7B6A7FCA-79B0-423F-95C5-ED2A949C3D13=1=en=.book Page 194