2019 DODGE DURANGO SRT radiator

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.
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 your local autho-
rized 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. NOTE:
•
Mixing of engine coolant (antifreeze) other than speci-
fied Organic Additive Technology (OAT) engine coolant
(antifreeze), may result in engine damage and may
decrease corrosion protection. Organic Additive Tech-
nology (OAT) engine coolant is different and should not
be mixed with Hybrid Organic Additive Technology
(HOAT) engine coolant (antifreeze) 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 inhibi-
tors or antirust products, 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 propyl-
ene glycol-based engine coolant (antifreeze). Use of
propylene glycolbased engine coolant (antifreeze) is not
recommended.
416 SERVICING AND MAINTENANCE

•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
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.
(Continued)
WARNING! (Continued)
•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 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.
418 SERVICING AND MAINTENANCE

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 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 419

Factory Default” button on the touchscreen to change back
to factory settings, or press the “Shift Light Off” button on
the touchscreen to turn the system off completely.
Race Cooldown — If Equipped
Race Cooldown, if equipped, is a selectable After-Run
Cooling Feature.
Race Cooldown, if equipped, is a feature activated by
selecting the Race Cooldown button under Race Options
within the Drive Modes pages.
To enable this feature, the vehicle will check to ensure the
engine is off, the hood is closed, the status of the battery
and system are good, and determine if cooling is required.
After making a pass down the drag strip, this feature helps
cool the car after the engine has been shut down. The
radiator fan and low temperature radiator coolant pump
remain on after engine shutdown for a period up to 10
minutes or until target temperature is reached.
A graph in the radio can show the resulting intercooler
coolant temperature in real time while the vehicle ignition
is in run position with the engine off.NOTE: Race Cooldown feature (After-Run) will only come
on with engine off. The temperature will display with
engine running also, but After-Run Cooling will not be
functioning.
Race Cooldown
508 MULTIMEDIA

Caps, FillerOil (Engine) ..................... .398, 401, 402
Radiator (Coolant Pressure) .................418
Carbon Monoxide Warning ................251, 460
Cargo Area Cover ......................... .107
Cargo Compartment ....................... .107
Light ................................ .107
Luggage Carrier ........................ .128
Cargo Light ............................. .107
Cargo Tie-Downs .......................... .108
Car Washes .............................. .448
Cellular Phone ........................... .530
Center High Mounted Stop Light ...............364
Chains, Tire ............................. .444
Changing A Flat Tire ....................... .423
Chart, Tire Sizing .......................... .425
Check Engine Light (Malfunction Indicator Light). . . .166
Checking Your Vehicle For Safety ...............250
Checks, Safety ............................ .250
Child Restraint ........................... .225
Child Restraints Booster Seats ........................... .228
Child Seat Installation .....................244
How To Stow An unused ALR Seat Belt ........241
Infant And Child Restraints .................227 Locating The LATCH Anchorages
.............234
Lower Anchors And Tethers For Children .......231
Older Children And Child Restraints ...........228
Seating Positions ........................ .230
Child Safety Locks ..........................40
Clean Air Gasoline ........................ .457
Cleaning Wheels ............................... .443
Climate Control ............................82
Automatic ..............................83
Cold Weather Operation ..................... .263
Compact Disc (CD) Maintenance ................545
Compact Spare Tire ........................ .441
Contract,
Service.......................... .550
Cooling Pressure Cap (Radiator Cap) ............418
Cooling System ........................... .415
Adding Coolant (Antifreeze) .................417
Coolant Level .......................... .418
Cooling Capacity ........................ .460
Disposal Of Used Coolant ..................418
Drain, Flush, And Refill ....................416
Inspection ......................... .415, 418
Points To Remember ..................... .419
Pressure Cap ........................... .418
Radiator Cap .......................... .418
556 INDEX

ParkSense System, Rear...................306, 315
Passive Entry ..............................35
Performance ............................. .147
Pets ................................... .250
Pinch Protection .......................... .102
Placard, Tire And Loading Information ...........429
Power Brakes ............................... .455
Distribution Center (Fuses) ..................365
Door Locks ..............................35
Inverter .............................. .127
Liftgate ............................... .105
Mirrors ................................68
Outlet (Auxiliary Electrical Outlet) ............122
Seats ..................................49
Steering .............................. .281
Sunroof .............................. .101
Tilt/Telescoping Steering Column ..............64
Windows ...............................98
Power Seats Down .............................. .50, 52
Forward ............................ .50, 52
Rearward ........................... .50, 52
Up ................................ .50, 52
Pregnant Women And Seat Belts ................206Preparation For Jacking
..................... .375
Pretensioners Seat Belts ............................. .206
Radial Ply Tires ........................... .435
Radiator Cap (Coolant Pressure Cap) .............418
Radio Frequency General Information ................24, 30, 31, 40
Radio Operation .......................... .530
Radio Remote Controls ..................... .512
Rain Sensitive Wiper System ...................81
Rear Air Conditioning ........................91
Rear Axle (Differential) ..................... .422
Rear Camera ............................. .329
Rear Cross Path ........................... .185
Rear Cupholders .......................... .121
Rear

ParkSense System ...................306, 315
Rear Seats, Folding ..........................42
Rear Wiper/Washer ..........................82
Recreational Towing ........................ .349
Reformulated Gasoline ...................... .457
Refrigerant .............................. .404
Release, Hood ............................ .104
Reminder, Seat Belt ........................ .199
12
INDEX 563