2021 DODGE DURANGO radiator

SERVICING AND MAINTENANCE283
(Continued)
Cooling System Notes
NOTE:When the vehicle is stopped after a few miles/kilo -
meters 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 (antifreeze) 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 needs to be added, the contents of the
coolant expansion bottle must also be protected
against freezing.
If frequent engine coolant additions are
required, the cooling system should be pressure
tested for leaks.
Maintain engine coolant concentration at a
minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corro -
sion protection of your engine which contains
aluminum components.
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 neces -
sary, install ONLY the correct type thermostat.
Other designs may result in unsatisfactory
engine cooling performance, poor gas mileage,
and increased emissions.
BRAKE SYSTEM
In order to ensure brake system performance, all
brake system components should be inspected
periodically. For the proper maintenance intervals
Ú page 265.
Fluid Level Check — Brake Master Cylinder
The fluid level of the master cylinder should be
checked whenever the vehicle is serviced, or
immediately if the brake system warning light is on.
If necessary, add fluid to bring level within the
designated marks on the side of the reservoir of
the brake master cylinder. Be sure to clean the top
of the master cylinder area before removing cap.
With disc brakes, fluid level can be expected to fall
as the brake pads wear. Brake fluid level should be
checked when pads are replaced. If the brake fluid
is abnormally low, check the system for leaks. For
further information Ú page 323.
WARNING!
Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting
or riding on the brake pedal can result in
abnormally high brake temperatures, excessive
lining wear, and possible brake damage. You
would not have your full braking capacity in an
emergency.
WARNING!
Use only manufacturer recommended brake
fluid Úpage 323. Using the wrong type of
brake fluid can severely damage your brake
system and/or impair its performance. The
proper type of brake fluid for your vehicle is
also identified on the original factory installed
hydraulic master cylinder reservoir.
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21_WD_OM_EN_USC_t.book Page 283

SERVICING AND MAINTENANCE287
Underhood Fuses
The Power Distribution Center is located in the
engine compartment near the battery jump start
posts. This center contains cartridge fuses, micro
fuses, relays, and circuit breakers. A description of
each fuse and component may be stamped on the
inside cover, otherwise the cavity number of each
fuse is stamped on the inside cover that
corresponds to the following chart.

Power Distribution Center Location

CavityCartridge Fuse Micro Fuse Description
* If Equipped
F01 ––Spare
F02 ––Spare
F03 60 Amp Yellow –Radiator Fan*
F04 60 Amp Yellow –ESC Pump NON-SRT
F05 40 Amp Green –Air Suspension Compressor*
F06 40 Amp Green –ABS Pump SRT
F07 30 Amp Pink –Starter Solenoid
F08 ––Spare
F09 30 Amp Pink –Diesel Fuel Heater (Diesel Engine Only)/Brake Vacuum Pump*
F10 40 Amp Green –CBC #2/Exterior Lighting
F11 30 Amp Pink –Trailer Tow Electric Brake*
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288SERVICING AND MAINTENANCE
F12 40 Amp Green –CBC #3/Power Locks
F13 40 Amp Green –Blower Motor Front
F14 40 Amp Green –Body Controller #4/Exterior Light
F15 40 Amp Green –Low Temperature Radiator (LTR) Engine Cooling Pump*
F16 ––Spare
F17 30 Amp Pink –Headlamp Washers*
F18 ––Spare
F19 20 Amp Blue –Headrest Solenoid*
F20 30 Amp Pink –Passenger Door Module
F21 ––Spare
F22 20 Amp Blue –Engine Control Module/Power Control Module*
F23 30 Amp Pink –CBC #1/Interior Light
F24 30 Amp Pink –Driver Door Module
F25 30 Amp Pink –Front Wipers
F26 30 Amp Pink –ESP/ECU Valves
F27 ––Spare
F28 20 Amp Blue –Trailer Tow Backup Lights*
F29 20 Amp Blue –Trailer Tow Parking Lights*
F30 30 Amp Pink –Trailer Tow (Receptacle) / Trailer Tow (Separate E-Brake) / Trailer Tow (BUX)*
F31 ––Spare
Cavity Cartridge Fuse Micro Fuse Description
* If Equipped

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329
B
Battery
.................................................... 92, 270Charging System Light................................. 92Keyless Key Fob Replacement.................... 15Battery Saver Feature...................................... 52Belts, Seat..................................................... 239Blind Spot Monitoring.................................... 195Body Mechanism Lubrication........................ 276B-Pillar Location............................................. 300Brake Assist System...................................... 190Brake Control System, Electronic.................. 190Brake Fluid.......................................... 283, 323Brake System...................................... 283, 317Anti-Lock (ABS).......................................... 317Fluid Check............................................... 283Master Cylinder......................................... 283Parking...................................................... 105Warning Light.............................................. 91Brake/Transmission Interlock....................... 107Bulb Replacement............................... 293, 294Bulbs, Light.................................................... 241
C
Camera, Rear................................................ 139Capacities, Fluid............................................ 321Caps, Filler Oil (Engine)................................................ 268Radiator (Coolant Pressure)...................... 282Car Washes................................................... 314
Carbon Monoxide Warning................... 241, 242Cargo Area Cover............................................. 76Cargo Compartment........................................ 76Light............................................................ 76Luggage Carrier........................................... 77Cargo Light....................................................... 76Cargo Tie-Downs.............................................. 77Cellular Phone.............................................. 188Center High Mounted Stop Light................... 295Certification Label......................................... 141Chains, Tire................................................... 310Chart, Tire Sizing........................................... 296Check Engine Light
(Malfunction Indicator Light)......................... 100Checking Your Vehicle For Safety................. 239Checks, Safety.............................................. 239Child Restraint.............................................. 223Child RestraintsBooster Seats........................................... 225Child Seat Installation.............................. 236How To Stow An unused ALR Seat Belt.............................................. 233Infant And Child Restraints....................... 224Locating The LATCH Anchorages.............. 229Lower Anchors And Tethers For Children................................................ 226Older Children And Child Restraints......... 225Seating Positions...................................... 226
Child Safety Locks............................................26Clean Air Gasoline......................................... 319CleaningWheels...................................................... 309Climate Control................................................55Automatic....................................................55Cold Weather Operation................................ 104Compact Spare Tire...................................... 307Contract, Service........................................... 325Cooling Pressure Cap (Radiator Cap)............ 282Cooling System............................................. 280Adding Coolant (Antifreeze)...................... 281Cooling Capacity....................................... 321Disposal Of Used Coolant......................... 282Drain, Flush, And Refill............................. 281Inspection................................................. 281Points To Remember................................ 283Pressure Cap............................................ 282Radiator Cap............................................. 282Selection Of Coolant (Antifreeze)......................... 281, 321, 322Corrosion Protection..................................... 313Cruise Control (Speed Control)............. 119, 121Cruise Light............................................... 97, 98Customer Assistance.................................... 324Cybersecurity................................................ 158
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334 Tilt/Telescoping Steering Column
............... 27Windows...................................................... 71Power SeatsDown.................................................... 35, 37Forward................................................ 35, 37Rearward.............................................. 35, 37Up......................................................... 35, 37Pregnant Women And Seat Belts...................209Preparation For Jacking................................. 247PretensionersSeat Belts.................................................. 209
R
Radial Ply Tires.............................................. 304Radiator Cap (Coolant Pressure Cap)............ 282Radio Operation............................................ 188Radio Remote Controls.................................. 178Rain Sensitive Wiper System........................... 54Rear Air Conditioning....................................... 60Rear Axle (Differential)................................... 285Rear Camera................................................. 139Rear Cross Path............................................. 198Rear ParkSense System................................ 130Rear Seats, Folding......................................... 31Rear Wiper/Washer......................................... 55Reclining Front Seats...................................... 30Recreational Towing...................................... 153Shifting Into Transfer CaseNeutral (N)............................................ 154
Shifting Out Of Transfer Case Neutral (N)........................................... 156Reformulated Gasoline................................. 319Refrigerant.................................................... 274Release, Hood................................................. 74Reminder, Seat Belt...................................... 205Remote ControlStarting System........................................... 18Remote Keyless Entry...................................... 14Arm The Alarm............................................. 21Disarm The Alarm........................................ 21Programming Additional Key Fobs............... 16Remote Sound System (Radio) Control......... 178Remote StartingExit Remote Start Mode.............................. 19Remote Starting System.................................. 18Replacement Bulbs...................................... 293Replacement Keys........................................... 16Replacement Tires........................................ 306Reporting Safety Defects.............................. 326Restraints, Child........................................... 223Restraints, Head.............................................. 39Retractable Cargo Area Cover.......................... 76Roll Over Warning.............................................. 9Roof Type Carrier............................................. 77Rotation, Tires.............................................. 312
S
Safety Checks Inside Vehicle........................ 239Safety Checks Outside Vehicle...................... 241Safety Defects, Reporting............................. 326Safety Information, Tire................................. 295Safety Tips.................................................... 239Safety, Exhaust Gas...................................... 241Schedule, Maintenance................................ 264Seat Belt Reminder..........................................91Seat Belts............................................ 205, 239Adjustable Shoulder Belt.......................... 208Adjustable Upper Shoulder Anchorage............................................ 208Adjustable Upper Shoulder Belt Anchorage............................................ 208Automatic Locking Retractor (ALR)........... 209Child Restraints........................................ 223Energy Management Feature................... 209Extender................................................... 209Front Seat............................... 205, 206, 207Inspection................................................. 239Lap/Shoulder Belt Operation.................... 207Lap/Shoulder Belt Untwisting................... 208Lap/Shoulder Belts................................... 206Operating Instructions.............................. 207Pregnant Women...................................... 209Pretensioners........................................... 209Rear Seat.................................................. 206Reminder.................................................. 205Seat Belt Extender.................................... 209

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