2019 Ram ProMaster radiator cap

CAUTION!
Do not use a portable battery booster pack or any other
booster source with a system voltage greater than 12
Volts or damage to the battery, starter motor, alternator
or electrical system may occur.
Preparations For Jump Start
The vehicle’s jump starting remote posts are located under
the hood, in the engine compartment on the driver’s side.
The Remote Positive(+)Post is covered with a protective
cap located on the side of the Front Power Distribution
Center.
The Remote Negative (-)Post is located on the core support
closest to the front of the vehicle.
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.
(Continued)
Jump Starting Locations
(+) — Remote Positive Post
(-) — Remote Negative Post
214 IN CASE OF EMERGENCY

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.
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.
CAUTION!
Driving with a hot cooling system could damage your
vehicle. If the temperature gauge reads HOT (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 HOT
(H), and you hear continuous chimes, turn the engine
off immediately and call for service.
GEAR SELECTOR OVERRIDE
If a malfunction occurs and the gear selector cannot be
moved out of the PARK position, you can use the following
procedure to temporarily move the gear selector:
1. Turn the engine OFF.
2. Firmly apply the parking brake.
3. Using a small screwdriver or similar tool, remove the gear selector override access cover which is located
below the gear selector.
218 IN CASE OF EMERGENCY

WARNING!(Continued)
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.
Coolant Checks
Check the engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where appli-
cable). If the engine coolant (antifreeze) is dirty, the system
should be drained, flushed, and refilled with fresh OAT
coolant (conforming to MS-12106) only by an authorized
dealer. Check the front of the A/C condenser for any
accumulation of bugs, leaves, etc. If dirty, clean by gently
spraying water from a garden hose vertically down the face
of the condenser.
Cooling System — Drain, Flush And Refill
NOTE: Some vehicles require special tools to add coolant
properly. 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 an authorized dealer.
If the engine coolant (antifreeze) is dirty or contains visible
sediment, have an authorized dealer clean and flush with
OAT coolant (antifreeze) (conforming to MS.90032).
Refer to the “Maintenance Plan” in this section for the
proper maintenance intervals.
Selection Of Coolant
Refer to “Fluids And Lubricants” in “Technical Specifica-
tions” for further information.
8
SERVICING AND MAINTENANCE 239

•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 (anti-
freeze) 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
temperatures 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 autho-
rized 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 pos-
sible.
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.
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
overheated 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 speci-
fied for your vehicle. Personal injury or engine
damage may result.
8
SERVICING AND MAINTENANCE 241

Belts, Seat............................... .131
Body Builders Guide ..........................5
Body Mechanism Lubrication ..................236
B-Pillar Location .......................... .251
Brake Assist System .........................90
Brake Control System, Electronic ................89
Brake Fluid .......................... .243, 284
Brake, Parking ............................ .139
Brake System ......................... .243, 276
Anti-Lock (ABS) ..........................88
Fluid Check ........................... .243
Master Cylinder ........................ .243
Parking .............................. .139
Warning Light ...........................75
Brake/Transmission Interlock ..................142
Bulb Replacement ......................... .179
Bulbs, Light .......................... .133, 179
Camera, Rear ............................ .158
Capacities, Fluid .......................... .282
Caps, Filler Fuel ................................. .160
Oil (Engine) ........................... .229
Power Steering ......................... .150
Radiator (Coolant Pressure) .................241 Carbon Monoxide Warning
................130, 281
Cargo Area Cover ...........................57
Cargo Compartment .........................57
Cargo Light ...............................42
Car Washes .............................. .270
Certification Label ......................... .161
Change Oil Indicator .........................70
Changing A Flat Tire .....................194, 245
Chart, Tire Sizing .......................... .247
Check Engine Light (Malfunction Indicator Light) ....84
Checking Your Vehicle For Safety ...............130
Checks, Safety ............................ .130
Child Restraint ........................... .123
Child Restraints Booster Seats ........................... .126
Child

Seat Installation .....................128
Infant And Child Restraints .................125
Older Children And Child Restraints ...........125
Clean Air Gasoline ........................ .278
Cleaning Wheels ............................... .265
Climate Control ............................45
Manual ................................46
Rear ..................................49
Cold Weather Operation ..................... .137
12
INDEX 317

Compact Spare Tire........................ .263
Contract, Service .......................... .312
Cooling Pressure Cap (Radiator Cap) ............241
Cooling System ........................... .238
Adding Coolant (Antifreeze) .................240
Coolant Level ....................... .239, 242
Cooling Capacity ........................ .282
Disposal Of Used Coolant ..................242
Drain, Flush, And Refill ....................239
Inspection ............................. .242
Points To Remember ..................... .242
Pressure Cap ........................... .241
Radiator Cap .......................... .241
Selection Of Coolant (Antifreeze) ..........239, 282
Corrosion Protection ....................... .269
Cruise Light ...............................82
Cupholders ........................... .60, 273
Customer Assistance ....................... .310
Customer Programmable Features ...............287
Cybersecurity ............................ .286
Dealer Service ............................ .231
Defroster, Windshield ....................... .131
Diagnostic System, Onboard ....................83
Dimmer Control Switch .......................43 Dimmer Switch
Headlight ...............................39
Dipsticks Automatic Transmission ....................245
Power Steering ......................... .150
Disable Vehicle Towing ..................... .220
Disposal Antifreeze (Engine Coolant) .................242
Door Ajar .................................75
Door Ajar Light ............................75
Door Locks ................................22
Automatic ..............................23
Doors ....................................22
Driver ’s Seat Back Tilt ........................23
Driving Through Flowing, Rising, Or Shallow Standing
Water ................................ .175
Electrical

Power Outlets .......................60
Electric Brake Control System ...................89
Electric Remote Mirrors .......................36
Electronic Speed Control (Cruise Control) .........151
Electronic Stability Control (ESC) ................90
Electronic Throttle Control Warning Light ..........75
318 INDEX

Oil, Engine........................... .232, 282
Capacity .............................. .282
Change Interval ........................ .232
Dipstick .............................. .230
Disposal .............................. .233
Filter ............................. .233, 282
Filter Disposal .......................... .233
Identification Logo ...................... .232
Materials Added To ...................... .233
Pressure Warning Light .....................77
Recommendation .....................232, 282
Synthetic ............................. .233
Viscosity .......................... .232, 282
Oil Filter, Change ......................... .233
Oil Filter, Selection ......................... .233
Oil Pressure Light ...........................77
Onboard Diagnostic System ....................83
Operating Precautions ........................83
Operator Manual Owner’s Manual .......................5,314
Outside Rearview Mirrors ...................34, 35
Overheating, Engine ....................... .217
Paint Care ............................... .269
Parking Brake ............................ .139ParkSense System, Rear
..................... .154
Passing Light ..............................40
Pets ................................... .129
Placard, Tire And Loading Information ...........251
Power Mirrors ................................36
Outlet (Auxiliary Electrical Outlet) .............60
Steering ........................... .149, 150
Windows ...............................53
Power Steering Fluid ....................... .284
Pregnant Women And Seat Belts ................108
Preparation For Jacking ...................194, 200
Radial Ply Tires ........................... .257
Radiator Cap (Coolant Pressure Cap) .............241
Radio Frequency General
Information .................18, 21, 300
Rear Camera ............................. .158
Rear ParkSense System ..................... .154
Rearview Mirror ............................34
Recreational Towing ........................ .173
Reformulated Gasoline ...................... .278
Refrigerant .............................. .235
Release, Hood ..............................55
Reminder, Seat Belt ........................ .101
12
INDEX 323