2022 RAM PROMASTER CITY radiator cap

IN CASE OF EMERGENCY183
Disconnecting The Jumper Cables

1. Disconnect the negative
(-)
end of the jumper
cable from the engine ground of the vehicle
with the discharged battery.

2. Disconnect the opposite end of the negative (-)
jumper cable from the negative (-) post of the
booster battery.
3. Disconnect the positive (+) end of the jumper
cable from the positive (+) post of the booster
battery.
4. Disconnect the opposite end of the positive (+)
jumper cable from the positive (+) post of the
vehicle with the discharged battery, and
reinstall the protective cap.
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
If the vehicle is overheating, it will need to be
serviced by an authorized dealer.
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 trans -
mission 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.
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.
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SERVICING AND MAINTENANCE199
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being
assessed against you.
In unusual situations involving grossly
malfunctioning engine operation, a scorching odor
may suggest severe and abnormal catalyst
overheating. If this occurs, stop the vehicle, turn off
the engine and allow it to cool. Service, including a
tune-up to manufacturer's specifications, should
be obtained immediately.
To minimize the possibility of catalytic converter
damage:
Do not interrupt the ignition when the transmis -
sion is in gear 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 compo -
nents disconnected or removed, such as when
diagnostic testing, or for prolonged periods
during very rough idle or malfunctioning oper -
ating 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 is
dirty, the system should be drained, flushed, and
refilled with fresh Organic Additive Technology
(OAT) coolant (conforming to MS.90032) 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.
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 PRESSURE 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 radi -
ator 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,
disconnect the fan motor lead or turn the igni -
tion to the OFF position. The fan is tempera -
ture controlled and can start at any time the
ignition is in the ON position.
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SERVICING AND MAINTENANCE201
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 a local authorized
dealer.
Mixing engine coolant types is not recom -
mended and can result in cooling system
damage. If HOAT and OAT coolant are mixed in
an emergency, have an 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, and to ensure that engine coolant
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.
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 is a regulated
substance requiring proper disposal. Check with
your local authorities to determine the disposal
rules for your community. To prevent ingestion, do
not store ethylene glycol-based coolant in open
containers or allow it to remain in puddles on the
ground, clean up immediately. If ingested, seek
emergency assistance 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 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
freeze point or replacing coolant. Advise an
authorized dealer of this. As long as the engine
operating temperature is satisfactory, the coolant
only needs to be checked once a month.
When additional engine coolant is needed to
maintain the proper level, only OAT coolant that
meets the requirements of the manufacturer
Material Standard MS.90032 should be added to
the coolant bottle. Do not overfill.WARNING!
Do not open a hot engine cooling system.
Never add engine coolant (antifreeze) when
the engine is overheated. 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
specified for your vehicle. Personal injury or
engine damage may result.
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202SERVICING AND MAINTENANCE
(Continued)
Cooling System Notes
NOTE:When the vehicle is stopped after a few miles/kilo-
meters of operation, you may observe vapor
coming from the front of the engine compartment.
This is normally a result of moisture from rain,
snow, or high humidity accumulating on the
radiator and being vaporized when the thermostat
opens, allowing hot engine coolant to enter the
radiator.
If an examination of your engine compartment
shows no evidence of radiator or hose leaks, the
vehicle may be safely driven. The vapor will soon
dissipate.
Do not overfill the coolant expansion bottle.
Check the coolant freeze point in the radiator
and in the coolant expansion bottle. If engine
coolant needs to be added, the contents of the
coolant expansion bottle must also be protected
against freezing.
If frequent engine coolant additions are
required, the cooling system should be pressure
tested for leaks.
Maintain engine coolant concentration at a
minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corro -
sion protection of your engine which contains
aluminum components.
Make sure that the coolant expansion bottle
overflow hoses are not kinked or obstructed.
Keep the front of the radiator clean. If your
vehicle is equipped with air conditioning, keep
the front of the condenser clean.
Do not change the thermostat for Summer or
Winter operation. If replacement is ever neces -
sary, install ONLY the correct type thermostat.
Other designs may result in unsatisfactory
engine cooling performance, poor gas mileage,
and increased emissions.
BRAKE SYSTEM
In order to ensure brake system performance, all
brake system components should be inspected
periodically. For the proper maintenance intervals
Ú page 190.
Brake Master Cylinder
The fluid in the master cylinder should be checked
when performing under hood services or
immediately if the Brake Warning Light is
illuminated.
Be sure to clean the top of the master cylinder area
before removing the cap. If necessary, add fluid to
bring the fluid level up to the requirements
described on the brake fluid reservoir. With disc
brakes, fluid level can be expected to fall as the
brake pads wear. Brake fluid level should be
checked when pads are replaced. However, low
fluid level may be caused by a leak and a checkup
may be needed. Use only the manufacturer
recommended brake fluid Ú page 241.
WARNING!
Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting
or riding on the brake pedal can result in
abnormally high brake temperatures, excessive
lining wear, and possible brake damage. You
would not have your full braking capacity in an
emergency.
WARNING!
Use only the manufacturer recommended
brake fluid Úpage 241. Using the wrong type
of brake fluid can severely damage your brake
system and/or impair its performance. The
proper type of brake fluid for your vehicle is
also identified on the original factory installed
hydraulic master cylinder reservoir.

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247
C
Camera, Rear
.................................................. 65Capacities, Fluid............................................ 240Caps, Filler Fuel............................................................. 66Oil (Engine)................................................ 193Power Steering............................................ 60Radiator (Coolant Pressure)...................... 201Car Washes................................................... 234Carbon Monoxide Warning............................ 170Cargo Area Cover............................................. 37Cargo Compartment........................................ 37Cargo Tie-Downs.............................................. 37Certification Label........................................... 67Chains, Tire.................................................... 232Changing A Flat Tire....................................... 171Chart, Tire Sizing............................................ 218Check Engine Light (Malfunction
Indicator Light)................................................ 51Checking Your Vehicle For Safety.................. 168Checks, Safety............................................... 168Child Restraint............................................... 152Child RestraintsBooster Seats............................................ 155Child Seat Installation..................... 164, 166How To Stow An unused ALR Seat Belt..... 161Infant And Child Restraints....................... 154
Locating The LATCH Anchorages.............. 160Lower Anchors And Tethers For Children.. 157Older Children And Child Restraints......... 154Seating Positions...................................... 156Clean Air Gasoline......................................... 238CleaningWheels..................................................... 231Climate Control................................................ 28Cold Weather Operation.................................. 52Compact Spare Tire...................................... 229Contract, Service.......................................... 243Cooling Pressure Cap (Radiator Cap)............ 201Cooling System............................................. 199Adding Coolant (Antifreeze)...................... 200Coolant Level............................................ 201Cooling Capacity....................................... 240Disposal Of Used Coolant......................... 201Drain, Flush, And Refill............................. 200Inspection........................................ 199, 201Points To Remember................................ 202Pressure Cap............................................ 201Radiator Cap............................................ 201Selection Of Coolant (Antifreeze)..... 200, 240Corrosion Protection..................................... 233Cruise Light...................................................... 50Customer Assistance.................................... 242Customer Programmable Features.................. 79Cybersecurity................................................... 78
D
Defroster, Windshield................................... 168Deleting A Phone........................................... 104Diagnostic System, Onboard............................50DipsticksOil (Engine)............................................... 194Power Steering............................................60Disable Vehicle Towing................................. 187Disconnecting............................................... 104DisplayedValues..........................................................44DisposalAntifreeze (Engine Coolant)...................... 201Door Ajar..........................................................45Door Ajar Light.................................................45Door Locks.......................................................13Doors...............................................................13Driver’s Seat Back Tilt......................................16DrivingThrough Flowing, Rising, Or Shallow Standing Water
.......................................76
E
Electric Brake Control System....................... 132Electric Remote Mirrors...................................23Electrical Outlet, Auxiliary (Power Outlet).........32Electronic Range Select (ERS).........................5911

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251
Power Steering Fluid
...................................... 241Pregnant Women And Seat Belts...................142Preparation For Jacking................................. 171Pretensioners Seat Belts.................................................. 142
R
Radial Ply Tires.............................................. 226Radiator Cap (Coolant Pressure Cap)............ 201Radio Operation............................................ 130Rear Camera................................................... 65Rear ParkSense System.................................. 62Recreational Towing........................................ 75Reformulated Gasoline.................................. 238Refrigerant.................................................... 197Release, Hood................................................. 36Reminder, Seat Belt...................................... 138Remote Keyless EntryProgramming Additional Key Fobs.............. 11Remote Sound System (Radio) Controls........ 128Replacement Bulbs....................................... 213Replacement Keys........................................... 11Replacement Tires......................................... 228Reporting Safety Defects............................... 244Restraints, Child............................................ 152Restraints, Head.............................................. 19Rotation, Tires............................................... 232
S
Safety Checks Inside Vehicle........................ 168Safety Checks Outside Vehicle..................... 169Safety Defects, Reporting............................. 244Safety Information, Tire................................ 217Safety Tips.................................................... 168Safety, Exhaust Gas...................................... 170Satellite Radio................................................. 92Schedule, Maintenance................................ 189Seat Belts............................................ 138, 168Adjustable Shoulder Belt.......................... 141Adjustable Upper Shoulder Anchorage..... 141
Adjustable Upper Shoulder Belt Anchorage.. 141
Child Restraints........................................ 152Energy Management Feature................... 142Front Seat............................... 138, 139, 140Inspection................................................. 168Lap/Shoulder Belt Operation.................... 140Lap/Shoulder Belt Untwisting................... 141Lap/Shoulder Belts.................................. 139Operating Instructions.............................. 140Pregnant Women...................................... 142Pretensioners........................................... 142Rear Seat................................................. 139Reminder............................................46, 138Seat Belt Pretensioner............................. 142Untwisting Procedure............................... 141
Seats................................................................16Adjustment..................................................16Heated.........................................................18Rear Folding................................................16Tilting...........................................................16Selection Of Coolant (Antifreeze).................. 240Sentry Key (Immobilizer)..................................12Service Assistance........................................ 242Service Contract............................................ 243Service Manuals........................................... 245Settings, Audio.................................................96Shift Lever Override...................................... 184ShiftingAutomatic Transmission..............................56Shoulder Belts.............................................. 139Signals, Turn.......................................... 49, 170Sirius Satellite Radio........................................92Favorites......................................................95Replay..........................................................93SiriusXM Satellite RadioBrowse in SXM.............................................95Favorites......................................................95Replay..........................................................93Snow Chains (Tire Chains)............................ 232Snow Tires.................................................... 229Spare Tires........................................... 229, 230SpecificationsFuel (Gasoline).......................................... 240Oil............................................................. 240
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