2021 DODGE DURANGO transmission

284SERVICING AND MAINTENANCE
AUTOMATIC TRANSMISSION
Special Additives
The manufacturer strongly recommends against
using any special additives in the transmission.
Automatic Transmission Fluid (ATF) is an
engineered product and its performance may be
impaired by supplemental additives. Therefore, do
not add any fluid additives to the transmission.
Avoid using transmission sealers as they may
adversely affect seals.
Fluid Level Check
The fluid level is preset at the factory and does not
require adjustment under normal operating
conditions. Routine fluid level checks are not
required; therefore the transmission has no
dipstick. An authorized dealer can check your
transmission fluid level using special service tools. If you notice fluid leakage or transmission
malfunction, visit an authorized dealer
immediately to have the transmission fluid level
checked. Operating the vehicle with an improper
fluid level can cause severe transmission damage.
Fluid And Filter Changes
Under normal operating conditions, the fluid
installed at the factory will provide satisfactory
lubrication for the life of the vehicle.
Routine fluid and filter changes are not required.
However, change the fluid and filter if the fluid
becomes contaminated (with water, etc.), or if the
transmission is disassembled for any reason.
To avoid contamination from foreign matter or
moisture, use only new brake fluid or fluid that
has been in a tightly closed container. Keep
the master cylinder reservoir cap secured at
all times. Brake fluid in a open container
absorbs moisture from the air resulting in a
lower boiling point. This may cause it to boil
unexpectedly during hard or prolonged
braking, resulting in sudden brake failure. This
could result in a collision.
Overfilling the brake fluid reservoir can result
in spilling brake fluid on hot engine parts,
causing the brake fluid to catch fire. Brake
fluid can also damage painted and vinyl
surfaces, care should be taken to avoid its
contact with these surfaces.
Do not allow petroleum based fluid to contam
-
inate the brake fluid. Brake seal components
could be damaged, causing partial or
complete brake failure. This could result in a
collision.
WARNING!
CAUTION!
Do not use chemical flushes in your
transmission as the chemicals can damage your
transmission components. Such damage is not
covered by the New Vehicle Limited Warranty.
CAUTION!
If a transmission fluid leak occurs, visit an
authorized dealer immediately. Severe
transmission damage may occur. An authorized
dealer has the proper tools to adjust the fluid
level accurately.

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SERVICING AND MAINTENANCE285
Selection Of Lubricant
It is important to use the proper transmission fluid
to ensure optimum transmission performance and
life. Use only the manufacturer's specified
transmission fluid Úpage 323. It is important to
maintain the transmission fluid at the correct level
using the recommended fluid.
NOTE:No chemical flushes should be used in any trans -
mission; only the approved lubricant should be
used.
FRONT/REAR AXLE FLUID
For normal service, periodic fluid level checks are
not required. When the vehicle is serviced for other
reasons the exterior surfaces of the axle assembly
should be inspected. If gear oil leakage is
suspected inspect the fluid level.
Front Axle Fluid Level Check
The front axle oil level needs to be no lower than
1/8 inch (3 mm) below the bottom of the fill hole.
The front axle fill and drain plugs should be
tightened to 22 to 29 ft lbs (30 to 40 N·m).
Rear Axle Fluid Level Check
The rear axle oil level needs to be no lower than
1/8 inch (3 mm) below the bottom of the fill hole.
The rear axle fill and drain plugs should be
tightened to 22 to 29 ft lbs (30 to 40 N·m).
Selection Of Lubricant
Use only the manufacturer's recommended fluid
Ú page 323.
TRANSFER CASE
Fluid Level Check
For normal service, periodic fluid level checks are
not required. When the vehicle is serviced for other
reasons the exterior surfaces of the transfer case
assembly should be inspected. If oil leakage is
suspected inspect the fluid level.
Adding Fluid
With the vehicle in a level position, fill the transfer
case to bottom edge of fill plug opening.
Drain
First remove fill plug, then remove drain plug.
Recommended tightening torque for drain and fill
plugs is 15 to 25 ft lbs (20 to 34 N·m).
Selection Of Lubricant
Use only the manufacturer's recommended fluid
Úpage 323.
CAUTION!
Using a transmission fluid other than the
manufacturer recommended fluid may cause
deterioration in transmission shift quality and/or
torque converter shudder Ú page 323.
CAUTION!
Do not overtighten the plugs as it could damage
them and cause them to leak.
CAUTION!
Do not overtighten the plugs as it could damage
them and cause them to leak.
CAUTION!
When installing plugs, do not overtighten. You
could damage them and cause them to leak.
8

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286SERVICING AND MAINTENANCE
(Continued)
FUSES
General Information
The fuses protect electrical systems against
excessive current.
When a device does not work, you must check the
fuse element inside the blade fuse for a break/
melt.
Also, please be aware that when using power
outlets for extended periods of time with the
engine off may result in vehicle battery discharge.
Blade Fuses

WARNING!
When replacing a blown fuse, always use an
appropriate replacement fuse with the same
amp rating as the original fuse. Never replace
a fuse with another fuse of higher amp rating.
Never replace a blown fuse with metal wires or
any other material. Do not place a fuse inside
a circuit breaker cavity or vice versa. Failure to
use proper fuses may result in serious
personal injury, fire and/or property damage.
Before replacing a fuse, make sure that the
ignition is off and that all the other services
are switched off and/or disengaged.
If the replaced fuse blows again, contact an
authorized dealer.
If a general protection fuse for safety systems
(air bag system, braking system), power unit
systems (engine system, transmission
system) or steering system blows, contact an
authorized dealer.
WARNING!
1 — Fuse Element
2 — Blade Fuse with a good/functional fuse
element
3 — Blade fuse with a bad/not functional fuse
element (blown fuse)

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290SERVICING AND MAINTENANCE
F52 ––Spare
F53 –20 Amp Yellow Trailer Tow – Left Turn/Stop Lights*
F54 ––Spare
F55 ––Spare
F56 –15 Amp Blue PCM*
F57 –20 Amp Yellow NOX Sensor*/PM Sensor*/Fuel Htr*
F58 –15 Amp Blue HID Headlamps LH*
F59 –10 Amp Red SCR Pumps Relay*
F60 –15 Amp Blue Transmission Control Module
F61 –10 Amp Red PM Sensor
F62 –10 Amp Red Air Conditioning Clutch
F63 –20 Amp Yellow Ignition Coils / Ignition Coil Capacitors / Short Runner Valve Actuator —
If Equipped (Gas) Urea Heater (Diesel)*
F64 –25 Amp Clear Fuel Injectors/PCM/ECM
F65 ––Spare
F66 –10 Amp Red Sunroof*/LRSM*/RVM/DSRC/USB Port/DTV*/WCP*
F67 –15 Amp Blue CDM/UCI Port/USB Port
F68 –20 Amp Yellow Rear Wiper Motor
F69 –15 Amp Blue Spotlight Feed*
F70 –20 Amp Yellow Fuel Pump Motor
Cavity Cartridge Fuse Micro Fuse Description
* If Equipped

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TECHNICAL SPECIFICATIONS323
CHASSIS FLUIDS AND LUBRICANTS
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission Use only Mopar® ZF 8 & 9 Speed ATF Automatic Transmission Fluid or
equivalent. Failure to use the correct fluid may affect the function or
performance of your transmission.
Transfer Case – 3.6L Engine We recommend you use Shell Automatic Transmission Fluid.
Transfer Case – 5.7L Engine We recommend you use Mopar® ATF+4 Automatic Transmission Fluid.
Axle Differential (Front-Rear) We recommend you use Mopar® GL-5 Synthetic Axle Lubricant SAE 75W-85.
Brake Master Cylinder We recommend you use Mopar® DOT 3 Brake Fluid, SAE J1703.
9

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328
INDEX
A
About Your Brakes......................................... 317Adaptive Cruise Control (ACC)
(Cruise Control).................................... 119, 121Adding Engine Coolant (Antifreeze)............... 281Adding Fuel.................................................... 140Additives, Fuel............................................... 319AdjustDown.................................................... 35, 37Forward................................................ 35, 37Rearward.............................................. 35, 37Up......................................................... 35, 37Air BagAir Bag Operation...................................... 214Air Bag Warning Light...................... 211, 214Driver Knee Air Bag................................... 218Enhanced Accident Response......... 221, 263Event Data Recorder (EDR)....................... 263Front Air Bag............................................. 214If Deployment Occurs................................ 221Knee Impact Bolsters................................ 218Maintaining Your Air Bag System.............. 222Maintenance............................................. 222Redundant Air Bag Warning Light.............212
Side Air Bags............................................ 218Transporting Pets..................................... 239Air Bag Light.................................. 91, 211, 240Air Cleaner, Engine
(Engine Air Cleaner Filter)............................. 272Air Conditioner Maintenance........................ 273Air Conditioner Refrigerant.................. 273, 274Air Conditioner System................................. 273Air ConditioningRear............................................................. 60Air Conditioning Filter.................... 63, 273, 274Air Conditioning System................................... 62Air Conditioning, Operating Tips....................... 62Air Filter........................................................ 272Air PressureTires......................................................... 303AlarmArm The System................................... 21, 22Disarm The System..................................... 21Rearm The System...................................... 22Security Alarm............................................. 94Alarm SystemSecurity Alarm............................................. 21All Wheel Drive (AWD)................................... 112
Alterations/ModificationsVehicle.........................................................10Antifreeze (Engine Coolant).................. 281, 321Disposal.................................................... 282Anti-Lock Brake System (ABS)....................... 189Anti-Lock Warning Light...................................96Assist, Hill Start............................................. 193Audio Systems (Radio).................................. 158Auto Down Power Windows..............................72Automatic Headlights.......................................50Automatic High Beams.....................................50Automatic Temperature Control (ATC)..............62Automatic Transmission....................... 101, 108Adding Fluid.............................................. 284Fluid And Filter Change............................. 284Fluid Change............................................. 284Fluid Level Check...................................... 284Fluid Type........................................ 285, 323Special Additives...................................... 284Automatic Transmission Limp
Home Mode.................................................. 111Auxiliary Driving Systems.............................. 195Auxiliary Electrical Outlet (Power Outlet)..........68Auxiliary Power Outlet......................................68Axle Fluid....................................................... 323

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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
11

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332 J
Jack Location
................................................. 248Jack Operation............................................... 251Jacking And Tire Changing Instructions......... 247Jacking Instructions....................................... 251Jump Starting................................................ 255
K
Key Fob........................................................... 14Arm The System.......................................... 21Disarm The System..................................... 21Programming Additional Key Fobs.............. 16Key Fob Battery Service
(Remote Keyless Entry)................................... 15Key Fob Programming
(Remote Keyless Entry)................................... 16Keyless Enter 'n Go™ Passive Entry............................................... 23Passive Entry Programming......................... 23Keys................................................................. 14Replacement............................................... 16Sentry (Immobilizer).................................... 16
L
Lane Change Assist......................................... 51LaneSense.................................................... 136Lap/Shoulder Belts....................................... 206Latches.......................................................... 241Hood........................................................... 74Lead Free Gasoline........................................ 318
Leaks, Fluid.................................................. 241Life Of Tires................................................... 305Liftgate............................................................ 75Liftgate Window Wiper/Washer....................... 55Light Bulbs.................................................... 241Lights............................................................ 241Adaptive Cruise Control............................... 97Air Bag...................................... 91, 211, 240All Wheel Drive............................................ 97Automatic Headlights.................................. 50Brake Assist Warning............................... 193Brake Warning............................................. 91Bulb Replacement........................... 293, 294Cargo........................................................... 76Center Mounted Stop............................... 295Cruise................................................... 97, 98Daytime Running......................................... 49Dimmer Switch, Headlight........................... 48Electric Power Steering Fault....................... 92Electronic Stability Control........................... 94Electronic Stability Program(ESP)Indicator.................................................. 93Exterior...............................................48, 241Fog.....................................................97, 294Forward Collision Warning........................... 97Hazard Warning Flasher........................... 243Headlights On With Wipers.......................... 50High Beam................................................... 98High Beam/Low Beam Select...................... 49Hood Open.................................................. 93
Interior.........................................................52LaneSense............................................ 97, 98Lights On Reminder.....................................51Low Fuel......................................................96Low Washer Fluid........................................95Malfunction Indicator (Check Engine)..........94NEUTRAL.....................................................97Oil Temperature...........................................93Park......................................................50, 97Passing........................................................50Reading.......................................................52Rear Servicing.......................................... 294Rear Tail Lamps........................................ 294Seat Belt Reminder.....................................91Security Alarm.............................................94Service............................................. 293, 294Service Adaptive Cruise Control...................96Service AWD................................................96Service Forward Collision Warning...............96Service Stop Start System...........................96Side Marker.............................................. 294Snow Mode..................................................97Sport Mode..................................................98Stop Start Active..........................................98Tow Mode....................................................98Traction Control........................................ 193Trailer Brake Disconnected.........................93Transmission Temperature..........................93Turn Signals....................... 48, 98, 241, 294Vanity Mirror................................................43

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