2023 DODGE DURANGO check oil

SERVICING AND MAINTENANCE255
CHECKING OIL LEVEL
To ensure proper engine lubrication, the engine oil
must be maintained at the correct level. Check the
oil level at regular intervals, such as every fuel
stop. The best time to check the engine oil level is
about five minutes after a fully warmed up engine
is shut off.
Checking the oil while the vehicle is on level ground
will improve the accuracy of the oil level readings.
There are four possible dipstick types:
Crosshatched zone.
Crosshatched zone marked SAFE.
Crosshatched zone marked with MIN at the low
end of the range and MAX at the high end of the
range.
Crosshatched zone marked with dimples at the
MIN and the MAX ends of the range.
NOTE:Always maintain the oil level within the crosshatch
markings on the dipstick.
Adding 1 qt (1.0 L) of oil when the reading is at the
low end of the dipstick range will raise the oil level
to the high end of the range marking.
ADDING WASHER FLUID
The instrument cluster display will indicate when
the washer fluid level is low. When the sensor
detects a low fluid level, the Low Washer Fluid
Warning Light will illuminate and the "Washer Fluid
Low" message will display.
The fluid reservoir for the windshield washers and
the rear window washer is shared. The fluid
reservoir is located in the engine compartment, be
sure to check the fluid level at regular intervals. Fill
the reservoir with windshield washer solvent only
(not radiator antifreeze). When refilling the washer
fluid reservoir, take some washer fluid and apply it
to a cloth or towel and wipe clean the wiper blades,
this will help blade performance. To prevent
freeze-up of your windshield washer system in cold
weather, select a solution or mixture that meets or
exceeds the temperature range of your climate.
This rating information can be found on most
washer fluid containers.MAINTENANCE-FREE BATTERY
Your vehicle is equipped with a maintenance-free
battery. Water will never have to be added, and
periodic maintenance is not required.
CAUTION!
Overfilling or underfilling the crankcase will
cause aeration or loss of oil pressure. This could
damage your engine.
WARNING!
Commercially available windshield washer
solvents are flammable. They could ignite and
burn you. Care must be exercised when filling or
working around the washer solution.
WARNING!
Battery fluid is a corrosive acid solution and
can burn or even blind you. Do not allow
battery fluid to contact your eyes, skin, or
clothing. Do not lean over a battery when
attaching clamps Úpage 239. If acid
splashes in eyes or on skin, flush the area
immediately with large amounts of water.

Battery gas is flammable and explosive. Keep
flame or sparks away from the battery. Do not
use a booster battery or any other booster
source with an output greater than 12 Volts. Do
not allow cable clamps to touch each other.

Battery posts, terminals, and related accesso -
ries contain lead and lead compounds. Wash
hands after handling.
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23_WD_OM_EN_USC_t.book Page 255

258SERVICING AND MAINTENANCE
2. Lift the engine air cleaner filter cover to access the engine air cleaner filter.
3. Remove the engine air cleaner filter from the housing assembly.

Engine Air Cleaner Filter Assembly

Engine Air Cleaner Filter Installation
NOTE:Inspect and clean the housing if significant dirt or
debris is present before replacing the engine air
cleaner filter.

1. Install the engine air cleaner filter into the housing assembly with the engine air cleaner
filter inspection surface facing downward.

2. Install the engine air cleaner filter cover onto the housing assembly locating tabs. 3. Latch the spring clips and lock the engine air
cleaner filter cover to the housing assembly.
AIR CONDITIONER MAINTENANCE
For best possible performance, your air conditioner
should be checked and serviced by an authorized
dealer at the start of each warm season. This
service should include cleaning of the condenser
fins and a performance test. Drive belt tension
should also be checked at this time.
Refrigerant Recovery And Recycling
R-134a — If Equipped
R-134a Air Conditioning Refrigerant is a Hydrofluo -
rocarbon (HFC) that is an ozone-friendly
substance. The manufacturer recommends that
air conditioning service be performed by an
authorized dealer or other service facilities using
recovery and recycling equipment.
NOTE:Use only the manufacturer approved A/C system
PAG compressor oil and refrigerants.
1 — Engine Air Cleaner Filter Cover
2 — Engine Air Cleaner Filter
WARNING!
Use only refrigerants and compressor lubri
-
cants approved by the manufacturer for your
air conditioning system. Some unapproved
refrigerants are flammable and can explode,
injuring you. Other unapproved refrigerants or
lubricants can cause the system to fail,
requiring costly repairs. Refer to Warranty
Information Book, for further warranty infor -
mation.
The air conditioning system contains refrig -
erant under high pressure. To avoid risk of
personal injury or damage to the system,
adding refrigerant or any repair requiring lines
to be disconnected should be done by an
experienced technician.
CAUTION!
Do not use chemical flushes in your air
conditioning system as the chemicals can
damage your air conditioning components. Such
damage is not covered by the New Vehicle
Limited Warranty.

23_WD_OM_EN_USC_t.book Page 258

268SERVICING AND MAINTENANCE
(Continued)
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 250.
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 307.
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 the manufacturer’s recommended
brake fluid Úpage 307. 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.
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 an 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!

23_WD_OM_EN_USC_t.book Page 268

SERVICING AND MAINTENANCE269
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.
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 307. 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).
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.
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 307.
CAUTION!
Do not overtighten the plugs as it could damage
them and cause them to leak.
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270SERVICING AND MAINTENANCE
(Continued)
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
Úpage 307.
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 307.
FUSES
General Information
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.
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.
The use of a fuse with a rating other than indi -
cated may result in a dangerous electrical
system overload. If a properly rated fuse
continues to blow, it indicates a problem in the
circuit that must be corrected. Never replace a
blown fuse with metal wires or any other mate -
rial. 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.

23_WD_OM_EN_USC_t.book Page 270

314 Blind Spot Monitoring
.................................... 183Body Mechanism Lubrication........................ 261B-Pillar Location............................................. 286Brake Assist System...................................... 178Brake Control System, Electronic.................. 178Brake Fluid.......................................... 268, 307Brake System...................................... 268, 302Anti-Lock (ABS).......................................... 302Fluid Check............................................... 268Master Cylinder......................................... 268Parking...................................................... 102Warning Light.............................................. 88Brake/Transmission Interlock....................... 104Bulb Replacement............................... 278, 280Bulbs, Light.................................................... 227
C
Camera, Rear................................................ 134Capacities, Fluid............................................ 306Caps, Filler Oil (Engine)................................................ 253Radiator (Coolant Pressure)...................... 267Car Washes................................................... 299Carbon Monoxide Warning............................ 228Cargo Area Cover............................................. 73Cargo Compartment........................................ 73Light............................................................ 73Luggage Carrier........................................... 74Cargo Light...................................................... 73Cargo Tie-Downs.............................................. 74
Cellular Phone.............................................. 176Center High Mounted Stop Light................... 280Certification Label......................................... 136Chains, Tire................................................... 296Chart, Tire Sizing........................................... 282Check Engine Light
(Malfunction Indicator Light)............................ 96Checking Your Vehicle For Safety................. 225Checks, Safety.............................................. 225Child Restraint.............................................. 210Child RestraintsBooster Seats........................................... 213Child Seat Installation.............................. 222How To Stow An unused ALR Seat Belt.... 220Infant And Child Restraints....................... 212Locating The LATCH Anchorages.............. 217Lower Anchors And Tethers For Children.. 214Older Children And Child Restraints......... 212Seating Positions...................................... 214Child Safety Locks........................................... 25Clean Air Gasoline......................................... 304CleaningWheels..................................................... 295Climate Control................................................ 53Automatic.................................................... 53Cold Weather Operation............................... 101Compact Spare Tire...................................... 293Contract, Service.......................................... 310Cooling Pressure Cap (Radiator Cap)............ 267
Cooling System............................................. 265Adding Coolant (Antifreeze)...................... 266Cooling Capacity....................................... 306Disposal Of Used Coolant......................... 267Drain, Flush, And Refill............................. 266Inspection................................................. 266Points To Remember................................ 267Pressure Cap............................................ 267Radiator Cap............................................. 267Selection Of Coolant(Antifreeze)......................... 266, 306, 307Corrosion Protection..................................... 299Cruise Control (Speed Control)............. 115, 117Cruise Light............................................... 94, 95Customer Assistance.................................... 308Cybersecurity................................................ 153
D
Daytime Running Lights...................................46Defroster, Windshield................................... 226De-Icer, Remote Start......................................20Diagnostic System, Onboard............................96DipsticksOil (Engine)............................................... 255Disabled Vehicle Towing............................... 246DisposalAntifreeze (Engine Coolant)...................... 267Door Ajar...................................................89, 90Door Ajar Light..........................................89, 90

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315
Door Locks
............................................... 21, 25Child-Protection Door Lock — Rear Doors.... 25Doors............................................................... 21Driver’s Seat Back Tilt..................................... 28Driving........................................................... 150
E
Economy (Fuel) Mode.................................... 104Electric Brake Control System....................... 178Anti-Lock Brake System............................. 177Electronic Roll Mitigation................. 179, 182Electric Remote Mirrors................................... 41Electrical Outlet, Auxiliary (Power Outlet)......... 65Electronic Speed Control (Cruise Control)...... 116Electronic Stability Control (ESC)...................180Electronic Throttle Control Warning Light........ 89Electronically Shifted Transfer Case.... 108, 109Emergency Gas Can Refueling...................... 242Emergency, In Case Of Freeing Vehicle When Stuck...................... 245Hazard Warning Flasher............................ 229Jacking...................................................... 232Jump Starting............................................ 239Emission Control System Maintenance........... 96
Engine........................................................... 253Air Cleaner................................................ 257Break-In Recommendations..................... 101Checking Oil Level.................................... 255Compartment.................................. 253, 254Compartment Identification............. 253, 254Cooling..................................................... 265Exhaust Gas Caution................................ 228Fails To Start............................................ 101Flooded, Starting...................................... 101Fuel Requirements.......................... 303, 306Jump Starting........................................... 239Oil.................................................... 256, 306Oil Filler Cap............................................. 253Oil Filter.................................................... 257Oil Selection........................... 256, 306, 307Oil Synthetic............................................. 257Starting........................................................ 98Engine Oil Life Reset
b
.................................. 82
Enhanced Accident Response Feature...209, 248
Ethanol......................................................... 304Exhaust Gas Cautions................................... 228Exhaust System................................... 228, 264Exterior Lights............................... 45, 227, 278
F
FiltersAir Cleaner
................................................ 257Air Conditioning........................ 60, 257, 259Engine Oil................................................. 257Engine Oil Disposal................................... 257Flashers........................................................ 229Hazard Warning........................................ 229Turn Signals.............................. 95, 227, 280Flash-To-Pass...................................................47Flooded Engine Starting................................ 101Fluid Capacities............................................ 306Fluid Leaks.................................................... 228Fluid Level ChecksBrake........................................................ 268Engine Oil................................................. 255Fluids And Lubricants.................................... 307Fog Lights..................................................... 280Fog Lights, Service........................................ 280Fold-Flat Seats.................................................28Folding Rear Seats...........................................30Forward Collision Warning............................ 186Four-Way Hazard Flasher.............................. 229Freeing A Stuck Vehicle................................. 245Front Axle (Differential)................................. 269
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317
K
Key Fob
........................................................... 13Arm The System.......................................... 20Disarm The System..................................... 20Programming Additional Key Fobs.............. 15Key Fob Battery Service
(Remote Keyless Entry)................................... 14
Key Fob Programming (Remote Keyless Entry).. 15
Keyless Enter 'n Go™ Passive Entry............................................... 22Passive Entry Programming......................... 22Keys................................................................. 13Replacement............................................... 15Sentry (Immobilizer).................................... 16
L
Lane Change Assist......................................... 48LaneSense.................................................... 131Lap/Shoulder Belts....................................... 193Latches.......................................................... 227Hood........................................................... 71Lead Free Gasoline........................................ 303Leaks, Fluid................................................... 228Life Of Tires................................................... 291Liftgate............................................................ 72Liftgate Window Wiper/Washer....................... 53Light Bulbs..................................................... 227
Lights............................................................ 227Air Bag...................................... 88, 199, 226Automatic Headlights.................................. 47AWD............................................................. 94Brake Assist Warning............................... 181Brake Warning............................................. 88Bulb Replacement........................... 278, 280Cargo........................................................... 73Center Mounted Stop............................... 280Cruise............................................ 93, 94, 95Daytime Running......................................... 46Dimmer Switch, Headlight........................... 45Electric Power Steering................................ 89Electronic Stability Control........................... 91
Electronic Stability Program(ESP) Indicator... 90
Exterior...............................................45, 227Fog.....................................................94, 280Forward Collision Warning.................... 92, 94Hazard Warning Flasher........................... 229Headlights On With Wipers.......................... 47High Beam................................................... 95High Beam/Low Beam Select...................... 46Hood Open.................................................. 90Interior......................................................... 49LaneSense.................................... 92, 94, 95Lights On Reminder..................................... 48Low Fuel...................................................... 92Malfunction Indicator (Check Engine).......... 92
NEUTRAL.....................................................94Oil Temperature...........................................90Park......................................................47, 94Passing........................................................47Reading.......................................................49Rear Servicing.......................................... 280Rear Tail Lamps........................................ 280Seat Belt Reminder.....................................88Security Alarm.............................................91Service............................................. 278, 280Service AWD................................................93Side Marker.............................................. 280Sport Mode..................................................95Stop Start.............................................93, 95Traction Control........................................ 181Trailer Brake Disconnected.........................90Transmission Temperature..........................90Turn Signals....................... 45, 95, 227, 280Vanity Mirror................................................40Warning Instrument Cluster Descriptions....90Load Shed Battery Saver Mode........................87Load Shed Battery Saver On............................87Load Shed Electrical Load Reduction..............87Load Shed Intelligent Battery Sensor...............87Loading Vehicle............................................. 136Tires.......................................................... 286
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