2018 Ram ProMaster check engine

•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.
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
244 SERVICING AND MAINTENANCE

community. To prevent ingestion by animals or children,
do not store ethylene glycol-based coolant in open contain-
ers 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 engine off and cold, the level of the engine coolant
(antifreeze) in the bottle should be between the “MIN” and
“MAX” marks.
Points To Remember
NOTE:When the vehicle is stopped after a few miles/
kilometers 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 (anti-
freeze) 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 (antifreeze)
needs to be added, the contents of the coolant expansion
bottle must also be protected against freezing.
• If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure tested
for leaks.
• Maintain engine coolant (antifreeze) concentration at a
minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corrosion pro-
tection of your engine which contains aluminum com-
ponents.
• 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 necessary, install ONLY
the correct type thermostat. Other designs may result in
unsatisfactory engine coolant (antifreeze) performance,
poor gas mileage, and increased emissions.
8
SERVICING AND MAINTENANCE 245

Adding Engine Coolant (Antifreeze).............243
Adding Washer Fluid ....................... .233
Additives, Fuel ........................... .282
AirBag..................................112 Air Bag Operation ........................114
Air Bag Warning Light .....................111
Enhanced Accident Response ................222
Event Data Recorder (EDR) .................223
If A Deployment Occurs ....................119
Maintaining Your Air Bag System .............122
Side Air Bags ...........................115
Transporting Pets ....................... .130
Air Bag Light ....................... .74, 111, 131
Air Bag Maintenance ....................... .122
Air Cleaner, Engine (Engine Air Cleaner Filter) ......236
Air Conditioner Maintenance ..................237
Air Conditioning Filter ....................52, 238
Air Conditioning, Operating Tips .............51, 53
Air Conditioning Refrigerant ...............237, 238
Air Conditioning System .....................237
Air Filter ............................... .236
Air Pressure, Tires ......................... .259
Alarm (Security Alarm) .......................21
Alarm System (Security Alarm) .................21
Alterations/Modifications, Vehicle ................6Antifreeze (Engine Coolant)
................242, 286
Disposal .............................. .244
Anti-Lock Brake System (ABS) ..................88
Anti-Lock Warning Light ......................80
Assist, Hill Start ............................94
Audio Systems (Radio) ...................... .290
Auto Down Power Windows ...................54
Automatic Door Locks ........................23
Automatic Transaxle .........................18
Automatic Transmission ..................140, 248
Adding Fluid .......................... .248
Fluid And Filter Changes ...................248
Fluid Change .......................... .248
Fluid Level Check .................... .247, 248
Fluid

Type ......................... .247, 288
Special Additives ........................ .247
Battery .............................. .75, 233
Charging System Light .....................75
Keyless Key Fob Replacement ................17
Belts, Seat ............................... .131
Body Builders Guide ..........................6
Body Mechanism Lubrication ..................239
B-Pillar Location .......................... .254
Brake Assist System .........................90
322 INDEX

Brake Control System, Electronic................89
Brake Fluid .......................... .246, 288
Brake, Parking ............................ .139
Brake System ......................... .246, 280
Anti-Lock (ABS) ..........................88
Fluid Check ........................... .246
Master Cylinder ........................ .246
Parking .............................. .139
Warning Light ...........................76
Brake/Transmission Interlock ..................142
Bulb Replacement ......................... .179
Bulbs, Light .......................... .133, 179
Camera, Rear ............................ .157
Capacities, Fluid .......................... .286
Caps, Filler Fuel ................................. .159
Oil (Engine) ........................... .232
Power Steering ......................... .150
Radiator (Coolant Pressure) .................244
Carbon Monoxide Warning ................131, 285
Cargo Area Features .........................57
Cargo Compartment .........................57
Cargo Light ...............................42
Car Washes .............................. .273Cellular Phone
........................... .306
Certification Label ......................... .161
Changing A Flat Tire .....................195, 248
Chart, Tire Sizing .......................... .250
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 Restraints ........................ .123
Child Seat Installation .....................129
Infants And Child Restraints ................125
Older Children And Child Restraints ...........126
Clean

Air Gasoline ........................ .282
Cleaning Wheels ............................... .267
Climate Control ............................45
Cold Weather Operation ..................... .137
Compact Disc (CD) Maintenance ................314
Compact Spare Tire ........................ .265
Contract, Service .......................... .318
Coolant Pressure Cap (Radiator Cap) .............244
Cooling System ........................... .241
Adding Coolant (Antifreeze) .................243
12
INDEX 323

Compartment.......................... .232
Compartment Identification .................232
Coolant (Antifreeze) ...................242, 286
Cooling .............................. .241
Exhaust Gas Caution ...................131, 285
Fails To Start ........................... .137
Flooded, Starting ........................ .137
Fuel Requirements ....................282, 286
Jump Starting .......................... .214
Oil .............................. .235, 286
Oil Filler Cap .......................... .232
Oil Filter .............................. .236
Oil Selection ........................ .235, 286
Oil Synthetic ........................... .236
Overheating ........................... .218
Starting .............................. .137
Engine Oil Viscosity ........................ .235
Engine Oil Viscosity Chart ....................235
Enhanced Accident Response Feature ............222
Entry System, Illuminated .....................44
Ethanol ................................. .283
Exhaust Gas Caution .....................131, 285
Exhaust System ....................... .131, 240
Exterior Lighting ............................39 Exterior Lights
......................... .38, 133
Filters Air Cleaner ............................ .236
Air Conditioning ..................... .52, 238
Engine Oil ......................... .236, 286
Engine Oil Disposal ...................... .236
Flashers Hazard Warning ........................ .179
Turn Signal ......................... .82, 133
Flooded Engine Starting ..................... .137
Fluid Capacities ........................... .286
Fluid Leaks .............................. .134
Fluid Level Checks Automatic
Transmission ....................248
Brake ................................ .246
Cooling System ......................... .242
Power Steering ......................... .150
Fluids And Lubricants ...................... .286
Fog Lights ................................40
Folding Rear Seat ...........................23
Four-Way Hazard Flasher .....................179
Freeing A Stuck Vehicle ..................... .219
Fuel ................................... .282
Additives ............................. .282
12
INDEX 325

Immobilizer (Sentry Key)......................20
Inside Rearview Mirror .......................34
Instrument Cluster ....................... .66, 82
Instrument Panel Lens Cleaning ................275
Interior And Instrument Lights ..................41
Interior Appearance Care .....................274
Interior Lights ..............................41
Intermittent Wipers (Delay Wipers) ...............44
Introduction ................................4
Jacking And Tire Changing Instructions ...........200
Jack Operation ........................ .195, 248
Jump Starting ............................ .214
Key Fob Programming Additional Key Fobs .............18
Key Fob Battery Service (Remote Keyless Entry) .....17
Key Fob Programming (Remote Keyless Entry) ......18
Key-In Reminder ............................20
Key, Replacement ...........................20
Keys ....................................16
Key, Sentry (Immobilizer) ......................20
Lane Change Assist ..........................41
Lap/Shoulder Belts ........................ .102Latches
................................. .134
Hood ..................................56
Lead Free Gasoline ........................ .282
Leaks, Fluid ............................. .134
Life Of Tires ............................. .262
Light Bulbs .......................... .133, 179
Lights .................................. .133
AirBag ..........................74, 111, 131
Brake Assist Warning ......................92
Brake Warning ...........................76
Bulb Replacement ....................... .179
Cruise .................................82
Daytime Running .........................39
Dimmer Switch, Headlight ................38, 39
Electronic Stability Program (ESP) Indicator .......92
Engine Temperature Warning .................76
Exterior .............................. .133
Hazard Warning Flasher ...................179
Headlights ..............................39
High Beam ..............................39
Illuminated Entry .........................44
Interior ................................

41
Malfunction Indicator (Check Engine) ...........80
Park ............................... .40, 82
Passing ................................40
12
INDEX 327

Service............................... .179
Tire Pressure Monitoring (TPMS) ............77, 95
Traction Control ..........................92
Turn Signal ....................... .38, 82, 133
Warning (Instrument Cluster Description) .....76, 82
Loading Vehicle ....................... .161, 163
Capacities ............................. .163
Tires................................. .254
Locks Automatic Door ..........................23
Door ..................................22
Low Tire Pressure System .....................95
Lubrication, Body ......................... .239
Lug Nuts ............................... .280
Maintenance Free Battery .....................233
Maintenance Schedule ...................... .227
Malfunction Indicator Light (Check Engine) ......80, 84
Manual, Service ........................... .320
Memory Feature (Memory Seat) .................23
Memory Seat ..............................23
Memory Seats And Radio .....................23
Methanol ............................... .283
Mirrors ..................................34
Electric Remote ...........................35 Exterior Folding
..........................35
Heated .................................38
Outside ................................35
Rearview ...............................34
Modifications/Alterations, Vehicle ................6
Monitor, Tire Pressure System ..................95
Mopar Parts ............................. .319
Multi-Function Control Lever ...................38
New Vehicle Break-In Period ..................138
Occupant Restraints .........................99
Octane Rating, Gasoline (Fuel) .................282
Oil, Engine ........................... .235, 286
Capacity .............................. .286
Change Interval ........................ .235
Dipstick .............................. .233
Disposal .............................. .236
Filter ............................. .236,
286
Filter Disposal .......................... .236
Identification Logo ...................... .235
Materials Added To ...................... .236
Pressure Warning Light .....................77
Recommendation .....................235, 286
Synthetic ............................. .236
328 INDEX