2020 DODGE DURANGO cooling

6
RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.) ......................................... 253 Towing This Vehicle Behind Another
Vehicle .......................................................253 Recreational Towing — Rear-Wheel
Drive Models ..............................................254 Recreational Towing — All Wheel Drive
Models (Single-Speed Transfer Case) ......254 Recreational Towing — All-Wheel Drive
Models (Two-Speed Transfer Case) ..........254
DRIVING TIPS ..................................................... 257
On-Road Driving Tips .................................257
Off-Road Driving Tips .................................258
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS ....................... 261
ASSIST AND SOS MIRROR — IF EQUIPPED.... 261General Information ..................................265
BULB REPLACEMENT ....................................... 266
Replacement Bulbs .................................266
Bulb Replacement ....................................268
FUSES .................................................................. 269
General Information ..................................270Underhood Fuses.......................................270 JACKING AND TIRE CHANGING .......................275
Run Flat Tires ............................................. 276
Jack Location ............................................. 276
Spare Tire Stowage ................................... 277
Spare Tire Removal ................................... 277
Preparations For Jacking .......................... 279Jacking Instructions .................................. 279Road Tire Installation ................................ 283
JUMP STARTING ................................................ 283
Preparations For Jump Start ..................... 284Jump Starting Procedure .......................... 285
REFUELING IN EMERGENCY –
IF EQUIPPED ...................................................... 286
IF YOUR ENGINE OVERHEATS .........................287
MANUAL PARK RELEASE .................................. 287
FREEING A STUCK VEHICLE .............................289
TOWING A DISABLED VEHICLE .......................290 Rear Wheel Drive Models.......................... 292All Wheel Drive Models.............................. 292
TOWING A DISABLED SRT VEHICLE ................293
ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS) .................................................................293
EVENT DATA RECORDER (EDR) .......................293
SERVICING AND MAINTENANCE
SCHEDULED SERVICING — NON-SRT .............. 294
Maintenance Plan — Non-SRT .................. 294Heavy Duty Use Of The Vehicle................. 298
SCHEDULED SERVICING – SRT ....................... 298
Maintenance Plan — SRT .......................... 300
ENGINE COMPARTMENT .................................. 304
3.6L Engine ................................................ 304
5.7L Engine ................................................ 305
6.4L Engine ................................................ 306
Checking Oil Level ..................................... 307
Adding Washer Fluid ................................ 307
Maintenance-Free Battery ....................... 307Pressure Washing...................................... 308
DEALER SERVICE .............................................. 308
Engine Oil .................................................. 308
Engine Oil Filter ......................................... 311Engine Air Cleaner Filter............................ 311Air Conditioner Maintenance .................... 313Accessory Drive Belt Inspection ............... 315Body Lubrication ....................................... 316
Windshield Wiper Blades ......................... 316
Exhaust System ........................................ 320
Cooling System .......................................... 321
Brake System ............................................ 325Automatic Transmission............................ 326Front/Rear Axle Fluid ............................... 327Transfer Case ............................................ 327

20_WD_OM_EN_USC_t.book Page 6

68GETTING TO KNOW YOUR VEHICLE
Rear Lock
Pressing the Rear Temperature Lock button on
the Uconnect touchscreen, illuminates a lock
symbol in the rear display. The rear temperature
and air source are controlled from the front
Uconnect system.
Rear second row occupants can only adjust the
rear ATC control when the Rear Temperature
Lock button is turned off.
The rear ATC is located in the headliner, near
the center of the vehicle.
Press the Rear Temperature Lock button on
the Uconnect touchscreen. This turns off the
Rear Temperature Lock icon in the rear
temperature knob.
Rotate the Rear Blower, Rear Temperature
and the Rear Mode Control knobs to suit your
comfort needs.
ATC is selected by adjusting the rear blower
knob counterclockwise to AUTO.
Once the desired temperature is displayed, the
ATC System will automatically achieve and
maintain that comfort level. When the system is
set up for your comfort level, it is not necessary
to change the settings. You will experience the greatest efficiency by
simply allowing the system to function
automatically.
CLIMATE CONTROL FUNCTIONS
A/C (Air Conditioning)
The A/C (Air Conditioning) button allows the
operator to manually activate or deactivate the
air conditioning system. When the air
conditioning system is turned on, cool
dehumidified air will flow through the outlets
into the cabin. For improved fuel economy,
press the A/C button to turn off the air
conditioning and manually adjust the blower
and airflow mode settings. Also, make sure to
select only Panel, Bi-Level, or Floor modes.
NOTE:
For Manual Climate Controls, if the system is
in Mix, Floor or Defrost Mode, the A/C can be
turned off, but the A/C system shall remain
active to prevent fogging of the windows.
If fog or mist appears on the windshield or
side glass, select Defrost mode, and increase
blower speed if needed.
If your A/C performance seems lower than
expected, check the front of the A/C
condenser (located in front of the radiator),
for an accumulation of dirt or insects. Clean
with a gentle water spray from the front of the
radiator and through the condenser.
MAX A/C
MAX A/C sets the control for maximum cooling
performance.
Press and release to toggle between MAX A/C
and the prior settings. The button illuminates
when MAX A/C is on.
In MAX A/C, the blower level and mode position
can be adjusted to desired user settings.
Pressing other settings will cause the MAX A/C
operation to switch to the selected setting and
MAX A/C to exit.
Recirculation
In cold weather, use of Recirculation mode may
lead to excessive window fogging. The
Recirculation feature may be unavailable
(button on the touchscreen greyed out) if
conditions exist that could create fogging on the
inside of the windshield.

20_WD_OM_EN_USC_t.book Page 68

GETTING TO KNOW YOUR VEHICLE69
AUTOMATIC TEMPERATURE CONTROL
(ATC)
Automatic Operation

1. Push the AUTO button on the front
Automatic Temperature Control (ATC)
Panel and the word “AUTO” will illuminate
in the front ATC display, along with two
temperatures for the driver and front
passenger. The system will then automat -
ically regulate the amount of airflow.

2. Adjust the temperature you would like the system to maintain, by adjusting the driver,
passenger, and rear temperatures. Once
the desired temperature is displayed, the
system will achieve and automatically
maintain that comfort level.
3. When the system is set up for your comfort level, it is not necessary to change the
settings. You will experience the greatest
efficiency by simply allowing the system to
function automatically. NOTE:
It is not necessary to move the temperature
settings. The system automatically adjusts the
temperature, mode and fan speed to provide
comfort as quickly as possible.
To provide you with maximum comfort in the
automatic mode, during cold start-ups, the
blower fan will remain on low until the engine
warms up. The fan will engage immediately if
the Defrost mode is selected, or by changing the
front blower knob setting.
Manual Operation Override
This system offers a full complement of manual
override features. The AUTO symbol in the front
ATC display will be turned off when the system
is being used in the manual mode.
NOTE:
The system will not automatically sense the
presence of fog, mist or ice on the windshield.
Defrost mode must be manually selected to
clear the windshield and side glass.
OPERATING TIPS
NOTE:
Refer to the chart at the end of this section for
suggested control settings for various weather
conditions.
Summer Operation
The engine cooling system must be protected
with a high-quality antifreeze coolant to provide
proper corrosion protection and to protect
against engine overheating. A solution of 50%
OAT (Organic Additive Technology) coolant that
meets the requirements of FCA Material
Standard MS.90032 and 50% water is
recommended. Refer to “Fluids and Lubricants”
in “Technical Specifications” for proper coolant
selection.
Winter Operation
Use of the Air Recirculation mode during Winter
months is not recommended because it may
cause window fogging.
2

20_WD_OM_EN_USC_t.book Page 69

96GETTING TO KNOW YOUR INSTRUMENT PANEL
INSTRUMENT CLUSTER DESCRIPTIONS

1. Tachometer

Indicates the engine speed in revolutions
per minute (RPM x 1000).
2. Speedometer
Indicates vehicle speed.
3. Temperature Gauge
The temperature gauge shows engine
coolant temperature. Any reading within
the normal range indicates that the
engine cooling system is operating satis -
factorily.
The pointer will likely indicate a higher
temperature 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. 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 “Instru -
ment Cluster Display” in this chapter for
further information.
NOTE:
The hard telltales will illuminate for a bulb check
when the ignition is first cycled.
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, refer to “Cooling System” in
“Servicing And Maintenance” and follow the
warnings under the Cooling System Pressure
Cap paragraph.
CAUTION!
Driving with a hot engine cooling system
could damage your vehicle. If the
temperature gauge reads “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 the “H”, turn the engine off
immediately and call an authorized dealer for
service.

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98GETTING TO KNOW YOUR INSTRUMENT PANEL
SRT INSTRUMENT CLUSTER
D
ESCRIPTIONS

1. Speedometer

Indicates vehicle speed.
2. Tachometer
Indicates the engine speed in revolutions
per minute (RPM x 1000).
3. Temperature Gauge
The temperature gauge shows engine
coolant temperature. Any reading within
203°F - 230°F (95°C - 110°C) indicates
that the engine cooling system is oper -
ating satisfactorily.
The pointer will likely indicate a higher
temperature 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. 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 “Instru -
ment Cluster Display” in this chapter for
further information.
NOTE:
The hard telltales will illuminate for a bulb check
when the ignition is first cycled.
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, refer to “Cooling System” in
“Service and Maintenance” and follow the
warnings under the Cooling System Pressure
Cap paragraph.
CAUTION!
Driving with a hot engine cooling system
could damage your vehicle. If the
temperature gauge reads greater than 230°F
(110°C) 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 above 230°F
(110°C), turn the engine off immediately and
call an authorized dealer for service.

20_WD_OM_EN_USC_t.book Page 98

SAFETY181
The best protection against carbon monoxide
entry into the vehicle body is a properly
maintained engine exhaust system.
Whenever a change is noticed in the sound of
the exhaust system, when exhaust fumes can
be detected inside the vehicle, or when the
underside or rear of the vehicle is damaged,
have a competent mechanic inspect the
complete exhaust system and adjacent body
areas for broken, damaged, deteriorated, or
mispositioned parts. Open seams or loose
connections could permit exhaust fumes to
seep into the passenger compartment. In
addition, inspect the exhaust system each time
the vehicle is raised for lubrication or oil
change. Replace as required.
SAFETY CHECKS YOU SHOULD MAKE
I
NSIDE THE VEHICLE
Seat Belts
Inspect the seat belt system periodically,
checking for cuts, frays, and loose parts.
Damaged parts must be replaced immediately.
Do not disassemble or modify the system.
Front seat belt assemblies must be replaced
after a collision. Rear seat belt assemblies must
be replaced after a collision if they have been
damaged (i.e., bent retractor, torn webbing,
etc.). If there is any question regarding seat belt
or retractor condition, replace the seat belt.
Air Bag Warning Light
The Air Bag warning light will turn on for four
to eight seconds as a bulb check when the
ignition switch is first turned to ON/RUN. If the
light is either not on during starting, stays on, or
turns on while driving, have the system
inspected at an authorized dealer as soon as
possible. After the bulb check, this light will
illuminate with a single chime when a fault with
the Air Bag System has been detected. It will
stay on until the fault is removed. If the light comes on intermittently or remains
on while driving, have an authorized dealer
service the vehicle immediately.
Refer to “Occupant Restraint Systems” in this
section for further information.
Defroster
Check operation by selecting the defrost mode
and place the blower control on high speed. You
should be able to feel the air directed against
the windshield. See an authorized dealer for
service if your defroster is inoperable.
Floor Mat Safety Information
Always use floor mats designed to fit your
vehicle. Only use a floor mat that does not
interfere with the operation of the accelerator,
brake or clutch pedals. Only use a floor mat that
is securely attached using the floor mat
fasteners so it cannot slip out of position and
interfere with the accelerator, brake or clutch
pedals or impair safe operation of your vehicle
in other ways.
If it is necessary to sit in a parked vehicle
with the engine running, adjust your
heating or cooling controls to force outside
air into the vehicle. Set the blower at high
speed.
WARNING!
(Continued)
4

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204STARTING AND OPERATING
The engine will shut down, the tachometer will
move to the zero position and the Stop/Start
telltale will illuminate indicating you are in
Autostop. Customer settings will be maintained
upon return to an engine running condition.
Refer to the “Stop/Start System” in the
“Starting And Operating” section for further
information.
POSSIBLE REASONS THE ENGINE DOES
N
OT AUTOSTOP
Prior to engine shut down, the system will check
many safety and comfort conditions to see if
they are fulfilled. Detailed information about the
operation of the Stop/Start system may be
viewed in the instrument cluster display Stop/
Start Screen. In the following situations, the
engine will not stop:
Driver’s seat belt is not buckled.
Driver’s door is not closed.
Battery temperature is too warm or cold.
Battery charge is low.
The vehicle is on a steep grade.
Cabin heating or cooling is in process and an
acceptable cabin temperature has not been
achieved.
HVAC is set to full defrost mode at a high
blower speed.
HVAC set to MAX A/C.
Engine has not reached normal operating
temperature.
The transmission is not in a forward gear.
Hood is open.
Brake pedal is not pressed with sufficient
pressure.
Other Factors Which Can Inhibit Autostop
Include:
Accelerator pedal input.
Engine temp too high.
5 mph (8 km/h) threshold not achieved from
previous Autostop.
Steering angle beyond threshold.
ACC is on and speed is set. It may be possible for the vehicle to be driven
several times without the Stop/Start system
going into a STOP/START READY state under
more extreme conditions of the items listed
above.
TO START THE ENGINE WHILE IN
A
UTOSTOP MODE
While in a forward gear, the engine will start
when the brake pedal is released or the throttle
pedal is depressed. The transmission will
automatically re-engage upon engine restart.
Conditions That Will Cause The Engine To Start
Automatically While In Autostop Mode:
The transmission selector is moved out of
DRIVE.
To maintain cabin temperature comfort.
HVAC is set to full defrost mode.
HVAC system temperature or fan speed is
manually adjusted.
Battery voltage drops too low.

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244STARTING AND OPERATING
TRAILER TOWING WEIGHTS (MAXIMUM TRAILER WEIGHT RATINGS) — NON SRT
Trailer Hitch Classification Definitions
Class Max. Trailer Hitch Industry Standards
Class I - Light Duty 2,000 lbs (907 kg)
Class II - Medium Duty 3,500 lbs (1,587 kg)
Class III - Heavy Duty 6,000 lbs (2,722 kg)
Class IV - Extra Heavy Duty 10,000 lbs (4,535 kg)
Refer to the “Trailer Towing Weights (Maximum Trailer Weight Ratings)” chart for the Maximum Gross Trailer Weight (GTW) towable for your given
drivetrain.
All trailer hitches should be professionally installed on your vehicle.
Engine ModelGCWR (Gross
Combined Wt. Rating) Frontal Area Max. GTW
(Gross Trailer Wt.) Max. Trailer Tongue Wt.
(See Note)
3.6L RWD Light Duty
Cooling 8,900 lbs
(4,037 kg) 40 sq ft
(3.72 sq m) 3,500 lbs
(1,588 kg) 350 lbs (159 kg)
3.6L RWD11,600 lbs
(5,262 kg) 40 sq ft
(3.72 sq m) 6,200 lbs
(2,812 kg) 620 lbs (281 kg)
3.6L AWD Light Duty
Cooling 8,900 lbs
(4,037 kg) 40 sq ft
(3.72 sq m) 3,500 lbs
(1,588 kg) 350 lbs (159 kg)
3.6L AWD11,600 lbs
(5,262 kg) 40 sq ft
(3.72 sq m) 6,200 lbs
(2,812 kg) 620 lbs (281 kg)

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