2021 DODGE DURANGO cooling

6
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS ........................ 243
ASSIST AND SOS MIRROR — IF EQUIPPED...... 243
JACKING AND TIRE CHANGING ........................ 247 Preparations For Jacking ............................ 247
Jack Location ................................................. 248
Spare Tire Stowage ....................................... 249
Spare Tire Removal ....................................... 249
Jacking Instructions ..................................... 251
JUMP STARTING .................................................. 255
Preparations For Jump Start......................... 255Jump Starting Procedure .............................. 256
REFUELING IN EMERGENCY –
IF EQUIPPED ........................................................ 257
IF YOUR ENGINE OVERHEATS ............................ 258
MANUAL PARK RELEASE ................................... 258
FREEING A STUCK VEHICLE .............................. 260
TOWING A DISABLED VEHICLE .........................261
Rear Wheel Drive Models ............................. 262
All Wheel Drive Models ................................. 263
ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS) .................................................................. 263
EVENT DATA RECORDER (EDR) ......................... 263
SERVICING AND MAINTENANCE
SCHEDULED SERVICING ................................... 264
Maintenance Plan ......................................... 265
ENGINE COMPARTMENT .................................... 268
3.6L Engine ................................................... 268
5.7L Engine ................................................... 269
Checking Oil Level ......................................... 270
Adding Washer Fluid .................................... 270
Maintenance-Free Battery ........................... 270Pressure Washing ......................................... 271
VEHICLE MAINTENANCE..................................... 271
Engine Oil ...................................................... 271
Engine Oil Filter ............................................ 272
Engine Air Cleaner Filter ............................ 272
Air Conditioner Maintenance ..................... 273
Accessory Drive Belt Inspection ................... 275Body Lubrication .......................................... 276
Windshield Wiper Blades ............................. 276
Exhaust System ............................................ 279
Cooling System .............................................. 280
Brake System ............................................... 283
Automatic Transmission ............................... 284
Front/Rear Axle Fluid ................................... 285Transfer Case ............................................... 285
Fuses.............................................................. 286
Bulb Replacement......................................... 293 TIRES ..................................................................... 295
Tire Safety Information ................................. 295
Tires — General Information ........................ 303Tire Types....................................................... 306Spare Tires — If Equipped ............................ 307
Wheel And Wheel Trim Care ........................ 309Snow Traction Devices ................................. 310
Tire Rotation Recommendations ................ 312
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES .................... 312
Treadwear...................................................... 312
Traction Grades ............................................. 313Temperature Grades..................................... 313
STORING THE VEHICLE .................................... 313
BODYWORK .......................................................... 313 Protection From Atmospheric Agents .......... 313
Body And Underbody Maintenance ............. 314
Preserving The Bodywork ............................. 314
INTERIORS ........................................................... 315
Seats And Fabric Parts ................................. 315
Plastic And Coated Parts .............................. 315
Leather Surfaces........................................... 316
Glass Surfaces ............................................. 316

21_WD_OM_EN_USC_t.book Page 6

GETTING TO KNOW YOUR VEHICLE63
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 Úpage 322.
Winter Operation
To ensure the best possible heater and defroster
performance, make sure the engine cooling
system is functioning properly and the proper
amount, type, and concentration of coolant is
used. Use of the Air Recirculation mode during
Winter months is not recommended, because it
may cause window fogging.
Vacation/Storage
For information on maintaining the Climate Control
system when the vehicle is being stored for an
extended period of time, see Úpage 313.
Window Fogging
Interior fogging on the windshield can be quickly
removed by turning the mode selector to Defrost.
The Defrost/Floor mode can be used to maintain a
clear windshield and provide sufficient heating. If
side window fogging becomes objectionable, increase blower speed to improve airflow and
clearing of the side windows. Vehicle windows tend
to fog on the inside in mild but rainy or humid
weather.
NOTE:
Recirculate without A/C should not be used for
long periods, as fogging may occur.
Automatic Temperature Controls (ATC) will auto
-
matically adjust the climate control settings to
reduce or eliminate window fogging on the front
windshield. When this occurs, recirculation will
be unavailable.
Outside Air Intake
Make sure the air intake, located directly in front of
the windshield, is free of obstructions, such as
leaves. Leaves collected in the air intake may
reduce airflow, and if they enter the air distribution
box, they could plug the water drains. In Winter
months, make sure the air intake is clear of ice,
slush, and snow.
Cabin Air Filter
The Climate Control system filters out dust and
pollen from the air. Contact an authorized dealer to
service your cabin air filter, and to have it replaced
when needed Ú page 271.
Stop/Start System — If Equipped
While in an Autostop, the Climate Control system
may automatically adjust airflow to maintain cabin
comfort. Customer settings will be maintained
upon return to an engine running condition.
Windshield Wiper De-Icer — If Equipped
The Windshield Wiper De-Icer is a heating element
located at the base of the windshield.
It operates automatically once the following
conditions are met:
Activation By Front Defrost
The Windshield Wiper De-Icer activates auto -
matically during a cold weather manual start
with full defrost, and when the ambient
temperature is below 33°F (0.6°C) .
Activation By Rear Defrost
The Windshield Wiper De-Icer activates auto -
matically when the Rear Defrost is operating
and the ambient temperature is below 33°F
(0.6°C) .
Activation By Remote Start Operation
When the Remote Start is activated and the
outside ambient temperature is less than 33°F
(0.6°C) the Windshield Wiper De-Icer is acti-
vated. Exiting Remote Start will resume its
previous operation. If the Windshield Wiper
De-Icer was active, the timer and operation will
continue.
2

21_WD_OM_EN_USC_t.book Page 63

GETTING TO KNOW YOUR INSTRUMENT PANEL83
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 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. Instrument Cluster DisplayThe instrument cluster display features a
driver interactive display Ú
page 83.
5. 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 Ú page 140.
NOTE:The hard telltales will illuminate for a bulb check
when the ignition is first cycled.
INSTRUMENT CLUSTER DISPLAY
Your vehicle is equipped with an instrument cluster
display, which offers useful information to the
driver. With the ignition in the OFF mode, opening/
closing of a door will activate the display for
viewing, and display the total miles, or kilometers,
in the odometer. Your instrument cluster display is
designed to display important information about
your vehicle’s systems and features. Using a driver
interactive display located on the instrument
panel, your instrument cluster display can show
how systems are working and give you warnings
when they are not. The steering wheel mounted
controls allow you to scroll through the main
menus and submenus. You can access the specific
information you want and make selections and
adjustments.
LOCATION AND CONTROLS
The instrument cluster display is located in the
center of the instrument cluster.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
Úpage 280.
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.
3

21_WD_OM_EN_USC_t.book Page 83

118STARTING AND OPERATING
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 pres -
sure.
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
pressed. 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.
Stop/Start OFF switch is pushed.
A Stop/Start system error occurs.
TO MANUALLY TURN OFF THE
S
TOP/START SYSTEM

Stop/Start OFF Switch

Push the Stop/Start OFF switch (located on the
switch bank). The light on the switch will illuminate.
The “STOP/START OFF” message will appear in the
instrument cluster display and the autostop mode
will be disabled Ú page 83.
NOTE:The Stop/Start system will reset itself back to the
ON mode every time the ignition is turned OFF and
back ON.

21_WD_OM_EN_USC_t.book Page 118

STARTING AND OPERATING145
TRAILER HITCH CLASSIFICATION
The following chart provides the industry standard for the maximum trailer weight a given trailer hitch class can tow and should be used to assist you in selecting
the correct trailer hitch for your intended towing condition.
TRAILER TOWING WEIGHTS (MAXIMUM TRAILER WEIGHT RATINGS)
Trailer Hitch Classification Definitions
Class Max. Trailer Hitch Industry Standards
Class I - Light Duty 2,000 lb (907 kg)
Class II - Medium Duty 3,500 lb (1,588 kg)
Class III - Heavy Duty 6,000 lb (2,721 kg)
Class IV - Extra Heavy Duty 10,000 lb (4,535 kg)
For the Maximum Gross Trailer Weight (GTW) towable for your given drivetrain see Ú page 145.
All trailer hitches should be professionally installed on your vehicle.
Engine GCWRFrontal Area Maximum GTW Maximum Trailer TW (See Note)
3.6L - RWD Light Duty Cooling 8,900 lb (4,037 kg) 40 sq ft (3.72 sq m) 3,500 lb (1,588 kg) 350 lb (159 kg)
3.6L - RWD 11,600 lb (5,262 kg) 40 sq ft (3.72 sq m) 6,200 lb (2,812 kg) 620 lb (281 kg)
3.6L - AWD Light Duty Cooling 8,900 lb (4,037 kg) 40 sq ft (3.72 sq m) 3,500 lb (1,588 kg) 350 lb (159 kg)
3.6L - AWD 11,600 lb (5,262 kg) 40 sq ft (3.72 sq m) 6,200 lb (2,812 kg) 620 lb (281 kg)
5.7L - RWD 13,100 lb (5,942 kg) 60 sq ft (5.57 sq m) 7,400 lb (3,357 kg) 740 lb (336 kg)
5.7L - AWD 13,100 lb (5,942 kg) 60 sq ft (5.57 sq m) 7,200 lb (3,266 kg) 720 lb (327 kg)
5.7L - AWD R/T Tow N Go 14,600 lb (6,622 kg) 60 sq ft (5.57 sq m) 8,700 lb (3,946 kg) 870 lb (395 kg)
Refer to local laws for maximum trailer towing speeds.
4

21_WD_OM_EN_USC_t.book Page 145

SAFETY241
PERIODIC SAFETY CHECKS YOU SHOULD
M
AKE OUTSIDE THE VEHICLE
Tires
Examine tires for excessive tread wear and uneven
wear patterns. Check for stones, nails, glass, or
other objects lodged in the tread or sidewall.
Inspect the tread for cuts and cracks. Inspect
sidewalls for cuts, cracks, and bulges. Check the
lug nut/bolt torque for tightness. Check the tires
(including spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of brake
lights and exterior lights while you work the
controls. Check turn signal and high beam
indicator lights on the instrument panel.
Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check area under the vehicle after overnight
parking for fuel, coolant, oil, or other fluid leaks.
Also, if gasoline fumes are detected or if fuel or
brake fluid leaks are suspected, the cause should
be located and corrected immediately.
EXHAUST GAS
NEVER place any objects under the floor mat
(e.g., towels, keys, etc.). These objects could
change the position of the floor mat and may
cause interference with the accelerator,
brake, or clutch pedals.
If the vehicle carpet has been removed and
re-installed, always properly attach carpet to
the floor and check the floor mat fasteners are
secure to the vehicle carpet. Fully depress
each pedal to check for interference with the
accelerator, brake, or clutch pedals then
re-install the floor mats.
It is recommended to only use mild soap and
water to clean your floor mats. After cleaning,
always check your floor mat has been properly
installed and is secured to your vehicle using
the floor mat fasteners by lightly pulling mat.
WARNING!
WARNING!
Exhaust gases can injure or kill. They contain
carbon monoxide (CO), which is colorless and
odorless. Breathing it can make you
unconscious and can eventually poison you. To
avoid breathing (CO), follow these safety tips:
Do not run the engine in a closed garage or in
confined areas any longer than needed to
move your vehicle in or out of the area.
If you are required to drive with the trunk/lift -
gate/rear doors open, make sure that all
windows are closed and the climate control
BLOWER switch is set at high speed. DO NOT
use the recirculation mode.
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.
6

21_WD_OM_EN_USC_t.book Page 241

256IN CASE OF EMERGENCY
3. Remove the protective cover over the remote positive (+) battery post. Pull upward on the
cover to remove it.
4. If using another vehicle to jump start the battery, park the vehicle within the jumper
cables reach, apply the parking brake and
make sure the ignition is OFF.
JUMP STARTING PROCEDURE
NOTE:Make sure at all times that unused ends of jumper
cables are not contacting each other or either
vehicle while making connections.
Connecting The Jumper Cables

1. Connect the positive
(+) end of the jumper
cable to the remote positive (+)
post of the
discharged vehicle.

2. Connect the opposite end of the positive (+)
jumper cable to the positive (+) post of the
booster battery.
3. Connect the negative (-) end of the jumper
cable to the negative (-) post of the booster
battery. 4. Connect the opposite end of the negative
(-)
jumper cable to the remote negative (-) post
(exposed metallic/unpainted post of the
discharge vehicle) located on the right hand
side next to the underhood fuse box.
5. Start the engine in the vehicle that has the booster battery, let the engine idle a few
minutes, and then start the engine in the
vehicle with the discharged battery.
6. Once the engine is started, follow the discon -
necting procedure below.
WARNING!
Take care to avoid the radiator cooling fan
whenever the hood is raised. It can start
anytime the ignition switch is ON. You can be
injured by moving fan blades.
Remove any metal jewelry such as rings,
watch bands and bracelets that could make
an inadvertent electrical contact. You could be
seriously injured.
Batteries contain sulfuric acid that can burn
your skin or eyes and generate hydrogen gas
which is flammable and explosive. Keep open
flames or sparks away from the battery.
WARNING!
Do not allow vehicles to touch each other as this
could establish a ground connection and
personal injury could result.
WARNING!
Failure to follow this jump starting procedure
could result in personal injury or property
damage due to battery explosion.
CAUTION!
Failure to follow these procedures could result in
damage to the charging system of the booster
vehicle or the discharged vehicle.
WARNING!
Do not connect the jumper cable to the
negative (-) post of the discharged battery. The
resulting electrical spark could cause the battery
to explode and could result in personal injury.
CAUTION!
Do not run the booster vehicle engine above
2,000 RPM since it provides no charging benefit,
wastes fuel, and can damage booster vehicle
engine.

21_WD_OM_EN_USC_t.book Page 256

258IN CASE OF EMERGENCY
IF YOUR ENGINE OVERHEATS
If the vehicle is overheating, it will need to be
serviced by an authorized dealer.
In any of the following situations, you can reduce
the potential for overheating by taking the
appropriate action.
On the highways — slow down.
In city traffic — while stopped, place the trans -
mission in NEUTRAL (N), but do not increase the
engine idle speed while preventing vehicle
motion with the brakes.
NOTE:There are steps that you can take to slow down an
impending overheat condition:
If your Air Conditioner (A/C) is on, turn it off. The
A/C system adds heat to the engine cooling
system and turning the A/C off can help remove
this heat.
You can also turn the temperature control to
maximum heat, the mode control to floor and
the blower control to high. This allows the heater
core to act as a supplement to the radiator and
aids in removing heat from the engine cooling
system.
MANUAL PARK RELEASE
WARNING!
Never have any smoking materials lit in or
near the vehicle when the fuel door is open or
the tank is being filled.
Never add fuel when the engine is running.
This is in violation of most state and federal
fire regulations and may cause the Malfunc -
tion Indicator Light to turn on.
A fire may result if fuel is pumped into a
portable container that is inside of a vehicle.
You could be burned. Always place fuel
containers on the ground while filling.
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator.
If you see or hear steam coming from under the
hood, do not open the hood until the radiator
has had time to cool. Never try to open a cooling
system pressure cap when the radiator or
coolant bottle is hot.
CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads
HOT (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 HOT (H), and you hear
continuous chimes, turn the engine off
immediately and call for service.
WARNING!
Always secure your vehicle by fully applying the
parking brake before activating the Manual Park
Release. In addition, you should be seated in the
driver’s seat with your foot firmly on the brake
pedal when activating the Manual Park Release.
Activating the Manual Park Release will allow
your vehicle to roll away if it is not secured by the
parking brake, or by proper connection to a tow
vehicle. Activating the Manual Park Release on
an unsecured vehicle could lead to serious
injury or death for those in or around the vehicle.

21_WD_OM_EN_USC_t.book Page 258