radiator cap Ram ProMaster City 2020 Owner's Manual

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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SERVICING AND MAINTENANCE 255
(Continued)
To minimize the possibility of catalytic converter damage:
• Do not interrupt the ignition when the transmission is ingear and the vehicle is in motion.
• Do not try to start the vehicle by pushing or towing the vehicle.
• Do not idle the engine with any ignition components disconnected or removed, such as when diagnostic testing,
or for prolonged periods during very rough idle or
malfunctioning operating conditions.
Cooling System
Engine Coolant Checks
Check the engine coolant (antifreeze) protection every
12 months (before the onset of freezing weather, where
applicable). If the engine coolant (antifreeze) is dirty, the
system should be drained, flushed, and refilled with fresh
OAT coolant (conforming to MS.90032) by an authorized
dealer. Check the front of the A/C condenser for any accu-
mulation of bugs, leaves, etc. If dirty, clean by gently
spraying water from a garden hose vertically down the face
of the condenser.
Check the engine cooling system hoses for brittle rubber,
cracking, tears, cuts, and tightness of the connection at the
coolant recovery bottle and radiator. Inspect the entire
system for leaks. DO NOT REMOVE THE COOLANT PRES -
SURE CAP WHEN THE COOLING SYSTEM IS HOT.
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 open a cooling system pressure cap when the
radiator or coolant bottle is hot.
• Keep hands, tools, clothing, and jewelry away from the radiator cooling fan when the hood is raised. The fan
starts automatically and may start at any time, whether
the engine is running or not.
• When working near the radiator cooling fan, discon -
nect the fan motor lead or turn the ignition to the OFF
mode. The fan is temperature controlled and can start at
any time the ignition is in the ON mode.
WARNING! (Continued)
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SERVICING AND MAINTENANCE 257
maintenance period, it is important that you use the same
engine coolant (OAT coolant conforming to MS.90032)
throughout the life of your vehicle.
Please review these recommendations for using Organic
Additive Technology (OAT) engine coolant (antifreeze) that
meets the requirements of FCA Material Standard MS.90032.
When adding engine coolant (antifreeze):
• We recommend using Mopar Antifreeze/Coolant 10Year/150,000 Mile (240,000 km) Formula OAT (Organic
Additive Technology) that meets the requirements of FCA
Material Standard MS.90032.
• Mix a minimum solution of 50% OAT engine coolant that meets the requirements of FCA Material Standard
MS.90032 and distilled water. Use higher concentrations
(not to exceed 70%) if temperatures below −34°F (−37°C)
are anticipated. Please contact an authorized dealer for
assistance.
• Use only high purity water such as distilled or deionized water when mixing the water/engine coolant (antifreeze)
solution. The use of lower quality water will reduce the
amount of corrosion protection in the engine cooling
system. NOTE:
• It is the owner's responsibility to maintain the proper level
of protection against freezing according to the tempera -
tures occurring in the area where the vehicle is operated.
• Some vehicles require special tools to add coolant prop -
erly. Failure to fill these systems properly could lead to
severe internal engine damage. If any coolant is needed to
be added to the system, please contact a local authorized
dealer.
• Mixing engine coolant (antifreeze) types is not recom -
mended and can result in cooling system damage. If
HOAT and OAT coolant are mixed in an emergency, have
a authorized dealer drain, flush, and refill with OAT
coolant (conforming to MS.90032) as soon as possible.
Cooling System Pressure Cap

The cap must be fully tightened to prevent loss of engine coolant
(antifreeze), and to ensure that engine coolant (antifreeze) will
return to the radiator from the coolant recovery tank.

The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
7
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258 SERVICING AND MAINTENANCE
The image on the coolant system pressure cap is a
reminder that the radiator contains hot engine
coolant under pressure.
Disposal Of Used Coolant
Used ethylene glycol-based coolant (antifreeze) is a regu-
lated substance requiring proper disposal. Check with your
local authorities to determine the disposal rules for your
community. To prevent ingestion by animals or children, do
not store ethylene glycol-based coolant in open containers or
allow it to remain in puddles on the ground. If ingested by a
child or pet, seek emergency assistance immediately. Clean
up any ground spills immediately. Coolant Level
The coolant expansion bottle provides a quick visual method
for determining that the coolant level is adequate. With the
engine OFF and cold, the level of the engine coolant (anti
-
freeze) in the bottle should be between the “MIN” and
“MAX” marks.
The radiator normally remains completely full, so there is no
need to remove the radiator/coolant pressure cap unless
checking for engine coolant (antifreeze) freeze point or
replacing coolant. Advise your service attendant of this. As
long as the engine operating temperature is satisfactory, the
coolant bottle need only be checked once a month.
When additional engine coolant (antifreeze) is needed to
maintain the proper level, only OAT coolant that meets the
requirements of FCA Material Standard MS.90032 should be
added to the coolant bottle. Do not overfill.
WARNING!
• Do not open hot engine cooling system. Never add engine coolant (antifreeze) when the engine is over -
heated. Do not loosen or remove the cap to cool an over -
heated engine. Heat causes pressure to build up in the
cooling system. To prevent scalding or injury, do not
remove the pressure cap while the system is hot or
under pressure.
• Do not use a pressure cap other than the one specified for your vehicle. Personal injury or engine damage may
result.
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336
B
Battery................................................................................. 86, 247 Charging System Light......................................................... 86
Keyless Key Fob Replacement ............................................ 15
Belts, Seat ................................................................................. 154
Body Builders Guide ................................................................ 12
Body Mechanism Lubrication ............................................... 252
B-Pillar Location...................................................................... 272
Brake Assist System .................................................................. 98
Brake Fluid ............................................................................... 304
Brake System ................................................................... 260, 295 Anti-Lock (ABS) .................................................................... 97
Fluid Check .................................................................. 260, 304
Master Cylinder................................................................... 260 Parking.................................................................................. 161
Warning Light ....................................................................... 85
Brake, Parking ......................................................................... 161
Brake/Transmission Interlock .............................................. 164
Bulb Replacement ................................................................... 200
Bulbs, Light ...................................................................... 156, 200 C
Camera, Rear ........................................................................... 179
Capacities, Fluid...................................................................... 301
Caps, Filler Fuel ........................................................................................ 181Oil (Engine) .................................................................. 245, 249 Power Steering .....................................................................171
Radiator (Coolant Pressure)...............................................257
Car Washes ..............................................................................291
Carbon Monoxide Warning ...........................................153, 300
Cargo Area Cover .....................................................................66
Cargo Area Features .................................................................66
Cargo Compartment .................................................................66
Cargo Tie-Downs ......................................................................66
Cellular Phone .........................................................................320
Certification Label ...................................................................182
Chains, Tire ..............................................................................287
Changing A Flat Tire ......................................................212, 266
Chart, Tire Sizing .................................................................... 268
Check Engine Light (Malfunction Indicator Light)..............95
Checking Your Vehicle For Safety ........................................153
Checks, Safety ..........................................................................153
Child Restraint.........................................................................133
Child Restraints Booster Seats ........................................................................137Child Seat Installation.................................................147, 151
How To Stow An unused ALR Seat Belt .........................144Infant And Child Restraints...............................................136
Locating The LATCH Anchorages ...................................142
Lower Anchors And Tethers For Children .....................139Older Children And Child Restraints ..............................136Seating Positions..................................................................138
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337
Clean Air Gasoline .................................................................. 297
CleaningWheels................................................................................... 285
Climate Control ......................................................................... 53
Cold Weather Operation........................................................ 158
Compact Spare Tire ................................................................ 283
Contract, Service ..................................................................... 331
Cooling Pressure Cap (Radiator Cap).................................. 257
Cooling System ....................................................................... 255 Adding Coolant (Antifreeze)............................................. 256
Coolant Level ....................................................................... 258Cooling Capacity................................................................. 301
Disposal Of Used Coolant.................................................. 258Drain, Flush, And Refill ..................................................... 256
Inspection ..................................................................... 255, 258
Points To Remember........................................................... 259
Pressure Cap ........................................................................ 257
Radiator Cap ........................................................................ 257
Selection Of Coolant (Antifreeze) ..................... 256, 301, 302
Corrosion Protection .............................................................. 290
Cruise Light ............................................................................... 93
Cupholders ................................................................................ 69
Customer Assistance .............................................................. 329
Customer Programmable Features....................................... 306
Cybersecurity .......................................................................... 305 D
Dealer Service ..........................................................................248
Defroster, Windshield ............................................................ 154
Diagnostic System, Onboard ...................................................94 Dipsticks Oil (Engine) ..........................................................................246
Power Steering .....................................................................171
Disable Vehicle Towing .........................................................238
Disposal Antifreeze (Engine Coolant) ..............................................258
Door Ajar ....................................................................................86 Door Ajar Light .........................................................................86
Door Locks .................................................................................22
Doors ...........................................................................................22
Driver’s Seat Back Tilt ..............................................................29
Driving Through Flowing, Rising, Or
Shallow Standing Water .....................................................197 E
Electric Brake Control System .................................................98
Electric Remote Mirrors ...........................................................41 Electrical Outlet, Auxiliary (Power Outlet) ...........................70
Electronic Range Select (ERS) ................................................170
Electronic Stability Control (ESC)...........................................99
Electronic Throttle Control Warning Light ...........................86
11
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342
Recommendation ........................................................ 249, 301
Synthetic ............................................................................... 249Viscosity ....................................................................... 249, 301
Onboard Diagnostic System .................................................... 94
Operating Precautions.............................................................. 94
Operator Manual Owner's Manual ............................................................ 11, 333
Outside Rearview Mirrors ....................................................... 39
Overheating, Engine ............................................................... 234 P
Paint Care ................................................................................. 290
Parking Brake .......................................................................... 161
ParkSense System, Rear ......................................................... 175
Passing Light ............................................................................. 44
Personal Settings ..................................................................... 306
Pets ............................................................................................ 153
Placard, Tire And Loading Information .............................. 272
Power Mirrors .................................................................................... 41
Steering ................................................................................. 171
Windows ................................................................................ 60
Power Steering Fluid .............................................................. 304
Pregnant Women And Seat Belts.......................................... 116
Preparation For Jacking ................................................. 212, 217
Pretensioners Seat Belts............................................................................... 117 R
Radial Ply Tires .......................................................................278
Radiator Cap (Coolant Pressure Cap) ..................................257
Radio Operation ......................................................................320
Rear Camera............................................................................. 179
Rear ParkSense System ..........................................................175
Recreational Towing ...............................................................195
Reformulated Gasoline........................................................... 297
Refrigerant................................................................................251
Release, Hood ............................................................................64 Reminder, Seat Belt .................................................................109
Remote Keyless Entry Programming Additional Key Fobs ...................................16
Remote Sound System (Radio) Controls .............................317
Replacement Bulbs..................................................................200
Replacement Keys .....................................................................19
Replacement Tires ...................................................................280
Reporting Safety Defects ........................................................333
Restraints, Child ......................................................................133
Restraints, Head ........................................................................34 Rotation, Tires..........................................................................287 S
Safety Checks Inside Vehicle .................................................154
Safety Checks Outside Vehicle ..............................................156
Safety Defects, Reporting .......................................................333
Safety Information, Tire .........................................................266
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