2020 DODGE DURANGO radiator

322SERVICING AND MAINTENANCE
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
Specifications” for further information.
NOTE:
Mixing of engine coolant (antifreeze) other
than specified Organic Additive Technology
(OAT) engine coolant (antifreeze), may result
in engine damage and may decrease corro -
sion protection. Organic Additive Technology
(OAT) engine coolant is different and should
not be mixed with Hybrid Organic Additive
Technology (HOAT) engine coolant (anti -
freeze) or any “globally compatible” coolant
(antifreeze). If a non-OAT engine coolant (antifreeze) is
introduced into the cooling system in an
emergency, the cooling system will need to
be drained, flushed, and refilled with fresh
OAT coolant (conforming to MS.90032), by
an authorized dealer as soon as possible.
Do not use water alone or alcohol-based
engine coolant (antifreeze) products. Do not
use additional rust inhibitors or antirust prod
-
ucts, as they may not be compatible with the
radiator engine coolant and may plug the
radiator.
This vehicle has not been designed for use
with propylene glycol-based engine coolant
(antifreeze). Use of propylene glycol-based
engine coolant (antifreeze) is not recom -
mended.
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.
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 (antifreeze) can
be used up to 10 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.

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SERVICING AND MAINTENANCE323
(Continued)
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 temperatures occurring in
the area where the vehicle is operated.
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 autho -
rized dealer.
Mixing engine coolant (antifreeze) types is
not recommended 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 expansion bottle/
recovery tank (if equipped).
The cap should be inspected and cleaned if
there is any accumulation of foreign material on
the sealing surfaces.
Disposal Of Used Coolant
Used ethylene glycol-based coolant (antifreeze)
is a regulated 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 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.
WARNING!
Do not open 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.
WARNING! (Continued)
7

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324SERVICING AND MAINTENANCE
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.
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 coolant (antifreeze) in the bottle
should be between the “MAX” and “MIN” lines
marked on the bottle.
As long as the engine operating temperature is
satisfactory, the coolant bottle need only be
checked once a month.
When additional coolant (antifreeze) is needed
to maintain the proper level, it should be added
to the coolant bottle. Do not overfill. See an authorized dealer for service.
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 compart
-
ment. This is normally a result of moisture from
rain, snow, or high humidity accumulating on
the radiator and being vaporized when the ther -
mostat 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) addi-
tions are required, the cooling system should
be pressure tested for leaks.
Maintain engine coolant (antifreeze) concen -
tration at a minimum of 50% OAT coolant
(conforming to MS.90032) and distilled
water for proper corrosion protection of your
engine which contains aluminum compo -
nents.
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 ther -
mostat. Other designs may result in unsatis -
factory engine coolant (antifreeze)
performance, poor gas mileage, and
increased emissions.

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449
B
Battery
................................................. 111, 307Charging System Light............................... 111Keyless Key Fob Replacement.................... 15Battery Saver Feature...................................... 53Belts, Seat..................................................... 181Blind Spot Monitoring.................................... 131Bluetooth Connect Or Disconnect Link Betweenthe Uconnect Phone And Mobile
Phone
................................................... 422Connecting To A Particular Mobile Phone Or Audio Device After Pairing..... 417Bluetooth Mode............................................. 406Body Mechanism Lubrication........................ 316B-Pillar Location............................................. 332Brake Assist System...................................... 123Brake Control System, Electronic.................. 123Brake Fluid................................. 325, 358, 360Brake System...................................... 325, 350Anti-Lock (ABS).......................................... 350Fluid Check..................................... 325, 360Master Cylinder......................................... 325Parking...................................................... 190Warning Light............................................ 110Brake/Transmission Interlock....................... 192Bulb Replacement............................... 266, 268Bulbs, Light.................................................... 183
C
Camera, Rear................................................ 237Capacities, Fluid.................................. 355, 356Caps, FillerOil (Engine)............................. 304, 309, 310Radiator (Coolant Pressure)..................... 323Car Washes................................................... 347Carbon Monoxide Warning................... 180, 354Cargo Area Cover............................................. 77Cargo Compartment........................................ 77Light............................................................ 77Luggage Carrier........................................... 90Cargo Light....................................................... 77Cargo Tie-Downs.............................................. 78Cellular Phone.............................................. 436Center High Mounted Stop Light................... 269Chains, Tire.......................................... 343, 344Changing A Flat Tire...................................... 327Chart, Tire Sizing........................................... 329Check Engine Light
(Malfunction Indicator Light)......................... 121Checking Your Vehicle For Safety................. 180Checks, Safety.............................................. 180Child Restraint.............................................. 163Child RestraintsBooster Seats........................................... 166Child Seat Installation.............................. 177
How To Stow An unused ALR Seat Belt..... 174Infant And Child Restraints....................... 164Locating The LATCH Anchorages.............. 171Lower Anchors And Tethers For Children................................................ 167Older Children And Child Restraints.......... 165Seating Positions...................................... 166Child Safety Locks............................................29Clean Air Gasoline......................................... 352CleaningWheels...................................................... 342Climate Control................................................58Automatic....................................................58Cold Weather Operation................................ 188Compact Spare Tire...................................... 341Contract, Service........................................... 445Cooling Pressure Cap (Radiator Cap)............ 323Cooling System............................................. 321Adding Coolant (Antifreeze)...................... 322Coolant Level................................... 323, 324Cooling Capacity.............................. 355, 356Disposal Of Used Coolant......................... 323Drain, Flush, And Refill............................. 321Inspection............................... 321, 323, 324Points To Remember................................ 324Pressure Cap............................................ 323
11

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450
Radiator Cap
............................................. 323Selection Of Coolant (Antifreeze)......322, 355, 356, 357, 359Corrosion Protection...................................... 346Cruise Control (Speed Control)............ 205, 208Cruise Light......................................... 117, 119Cupholders...................................................... 86Customer Assistance..................................... 444Cybersecurity................................................. 361
D
Daytime Running Lights................................... 51Dealer Service............................................... 308Defroster, Windshield.................................... 181Diagnostic System, Onboard......................... 120Disabled Vehicle Towing................................ 290DisposalAntifreeze (Engine Coolant)....................... 323Disturb........................................................... 420Do Not Disturb............................................... 441Door Ajar.............................................. 111, 112Door Ajar Light..................................... 111, 112Door Locks............................................... 24, 29Child-Protection Door Lock — Rear Doors.... 29Door Opener, Garage....................................... 78Doors............................................................... 24Driver’s Seat Back Tilt..................................... 32Driving........................................................... 257DVD Player (Video Entertainment
System)......................................................... 425
E
Economy (Fuel) Mode................................... 192Electric Brake Control System....................... 123Anti-Lock Brake System............................ 122Electronic Roll Mitigation................. 124, 130Electric Remote Mirrors................................... 49Electrical Outlet, Auxiliary (Power Outlet)......... 87Electronic Speed Control (Cruise Control)..... 206Electronic Stability Control (ESC).................. 125Electronic Throttle Control Warning Light...... 111Electronically Shifted Transfer Case............. 199Emergency Gas Can Refueling...................... 286Emergency, In Case OfFreeing Vehicle When Stuck..................... 289Hazard Warning Flasher........................... 261Jacking............................................ 275, 327Jump Starting........................................... 283Emission Control System Maintenance........ 121Engine.................................................. 304, 306Air Cleaner................................................ 311Block Heater............................................. 188Break-In Recommendations............ 188, 189Compartment......................... 304, 305, 306Compartment Identification............. 304, 305Coolant (Antifreeze).................................. 359Cooling..................................................... 321Exhaust Gas Caution....................... 180, 354Fails To Start............................................ 187Flooded, Starting...................................... 187
Fuel Requirements.......................... 351, 355Jump Starting........................................... 283Oil........................ 308, 309, 355, 356, 359Oil Filler Cap........................... 304, 309, 310Oil Filter.................................................... 311Oil Selection.................. 309, 355, 356, 357Oil Synthetic.............................................. 311Overheating.............................................. 287Starting............................................ 184, 185Engine Oil Viscosity.............................. 309, 310Engine Oil Viscosity Chart.............................. 310Enhanced Accident Response Feature161, 293Ethanol.......................................................... 353Exhaust Gas Cautions.......................... 180, 354Exhaust System................................... 180, 320Exterior Lights............................... 50, 183, 266
F
FiltersAir Cleaner
................................................ 311Air Conditioning........................ 70, 311, 314Engine Oil........................................ 311, 359Engine Oil Disposal................................... 311Flashers........................................................ 261Hazard Warning........................................ 261Turn Signals............................ 118, 183, 269Flash-To-Pass...................................................52Flooded Engine Starting................................ 187

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454
Power Seats Down
.................................................... 38, 39Forward................................................ 38, 39Rearward.............................................. 38, 39Up......................................................... 38, 39Pregnant Women And Seat Belts...................149Preparation For Jacking................................. 279PretensionersSeat Belts.................................................. 149
R
Radial Ply Tires.............................................. 337Radiator Cap (Coolant Pressure Cap)............ 323RadioPresets...................................................... 397Radio Operation.................................. 396, 436Radio Remote Controls.................................. 423Rain Sensitive Wiper System........................... 57Rear Air Conditioning....................................... 66Rear Axle (Differential)................................... 327Rear Camera................................................. 237Rear Cross Path............................................. 134Rear Cupholders.............................................. 86Rear ParkSense System...................... 221, 227Rear Seats, Folding......................................... 34Rear Wiper/Washer......................................... 58Reclining Front Seats...................................... 33
Recreational Towing..................................... 253Shifting Into Transfer Case Neutral (N)........................................................ 255Shifting Out Of Transfer Case Neutral(N)........................................................ 256Reformulated Gasoline................................. 352Refrigerant.................................................... 313Release, Hood................................................. 75Reminder, Seat Belt...................................... 144Remote ControlStarting System........................................... 19Remote Keyless Entry...................................... 14Arm The Alarm............................................. 23Disarm The Alarm........................................ 24Programming Additional Key Fobs........ 16, 22Remote Sound System (Radio) Control......... 423Remote StartingExit Remote Start Mode.............................. 20Uconnect Customer Programmable Features............................................... 372Uconnect Settings.................................... 372Remote Starting System.................................. 19Replacement Bulbs...................................... 266Replacement Keys.................................... 16, 22Replacement Tires........................................ 338Reporting Safety Defects.............................. 446Restraints, Child........................................... 163Restraints, Head.............................................. 42
Retractable Cargo Area Cover..........................77Roll Over Warning............................................10Roof Type Carrier.............................................90Rotation, Tires............................................... 344
S
Safety Checks Inside Vehicle........................ 181Safety Checks Outside Vehicle...................... 183Safety Defects, Reporting............................. 446Safety Information, Tire................................. 327Safety Tips.................................................... 180Safety, Exhaust Gas...................................... 180Schedule, Maintenance....................... 294, 298Seat Belt Reminder....................................... 110Seat Belts............................................ 144, 181Adjustable Shoulder Belt.......................... 148Adjustable Upper Shoulder Anchorage..... 148Adjustable Upper Shoulder Belt Anchorage............................................ 148Automatic Locking Retractor (ALR)........... 150Child Restraints........................................ 163Energy Management Feature................... 150Extender................................................... 149Front Seat............................... 144, 145, 147Inspection................................................. 181Lap/Shoulder Belt Operation.................... 147Lap/Shoulder Belt Untwisting................... 148Lap/Shoulder Belts................................... 145

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