2018 DODGE DURANGO coolant level

•The temperature gauge shows engine coolant tem-
perature. Any reading within the normal range indi-
cates that the engine cooling system is operating
satisfactorily.
• The gauge pointer will likely indicate a higher tem-
perature when driving in hot weather, up mountain
grades, or when towing a trailer. 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, see “Servicing And Mainte-
nace”. Follow the warnings under the Cooling System
Pressure Cap paragraph.
CAUTION!
Driving with a hot engine cooling system could dam-
age your vehicle. If the temperature gauge reads “H”
(Continued)
CAUTION! (Continued)
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.
4. Fuel Gauge •The pointer shows the level of fuel in the fuel tank
when the Keyless Push Button Ignition is in the
ON/RUN position.
•
The fuel pump symbol points to the side of the
vehicle where the fuel door is located.
5. Instrument Cluster Display
•The instrument cluster display features a driver-
interactive display. Refer to “Instrument Cluster Dis-
play” in “Getting To Know Your Instrument Panel” for
further information.
NOTE: The hard telltales will illuminate for a bulb check
when the ignition is first cycled.
4
GETTING TO KNOW YOUR INSTRUMENT PANEL 143

SCHEDULED SERVICING
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that service
is required for your vehicle. Operating conditions such as
frequent short-trips, trailer tow, extremely hot or cold
ambient temperatures, and E85 fuel usage will influence
when the “Oil Change Required” message is displayed.
Severe Operating Conditions can cause the change oil
message to illuminate as early as 3,500 miles (5,600 km)
since last reset. Have your vehicle serviced as soon as
possible, within the next 500 miles (800 km).
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change.
NOTE:Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km), twelve months or 350
hours of engine run time, whichever comes first. The 350
hours of engine run or idle time is generally only a concern
for fleet customers. Severe Duty All Models
Change Engine Oil at 4,000 miles (6,500 km) or 350 hours of
engine run time if the vehicle is operated in a dusty and off
road environment or is operated predominately at idle or
only very low engine RPM’s. This type of vehicle use is
considered Severe Duty.
Once A Month Or Before A Long Trip:
•
Check engine oil level
• Check windshield washer fluid level
• Check the tire inflation pressures and look for unusual
wear or damage
• Check the fluid levels of the coolant reservoir, brake
master cylinder and fill as needed.
• Check function of all interior and exterior lights
8
SERVICING AND MAINTENANCE 409

•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 an authorized
dealer.
Adding Coolant
Your vehicle has been built with an improved engine
coolant (OAT coolant conforming to MS.90032) that allows
extended maintenance intervals. This engine coolant (anti-
freeze) can be used up to ten years or 150,000 miles
(240,000 km) before replacement. To prevent reducing this
extended 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 10
Year/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 (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
434 SERVICING AND MAINTENANCE

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
expansion bottle/recovery tank if so equipped.
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
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 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
(antifreeze) in the bottle should be between the ranges
indicated on the bottle.
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.
8
SERVICING AND MAINTENANCE 435

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.
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.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically. Refer
to the “Maintenance Plan” in this section for the proper
maintenance intervals.
436 SERVICING AND MAINTENANCE

U.S.Metric
Cooling System *
3.6L Engine (Mopar Antifreeze/
Engine Coolant 10 Year/150,000 Mile
Formula or equivalent) – Without
Trailer Tow Package 10.4 Quarts
9.9 Liters
3.6L Engine (Mopar Antifreeze/
Engine Coolant 10 Year/150,000 Mile
Formula or equivalent) – With Trailer
Tow Package 11 Quarts
10.4 Liters
5.7 Liter Engine (Mopar Antifreeze/
Engine Coolant 10 Year/150,000 Mile
Formula or equivalent) – Without
Trailer Tow Package 15.4 Quarts
14.6 Liters
5.7 Liter Engine (Mopar Antifreeze/
Engine Coolant 10 Year/150,000 Mile
Formula or equivalent) – With Trailer
Tow Package 16 Quarts
15.2 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
478 TECHNICAL SPECIFICATIONS

Anti-Lock Warning Light.....................163
Apple CarPlay ............................564
Arming System Security Alarm ...........................29
Assist, Hill Start .......................... .174
Audio Systems (Radio) .......................485
Auto Down Power Windows ..................103
Automatic Headlights ........................74
Automatic High Beams .......................74
Automatic Temperature Control (ATC) ............98
Automatic Transmission ..................262, 273
Adding Fluid .......................... .439
Fluid And Filter Change ...................439
Fluid Change .......................... .439
Fluid Level Check .....................438, 439
Fluid Type ..........................438, 481
Special Additives ........................ .438
Automatic Transmission Limp Home Mode ........278
Auxiliary Electrical Outlet (Power Outlet) .........128
Auxiliary Power Outlet ..................... .128
Axle Fluid ...............................481
Battery ...............................157, 416
Charging System Light ....................157
Keyless Key Fob Replacement ................19Belts, Seat
............................... .253
Blind Spot Monitoring .......................181
Body Mechanism Lubrication ..................425
B-Pillar Location .......................... .446
Brake Assist System ........................ .174
Brake Control System, Electronic ................173
Brake Fluid .......................... .437, 481
Brake System ..........................436, 471
Anti-Lock (ABS) ........................ .471
Fluid Check ............................437
Master Cylinder ........................ .437
Parking ...............................268
Warning Light .......................... .156
Brake/T ransmission

Interlock..................272
Bulb Replacement .......................372, 373
Bulbs, Light ............................. .256
Camera, Rear ............................ .337
Capacities, Fluid .......................... .477
Caps, Filler Oil (Engine) ........................ .414, 419
Radiator (Coolant Pressure) .................435
Carbon Monoxide Warning ................253, 476
Cargo Area Cover .......................111,112
Cargo Compartment .........................111
12
INDEX 575

Light.................................111
Luggage Carrier ........................ .133
Cargo Light ...............................111
Cargo Tie-Downs ...........................112
Car Washes ...............................465
Cellular Phone ............................547
Center High Mounted Stop Light ...............376
Chains, Tire ............................. .461
Changing A Flat Tire ........................441
Chart, Tire Sizing .......................... .442
Check Engine Light (Malfunction Indicator Light). . . .168
Checking Your Vehicle For Safety ...............252
Checks, Safety ............................ .252
Child Restraint ............................226
Child Restraints Booster Seats ............................230
Child Seat Installation .....................246
How To Stow An unused ALR Seat Belt ........242
Infant And Child Restraints .................228
Locating The LATCH Anchorages .............236
Lower Anchors And Tethers For Children .......232
Older Children And Child Restraints ...........229
Seating Positions ........................ .231
Child Safety Locks ..........................39
Clean Air Gasoline ........................ .474Cleaning
Wheels ............................... .460
Climate Control ............................85
Automatic ..............................86
Cold Weather Operation ..................... .267
Compact Disc (CD) Maintenance ................566
Compact Spare Tire ........................ .458
Contract, Service .......................... .570
Cooling Pressure Cap (Radiator Cap) ............435
Cooling System ............................432
Adding Coolant (Antifreeze) .................434
Coolant Level .......................... .435
Cooling Capacity ........................ .477
Disposal Of

Used Coolant ..................435
Drain, Flush, And Refill ....................433
Inspection ..........................432, 435
Points To Remember ..................... .436
Pressure Cap ............................435
Radiator Cap .......................... .435
Selection Of Coolant (Antifreeze) .......433, 477, 479
Corrosion Protection ........................464
Cruise Control (Speed Control) ..............289, 293
Cruise Light .......................... .165, 166
Cupholders .......................... .125, 126
Customer Assistance ........................568
576 INDEX