2020 Ram ProMaster City cooling

7
DEALER SERVICE ........................................................... 248
Engine Oil ................................................................... 248
Engine Oil Filter ......................................................... 250
Engine Air Cleaner Filter ......................................... 250
Air Conditioner Maintenance ................................. 251
Body Lubrication ....................................................... 252
Windshield Wiper Blades ......................................... 252
Exhaust System ........................................................... 253
Cooling System .......................................................... 255
Brake System ............................................................... 260
Power Steering Fluid................................................... 261
Automatic Transmission ........................................... 261
Upfitter Connectors — If Equipped.......................... 263
 RAISING THE VEHICLE ............................................... 266
 TIRES................................................................................... 266
Tire Safety Information ............................................ 266
Tires — General Information .................................... 276
Tire Types ..................................................................... 282
Spare Tires — If Equipped ....................................... 283
Wheel And Wheel Trim Care ................................. 285
Tire Chains (Traction Devices) ................................. 287
Tire Rotation Recommendations ............................... 287 
DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES ...............................................288
Treadwear .....................................................................288
Traction Grades............................................................ 289
Temperature Grades ................................................... 289
 STORING THE VEHICLE .............................................289
 BODYWORK ......................................................................290
Protection From Atmospheric Agents ....................290
Body And Underbody Maintenance .........................290
Preserving The Bodywork .......................................... 291
 INTERIORS .......................................................................292
Seats And Fabric Parts ................................................292
Plastic And Coated Parts ............................................292
Leather Parts.................................................................293
Glass Surfaces ..............................................................293
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GETTING TO KNOW YOUR VEHICLE 57
air conditioning and manually adjust the blower and airflow
mode settings. Also, make sure to select only Panel, Bi-Level
or Floor modes.
NOTE:
• For Manual Climate Controls, if the system is in Mix orDefrost Mode, the A/C can be turned off, but the A/C
system shall remain active to prevent fogging of the
windows.
• If fog or mist appears on the windshield or side glass, select Defrost mode, and increase blower speed if needed.
• If your air conditioning performance seems lower than expected, check the front of the A/C condenser (located in
front of the radiator), for an accumulation of dirt or insects.
Clean with a gentle water spray from the front of the radi -
ator and through the condenser.
Recirculation
In cold weather, use of Recirculation mode may lead to
excessive window fogging. The Recirculation feature may be
unavailable if conditions exist that could create fogging on
the inside of the windshield. The recirculation mode is not
allowed in Defrost mode to improve window clearing oper -
ation. On systems with Manual Climate Controls (if equipped) the
Recirculation mode is not allowed in Defrost mode to
improve window clearing operation. Recirculation is
disabled automatically if this mode is selected. Attempting
to use Recirculation while in this mode causes the LED in the
control button to blink and then turns off.
Operating Tips
NOTE:
Refer to the chart at the end of this section for suggested
control settings for various weather conditions.
Summer Operation

The engine cooling system must be protected with a
high-quality antifreeze coolant to provide proper corrosion
protection and to protect against engine overheating. Organic
Additive Technology (OAT) coolant (conforming to MS.90032)
is recommended. Refer to “Fluids And Lubricants” in “Tech
-
nical Specifications” for proper coolant selection.

2
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58 GETTING TO KNOW YOUR VEHICLE
Winter Operation
To ensure the best possible heater and defroster perfor-
mance, make sure the engine cooling system is functioning
properly and the proper amount, type, and concentration of
coolant is used. Refer to “Fluids And Lubricants” in “Tech -
nical Specifications” for proper coolant selection. Use of the
air recirculation mode during Winter months is not recom -
mended because it may cause window fogging.
Vacation/Storage
Any time you store your vehicle or keep it out of service (i.e.,
vacation) for two weeks or more, run the air conditioning
system at idle for about five minutes in fresh air with the
blower setting on high. This will ensure adequate system
lubrication to minimize the possibility of compressor
damage when the system is started again. Window Fogging

Vehicle windows tend to fog on the inside of the glass in mild,
rainy and/or humid weather. Windows may frost on the inside
of the glass in very cold weather. To clear the windows, select
Defrost or Mix mode and increase the front blower speed. Do
not use the Recirculation mode without Air Conditioning (A/C)
for long periods, as fogging may occur.

CAUTION!
Failure to follow these cautions can cause damage to the
heating elements:
• Use care when washing the inside of the rear window. Do not use abrasive window cleaners on the interior
surface of the window. Use a soft cloth and a mild
washing solution, wiping parallel to the heating
elements. Labels can be peeled off after soaking with
warm water.
• Do not use scrapers, sharp instruments, or abrasive window cleaners on the interior surface of the window.
• Keep all objects a safe distance from the window.
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76 GETTING TO KNOW YOUR INSTRUMENT PANEL
Instrument Cluster Descriptions
1. Speedometer• Indicates vehicle speed.
2. Fuel Gauge
• The pointer shows the level of fuel in the fuel tankwhen the ignition switch is in the ON/RUN position.
• The fuel pump arrow symbol points to the side of the vehicle where the fuel door is located.
3. Temperature Gauge

• The temperature gauge shows engine coolant tempera-ture. Any reading within the normal range indicates that
the engine cooling system is operating satisfactorily.

• The pointer will likely indicate a higher temperature when driving in hot weather or up mountain grades. It
should not be allowed to exceed the upper limits of the
normal operating range.
WARNING!
A hot engine cooling system is dangerous. You or others
could be badly burned by steam or boiling coolant. You
may want to call an authorized dealer for service if your
vehicle overheats. If you decide to look under the hood
yourself, refer to “Cooling System Pressure Cap” in
“Servicing And Maintenance” and follow the warnings
under the Cooling System Pressure Cap paragraph.
CAUTION!
Driving with a hot engine cooling system could damage
your vehicle. If the temperature gauge reads “H,” pull
over and stop the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer drops back into
the normal range. If the pointer remains on the “H,” turn
the engine off immediately and call an authorized dealer
for service.
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SAFETY 153
Transporting Pets
Air Bags deploying in the front seat could harm your pet. An
unrestrained pet will be thrown about and possibly injured,
or injure a passenger during panic braking or in a collision.
Pets should be restrained in the rear seat (if equipped) in pet
harnesses or pet carriers that are secured by seat belts.
SAFETY TIPS
Transporting Passengers

NEVER TRANSPORT PASSENGERS IN THE CARGO AREA.

Exhaust Gas
The best protection against carbon monoxide entry into the
vehicle body is a properly maintained engine exhaust
system.
WARNING!
• Do not leave children or animals inside parked vehicles in hot weather. Interior heat build-up may cause
serious injury or death.

• It is extremely dangerous to ride in a cargo area, inside or outside of a vehicle. In a collision, people riding in these
areas are more likely to be seriously injured or killed.

• Do not allow people to ride in any area of your vehicle that is not equipped with seats and seat belts.
• Be sure everyone in your vehicle is in a seat and using a seat belt properly.
WARNING!
Exhaust gases can injure or kill. They contain carbon
monoxide (CO), which is colorless and odorless.
Breathing it can make you unconscious and can
eventually poison you. To avoid breathing (CO), follow
these safety tips:
• Do not run the engine in a closed garage or in confined areas any longer than needed to move your vehicle in or
out of the area.
• If you are required to drive with the trunk/liftgate/rear doors open, make sure that all windows are closed and
the climate control BLOWER switch is set at high
speed. DO NOT use the recirculation mode.
• If it is necessary to sit in a parked vehicle with the engine running, adjust your heating or cooling controls
to force outside air into the vehicle. Set the blower at
high speed.
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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.
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232 IN CASE OF EMERGENCY
1. Apply the parking brake, shift the automatic transmis-sion into PARK (P) and turn the ignition to STOP.
2. Turn off the heater, radio, and all unnecessary electrical accessories. 3. If using another vehicle to jump-start the battery, park the
vehicle within the jumper cables reach, apply the parking
brake and make sure the ignition is OFF.
Jump Starting Procedure
WARNING!
• Take care to avoid the radiator cooling fan whenever the hood is raised. It can start anytime the ignition
switch is ON. You can be injured by moving fan blades.
• Remove any metal jewelry such as rings, watch bands and bracelets that could make an inadvertent electrical
contact. You could be seriously injured.
• Batteries contain sulfuric acid that can burn your skin or eyes and generate hydrogen gas which is flammable
and explosive. Keep open flames or sparks away from
the battery.
WARNING!
Do not allow vehicles to touch each other as this could
establish a ground connection and personal injury could
result.
WARNING!
Failure to follow this jump starting procedure could
result in personal injury or property damage due to
battery explosion.
CAUTION!
Failure to follow these procedures could result in
damage to the charging system of the booster vehicle or
the discharged vehicle.
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234 IN CASE OF EMERGENCY
4. Disconnect the opposite end of the positive (+) jumper
cable from the positive (+) post of the vehicle with the
discharged battery.
If frequent jump starting is required to start your vehicle you
should have the battery and charging system inspected at an
authorized dealer.
IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate action.
• On the highways — slow down.
• In city traffic — while stopped, place the transmission in NEUTRAL (N), but do not increase the engine idle speed
while preventing vehicle motion with the brakes. NOTE:
There are steps that you can take to slow down an impending
overheat condition:
• If your Air Conditioner (A/C) is on, turn it off. The A/C
system adds heat to the engine cooling system and turning
the A/C off can help remove this heat.
• You can also turn the temperature control to maximum heat, the mode control to floor and the blower control to
high. This allows the heater core to act as a supplement to
the radiator and aids in removing heat from the engine
cooling system.
CAUTION!
Accessories plugged into the vehicle power outlets draw
power from the vehicle’s battery, even when not in use
(i.e., cellular devices, etc.). Eventually, if plugged in long
enough without engine operation, the vehicle’s battery
will discharge sufficiently to degrade battery life and/or
prevent the engine from starting.
WARNING!
You or others can be badly burned by hot engine coolant
(antifreeze) or steam from your radiator. If you see or
hear steam coming from under the hood, do not open the
hood until the radiator has had time to cool. Never try to
open a cooling system pressure cap when the radiator or
coolant bottle is hot.
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