2018 DODGE DURANGO Engine cooling fan

•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 Autostop 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 en-
gine restart.
Conditions That Will Cause The Engine To Start Auto-
matically 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.
• Low brake vacuum (e.g. after several brake pedal appli-
cations).
• STOP/START OFF switch is pushed.
• A STOP/START system error occurs.
288 STARTING AND OPERATING

CavityCartridge Fuse Micro Fuse Description
F03 60 Amp Yellow –Radiator Fan
F05 40 Amp Green –Compressor for Air Suspension — If
Equipped
F06 40 Amp Green –Anti-lock Brakes/Electronic Stability Control
Pump
F07 30 Amp Pink –Starter Solenoid
F09 30 Amp Pink –Diesel Fuel Heater (Diesel Engine Only)/
Brake Vacuum Pump
F10 40 Amp Green –Body Controller/Exterior Lighting #2
F11 30 Amp Pink –Trailer Tow Electric Brake — If Equipped
F12 40 Amp Green –Body Controller #3/Power Locks
F13 40 Amp Green –Blower Motor Front
F14 40 Amp Green –Body Controller #4/Exterior Lighting #1
F15 40 Amp Green –LTR (Low Temperature Radiator) Engine
Cooling Pump
F17 30 Amp Pink –Headlamp Washer — If Equipped
F19 20 Amp Blue –Headrest Solenoid — If Equipped
F20 30 Amp Pink –Passenger Door Module
F22 20 Amp Blue –Engine Control Module
F23 30 Amp Pink –Interior Lights #1
378 IN CASE OF EMERGENCY

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 transmission 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 malfunctioning operating conditions.
Cooling System
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,
(Continued)
WARNING! (Continued)
do not open the hood until the radiator has had time
to cool. Never open a cooling system pressure 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 automatically and may start at any time,
whether the engine is running or not.
• When working near the radiator cooling fan, discon-
nect 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.
Engine Coolant Checks
Check the engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where appli-
cable). 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 accumula-
tion of bugs, leaves, etc. If dirty, clean by gently spraying
water from a garden hose vertically down the face of the
condenser.
432 SERVICING AND MAINTENANCE

Light.................................111
Luggage Carrier ........................ .133
Cargo Light ...............................111
Cargo Tie-Downs ...........................112
Car Washes ...............................465
Cellular Phone ............................547
Center High Mounted Stop Light ...............376
Chains, Tire ............................. .461
Changing A Flat Tire ........................441
Chart, Tire Sizing .......................... .442
Check Engine Light (Malfunction Indicator Light). . . .168
Checking Your Vehicle For Safety ...............252
Checks, Safety ............................ .252
Child Restraint ............................226
Child Restraints Booster Seats ............................230
Child Seat Installation .....................246
How To Stow An unused ALR Seat Belt ........242
Infant And Child Restraints .................228
Locating The LATCH Anchorages .............236
Lower Anchors And Tethers For Children .......232
Older Children And Child Restraints ...........229
Seating Positions ........................ .231
Child Safety Locks ..........................39
Clean Air Gasoline ........................ .474Cleaning
Wheels ............................... .460
Climate Control ............................85
Automatic ..............................86
Cold Weather Operation ..................... .267
Compact Disc (CD) Maintenance ................566
Compact Spare Tire ........................ .458
Contract, Service .......................... .570
Cooling Pressure Cap (Radiator Cap) ............435
Cooling System ............................432
Adding Coolant (Antifreeze) .................434
Coolant Level .......................... .435
Cooling Capacity ........................ .477
Disposal Of

Used Coolant ..................435
Drain, Flush, And Refill ....................433
Inspection ..........................432, 435
Points To Remember ..................... .436
Pressure Cap ............................435
Radiator Cap .......................... .435
Selection Of Coolant (Antifreeze) .......433, 477, 479
Corrosion Protection ........................464
Cruise Control (Speed Control) ..............289, 293
Cruise Light .......................... .165, 166
Cupholders .......................... .125, 126
Customer Assistance ........................568
576 INDEX