engine overheat DODGE DURANGO 2020 User Guide

198STARTING AND OPERATING
Operation
To activate AutoStick mode, move the gear
selector into the MANUAL (M) position (beside
the DRIVE (D) position), or tap one of the shift
paddles on the steering wheel (if equipped).
Tapping the (-) shift paddle (if equipped) to
enter AutoStick mode will downshift the
transmission to the next lower gear, while
tapping (+) to enter AutoStick mode will retain
the current gear. The current transmission gear
will be displayed in the instrument cluster. In
AutoStick mode, you can use the gear selector
(in the MANUAL position), or the shift paddles (if
equipped), to manually shift the transmission.
Tapping the gear selector forward (-) while in the
MANUAL (M) position, or tapping the (-) shift
paddle (if equipped), will downshift the
transmission to the next lower gear. Tapping the
selector rearward (+) or tapping the (+) shift
paddle (if equipped) will command an upshift.
NOTE:
The shift paddles (if equipped) may be disabled
(or re-enabled, as desired) using the Uconnect
Personal Settings. In AutoStick mode, the transmission will shift up
or down when (+/-) is manually selected by the
driver, unless an engine lugging or overspeed
condition would result. It will remain in the
selected gear until another upshift or downshift
is chosen, except as described below.
The transmission will automatically down
-
shift as the vehicle slows (to prevent engine
lugging) and will display the current gear.
The transmission will automatically down -
shift to FIRST gear when coming to a stop.
After a stop, the driver should manually
upshift (+) the transmission as the vehicle is
accelerated.
You can start out, from a stop, in FIRST or
SECOND gear. Tapping (+) at a stop will allow
starting in SECOND gear. Starting out in
SECOND gear can be helpful in snowy or icy
conditions.
If a requested downshift would cause the
engine to over-speed, that shift will not occur.
The system will ignore attempts to upshift at
too low of a vehicle speed.
Holding the (-) paddle depressed (if
equipped), or holding the gear selector in the
(-) position, will downshift the transmission to
the lowest gear possible at the current
speed.
Transmission shifting will be more noticeable
when AutoStick is enabled.
The system may revert to automatic shift
mode if a fault or overheat condition is
detected.
To disengage AutoStick mode, return the gear
selector to the DRIVE (D) position, or press and
hold the (+) shift paddle (if equipped, and if the
gear selector is already in DRIVE) until "D" is
once again indicated in the instrument cluster.
You can shift in or out of AutoStick mode at any
time without taking your foot off the accelerator
pedal.
WARNING!
Do not downshift for additional engine
braking on a slippery surface. The drive
wheels could lose their grip and the vehicle
could skid, causing a collision or personal
injury.

20_WD_OM_EN_USC_t.book Page 198

252STARTING AND OPERATING
Automatic Transmission
Select the DRIVE (D) range when towing. The
transmission controls include a drive strategy to
avoid frequent shifting when towing. However, if
frequent shifting does occur while in DRIVE, you
can use the AutoStick shift control to manually
select a lower gear.
NOTE:
Using a lower gear while operating the vehicle
under heavy loading conditions, will improve
performance and extend transmission life by
reducing excessive shifting and heat buildup.
This action will also provide better engine
braking.
AutoStick
When using the AutoStick shift control, select
the highest gear that allows for adequate
performance and avoids frequent down -
shifts. For example, choose “5” if the desired
speed can be maintained. Choose “4” or “3”
if needed to maintain the desired speed.
To prevent excess heat generation, avoid
continuous driving at high RPM. Reduce
vehicle speed as necessary to avoid
extended driving at high RPM. Return to a
higher gear or vehicle speed when grade and
road conditions allow.
Speed Control — If Equipped
Do not use on hilly terrain or with heavy
loads.
When using the Speed Control, if you experi -
ence speed drops greater than 10 mph
(16 km/h), disengage until you can get back
to cruising speed.
Use Speed Control in flat terrain and with
light loads to maximize fuel efficiency.
Cooling System
To reduce potential for engine and transmission
overheating, take the following actions:
City Driving
In city traffic — while stopped, place the trans -
mission in NEUTRAL (N), but do not increase
engine idle speed. Highway Driving
Reduce speed.
Temporarily turn off air conditioning.
SNOW PLOW
Snow plows, winches, and other aftermarket
equipment should
not be added to the front end
of your vehicle. The airbag crash sensors may
be affected by the change in the front end
structure. The airbags could deploy
unexpectedly or could fail to deploy during a
collision.
WARNING!
Do not add a snow plow, winches, or any
other aftermarket equipment to the front of
your vehicle. This could adversely affect the
functioning of the airbag system and you
could be injured.

20_WD_OM_EN_USC_t.book Page 252

IN CASE OF EMERGENCY287
IF YOUR ENGINE OVERHEATS
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
To move the vehicle in cases where the
transmission will not shift out of PARK (P) (such
as a depleted battery), a Manual Park Release
is available.
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.
6

20_WD_OM_EN_USC_t.book Page 287

290IN CASE OF EMERGENCY
(Continued)
TOWING A DISABLED VEHICLE
This section describes procedures for towing a
disabled vehicle using a commercial towing
service. If the transmission and drivetrain are
operable, disabled vehicles may also be towed
as described under “Recreational Towing” in
“Starting And Operating”.
CAUTION!
Racing the engine or spinning the wheels
may lead to transmission overheating and
failure. Allow the engine to idle with the
transmission in NEUTRAL for at least one
minute after every five rocking-motion
cycles. This will minimize overheating and
reduce the risk of transmission failure
during prolonged efforts to free a stuck
vehicle.When “rocking” a stuck vehicle by shifting
between DRIVE and REVERSE, do not spin
the wheels faster than 15 mph (24 km/h), or drivetrain damage may result.
Revving the engine or spinning the wheels
too fast may lead to transmission over -
heating and failure. It can also damage the
tires. Do not spin the wheels above 30 mph
(48 km/h) while in gear (no transmission
shifting occurring).
CAUTION! (Continued)

20_WD_OM_EN_USC_t.book Page 290

320SERVICING AND MAINTENANCE
(Continued)
(Continued)
EXHAUST SYSTEM
The best protection against carbon monoxide
entry into the vehicle body is a properly
maintained engine exhaust system.
If you notice a change in the sound of the
exhaust system; or if the exhaust fumes can be
detected inside the vehicle; or when the
underside or rear of the vehicle is damaged;
have an authorized technician 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, have the exhaust system inspected
each time the vehicle is raised for lubrication or
oil change. Replace as required. Under normal operating conditions, the
catalytic converter will not require
maintenance. However, it is important to keep
the engine properly tuned to ensure proper
catalyst operation and prevent possible catalyst
damage.
NOTE:
Intentional tampering with emissions control
systems can result in civil penalties being
assessed against you.
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, refer
to “Safety Tips” in “Safety” for further
information.
A hot exhaust system can start a fire if you
park over materials that can burn. Such
materials might be grass or leaves coming
into contact with your exhaust system. Do
not park or operate your vehicle in areas
where your exhaust system can contact
anything that can burn.
CAUTION!
The catalytic converter requires the use of
unleaded fuel only. Leaded gasoline will
destroy the effectiveness of the catalyst as
an emissions control device and may seri
-
ously reduce engine performance and
cause serious damage to the engine.
WARNING! (Continued)
Damage to the catalytic converter can
result if your vehicle is not kept in proper
operating condition. In the event of engine
malfunction, particularly involving engine
misfire or other apparent loss of perfor -
mance, have your vehicle serviced
promptly. Continued operation of your
vehicle with a severe malfunction could
cause the converter to overheat, resulting
in possible damage to the converter and
vehicle.
CAUTION! (Continued)

20_WD_OM_EN_USC_t.book Page 320

SERVICING AND MAINTENANCE321
In unusual situations involving grossly
malfunctioning engine operation, a scorching
odor may suggest severe and abnormal catalyst
overheating. If this occurs, stop the vehicle, turn
off the engine and allow it to cool. Service,
including a tune-up to manufacturer's
specifications, should be obtained immediately.
To minimize the possibility of catalytic converter
damage:
Do not interrupt the ignition when the trans -
mission is in gear and the vehicle is in
motion.
Do not try to start the vehicle by pushing or
towing the vehicle.
Do not idle the engine with any ignition
components disconnected or removed, such
as when diagnostic testing, or for prolonged
periods during very rough idle or malfunc -
tioning operating conditions.
COOLING SYSTEMEngine Coolant Checks
Check the engine coolant (antifreeze)
protection every 12 months (before the onset of
freezing weather, where applicable). If the
engine coolant (antifreeze) is dirty, the system
should be drained, flushed, and refilled with
fresh OAT coolant (conforming to MS.90032) by
an authorized dealer. Check the front of the
A/C condenser for any accumulation of bugs,
leaves, etc. If dirty, clean by gently spraying
water from a garden hose vertically down the
face of the condenser.
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.
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 open a cooling system pres -
sure cap when the radiator or coolant bottle
is hot.
Keep hands, tools, clothing, and jewelry
away from the radiator cooling fan when
the hood is raised. The fan starts automati -
cally and may start at any time, whether the
engine is running or not.
When working near the radiator cooling fan,
disconnect the fan motor lead or turn the
ignition to the OFF mode. The fan is
temperature controlled and can start at any
time the ignition is in the ON mode.7

20_WD_OM_EN_USC_t.book Page 321

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

20_WD_OM_EN_USC_t.book Page 323

354TECHNICAL SPECIFICATIONS
(Continued)
The MMT content of gasoline may not be
indicated on the gasoline pump; therefore, you
should ask your gasoline retailer whether the
gasoline contains MMT. MMT is prohibited in
Federal and California reformulated gasoline.
FUEL SYSTEM CAUTIONS
NOTE:
Intentional tampering with the emissions
control system can result in civil penalties being
assessed against you.
CARBON MONOXIDE WARNINGS
CAUTION!
Follow these guidelines to maintain your
vehicle’s performance:
The use of leaded gasoline is prohibited by
Federal law. Using leaded gasoline can
impair engine performance and damage
the emissions control system.
An out-of-tune engine or certain fuel or igni -
tion malfunctions can cause the catalytic
converter to overheat. If you notice a
pungent burning odor or some light smoke,
your engine may be out of tune or malfunc -
tioning and may require immediate service.
Contact an authorized dealer for service
assistance.
The use of fuel additives, which are now
being sold as octane enhancers, is not
recommended. Most of these products
contain high concentrations of methanol.
Fuel system damage or vehicle perfor -
mance problems resulting from the use of
such fuels or additives is not the responsi -
bility of the manufacturer and may void or
not be covered under the New Vehicle
Limited Warranty.
CAUTION! (Continued)
WARNING!
Carbon monoxide (CO) in exhaust gases is
deadly. Follow the precautions below to
prevent carbon monoxide poisoning:
Do not inhale exhaust gases. They contain
carbon monoxide, a colorless and odorless
gas, which can kill. Never run the engine in
a closed area, such as a garage, and never
sit in a parked vehicle with the engine
running for an extended period. If the
vehicle is stopped in an open area with the
engine running for more than a short
period, adjust the ventilation system to
force fresh, outside air into the vehicle.
Guard against carbon monoxide with
proper maintenance. Have the exhaust
system inspected every time the vehicle is
raised. Have any abnormal conditions
repaired promptly. Until repaired, drive with
all side windows fully open.

20_WD_OM_EN_USC_t.book Page 354

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

20_WD_OM_EN_USC_t.book Page 450

453
Locks Child Protection
........................................... 29Manual........................................................ 24Power Door.................................................. 25Lubrication, Body........................................... 316Lug Nuts/Bolts.............................................. 350Luggage Carrier............................................... 90
M
Maintenance................................................... 74Maintenance Free Battery............................. 307Maintenance Schedule........................ 294, 298Malfunction Indicator Light
(Check Engine).................................... 113, 121ManualService...................................................... 447Memory Feature (Memory Seats).................... 30Memory Seat................................................... 30Memory Seats And Radio................................ 30Methanol....................................................... 353Mirrors............................................................. 47Electric Remote........................................... 49Exterior Folding........................................... 48Heated........................................................ 49Outside........................................................ 48Rearview..................................... 47, 48, 261Vanity.......................................................... 50Modifications/AlterationsVehicle........................................................ 11
Monitor, Tire Pressure System...................... 138Mopar Parts.................................................. 446Multi-Function Control Lever............................ 50
N
New Vehicle Break-In Period......................... 188
O
Occupant Restraints..................................... 143Octane Rating, Gasoline (Fuel)............ 351, 359Oil Change Indicator..................................... 101Reset........................................................ 101Oil Filter, Change.......................................... 311Oil Filter, Selection........................................ 311Oil Pressure Light.......................................... 112Oil, Engine............................................ 308, 359Capacity........................................... 355, 356Change Interval............................... 308, 309Dipstick.................................................... 307Disposal................................................... 311Filter................................................ 311, 359Filter Disposal........................................... 311Identification Logo.................................... 310Materials Added To.................................. 311Pressure Warning Light............................ 112Recommendation................... 309, 355, 356Synthetic.................................................. 311Viscosity........................ 309, 310, 355, 356
Onboard Diagnostic System.......................... 120Opener, Garage Door (Homelink).....................78Operating Precautions.................................. 120Operator ManualOwner's Manual................................. 10, 447Outside Rearview Mirrors.................................48Overheating, Engine...................................... 287
P
Paint Care..................................................... 346Parking Brake............................................... 190ParkSense System, Rear...................... 221, 227Passive Entry....................................................26Performance................................................. 104Pets............................................................... 180Pinch Protection...............................................74Placard, Tire And Loading Information.......... 332PowerBrakes...................................................... 350Distribution Center (Fuses)....................... 270Door Locks...................................................25Inverter........................................................90Liftgate........................................................75Mirrors.........................................................49Outlet (Auxiliary Electrical Outlet).................87Seats...........................................................37Steering........................................... 202, 358Sunroof........................................................73Tilt/Telescoping Steering Column................46Windows......................................................71
11

20_WD_OM_EN_USC_t.book Page 453