2020 DODGE DURANGO check engine light

SERVICING AND MAINTENANCE307
(Continued)
CHECKING OIL LEVEL
To ensure proper lubrication of your vehicle's
engine, 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. Always maintain the oil level within
the SAFE zone on the dipstick. Adding one quart
of oil when the reading is at the bottom of the
SAFE zone will result in a reading at the top of
the safe zone on these engines.
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 windshield
will light on the vehicle graphic outline and the
“WASHER FLUID LOW” message will be
displayed.
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, nor is periodic maintenance
required.
CAUTION!
Overfilling or underfilling will cause oil
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. If acid splashes in eyes
or on skin, flush the area immediately with
large amounts of water. Refer to “Jump
Starting Procedure” in “In Case Of Emer -
gency” for further information.
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SERVICING AND MAINTENANCE325
(Continued)
BRAKE SYSTEM
In order to ensure brake system performance,
all brake system components should be
inspected periodically. Refer to the
“Maintenance Plan” in this section for the
proper maintenance intervals.
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.
Refer to “Fluids And Lubricants” in “Technical
Specifications” for further information.
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's recommended
brake fluid. Refer to “Fluids And Lubri
-
cants” in “Technical Specifications” for
further information. 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 reser -
voir 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
contaminate the brake fluid. Brake seal
components could be damaged, causing
partial or complete brake failure. This could
result in a collision.
WARNING! (Continued)
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TECHNICAL SPECIFICATIONS351
**Use only authorized dealer recommended
lug nuts/bolts and clean or remove any dirt or
oil before tightening.
Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion or
loose particles.

Wheel Mounting Surface

Tighten the lug nuts/bolts in a star pattern until
each nut/bolt has been tightened twice. Ensure
that the socket is fully engaged on the lug nut/
bolt (do not insert it half way).
NOTE:
If in doubt about the correct tightness, have
them checked with a torque wrench by an
authorized dealer or service station. After 25 miles (40 km), check the lug nut/bolt
torque to be sure that all the lug nuts/bolts are
properly seated against the wheel.

Torque Patterns

FUEL REQUIREMENTS
3.6L ENGINE
Do not use E-85 flex fuel or ethanol blends
greater than 15% in this engine. This engine is designed to meet all
emissions regulations and provide
optimum fuel economy and
performance when using high quality
unleaded “Regular” gasoline having a posted
octane number of 87 as specified by the
(R+M)/2 method. The use of higher octane
“Premium” gasoline is not required, as it will not
provide any benefit over “Regular” gasoline in
these engines.
While operating on gasoline with an octane
number of 87, hearing a light knocking sound
from the engine is not a cause for concern.
However, if the engine is heard making a heavy
knocking sound, see an dealer immediately.
Use of gasoline with an octane number lower
than 87 can cause engine failure and may void
or not be covered by the New Vehicle Limited
Warranty.
Poor quality gasoline can cause problems such
as hard starting, stalling, and hesitations. If you
experience these symptoms, try another brand
of gasoline before considering service for the
vehicle.
WARNING!
To avoid the risk of forcing the vehicle off the
jack, do not tighten the lug nuts/bolts fully
until the vehicle has been lowered. Failure to
follow this warning may result in personal
injury.
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448
INDEX
A
About Your Brakes......................................... 350Adaptive Cruise Control (ACC)
(Cruise Control).............................................. 208Adding Engine Coolant (Antifreeze)............... 322Adding Fuel.................................................... 238Additives, Fuel............................................... 352Adjust
Down.................................................... 38, 39Forward................................................ 38, 39Rearward.............................................. 38, 39Up......................................................... 38, 39Air BagAir Bag Operation...................................... 156Air Bag Warning Light................................ 153Driver Knee Air Bag................................... 157Enhanced Accident Response......... 161, 293Event Data Recorder (EDR)....................... 293If Deployment Occurs................................ 160Knee Impact Bolsters................................ 156Maintaining Your Air Bag System.............. 161Maintenance............................................. 161Redundant Air Bag Warning Light.............154Side Air Bags............................................. 157Transporting Pets...................................... 180Air Bag Light............................... 110, 153, 181
Air Cleaner, Engine (Engine Air Cleaner
Filter)............................................................ 311Air Conditioner Maintenance........................ 313Air Conditioner Refrigerant........................... 313Air Conditioner System................................. 313Air Conditioning................................................ 68Rear............................................................. 66Air Conditioning Filter.................... 70, 311, 314Air Conditioning System................................... 69Air Conditioning, Operating Tips....................... 69Air Filter........................................................ 311Air PressureTires......................................................... 336AlarmArm The System................................... 23, 24Disarm The System..................................... 24Rearm The System...................................... 24Security Alarm.......................................... 113Alarm SystemSecurity Alarm............................................. 23All Wheel Drive (AWD)................................... 199Alterations/ModificationsVehicle......................................................... 11Android Auto................................................. 442Antifreeze (Engine Coolant)........ 322, 355, 356Disposal................................................... 323
Anti-Lock Brake System (ABS)....................... 122Anti-Lock Warning Light................................ 116Apple CarPlay................................................ 442Arming SystemSecurity Alarm.............................................23Assist, Hill Start............................................. 128Audio Settings............................................... 402Audio Systems (Radio).................................. 361Auto Down Power Windows..............................71Automatic Headlights.......................................52Automatic High Beams.....................................51Automatic Temperature Control (ATC)..............69Automatic Transmission....................... 184, 193Adding Fluid..................................... 326, 360Fluid And Filter Change............................. 326Fluid Change............................................. 326Fluid Level Check...................................... 326Fluid Type............................... 326, 358, 360Special Additives...................................... 326Automatic Transmission Limp Home Mode... 197Aux Mode...................................................... 405Auxiliary Driving Systems.............................. 131Auxiliary Electrical Outlet (Power Outlet)..........87Auxiliary Power Outlet......................................87Axle Fluid....................................................... 358Axle Lubrication............................................ 360

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449
B
Battery
................................................. 111, 307Charging System Light............................... 111Keyless Key Fob Replacement.................... 15Battery Saver Feature...................................... 53Belts, Seat..................................................... 181Blind Spot Monitoring.................................... 131Bluetooth Connect Or Disconnect Link Betweenthe Uconnect Phone And Mobile
Phone
................................................... 422Connecting To A Particular Mobile Phone Or Audio Device After Pairing..... 417Bluetooth Mode............................................. 406Body Mechanism Lubrication........................ 316B-Pillar Location............................................. 332Brake Assist System...................................... 123Brake Control System, Electronic.................. 123Brake Fluid................................. 325, 358, 360Brake System...................................... 325, 350Anti-Lock (ABS).......................................... 350Fluid Check..................................... 325, 360Master Cylinder......................................... 325Parking...................................................... 190Warning Light............................................ 110Brake/Transmission Interlock....................... 192Bulb Replacement............................... 266, 268Bulbs, Light.................................................... 183
C
Camera, Rear................................................ 237Capacities, Fluid.................................. 355, 356Caps, FillerOil (Engine)............................. 304, 309, 310Radiator (Coolant Pressure)..................... 323Car Washes................................................... 347Carbon Monoxide Warning................... 180, 354Cargo Area Cover............................................. 77Cargo Compartment........................................ 77Light............................................................ 77Luggage Carrier........................................... 90Cargo Light....................................................... 77Cargo Tie-Downs.............................................. 78Cellular Phone.............................................. 436Center High Mounted Stop Light................... 269Chains, Tire.......................................... 343, 344Changing A Flat Tire...................................... 327Chart, Tire Sizing........................................... 329Check Engine Light
(Malfunction Indicator Light)......................... 121Checking Your Vehicle For Safety................. 180Checks, Safety.............................................. 180Child Restraint.............................................. 163Child RestraintsBooster Seats........................................... 166Child Seat Installation.............................. 177
How To Stow An unused ALR Seat Belt..... 174Infant And Child Restraints....................... 164Locating The LATCH Anchorages.............. 171Lower Anchors And Tethers For Children................................................ 167Older Children And Child Restraints.......... 165Seating Positions...................................... 166Child Safety Locks............................................29Clean Air Gasoline......................................... 352CleaningWheels...................................................... 342Climate Control................................................58Automatic....................................................58Cold Weather Operation................................ 188Compact Spare Tire...................................... 341Contract, Service........................................... 445Cooling Pressure Cap (Radiator Cap)............ 323Cooling System............................................. 321Adding Coolant (Antifreeze)...................... 322Coolant Level................................... 323, 324Cooling Capacity.............................. 355, 356Disposal Of Used Coolant......................... 323Drain, Flush, And Refill............................. 321Inspection............................... 321, 323, 324Points To Remember................................ 324Pressure Cap............................................ 323
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451
Fluid Capacities
................................... 355, 356Fluid Leaks.................................................... 183Fluid Level Checks Brake........................................................ 325Fluid, Brake................................................... 360Fluids And Lubricants................. 357, 358, 359Fog Lights...................................................... 269Fog Lights, Service......................................... 269Fold-Flat Seats................................................. 32Folding Rear Seats.......................................... 34Forward Collision Warning............................. 136Four-Way Hazard Flasher............................... 261Freeing A Stuck Vehicle................................. 289Front Axle (Differential).................................. 327Fuel............................................................... 351Additives................................................... 352Clean Air.................................................... 352Economy Mode.......................................... 192Ethanol...................................................... 353Gasoline.................................................... 351Materials Added........................................ 352Methanol................................................... 353Octane Rating................................. 351, 359Requirements................................. 351, 355Specifications.................................. 357, 359Tank Capacity.................................. 355, 356Fueling........................................................... 238Fuses............................................................. 269
G
Garage Door Opener (HomeLink)..................... 78Gasoline, (Fuel)............................................. 351Gasoline, Clean Air........................................ 352Gasoline, Reformulated................................ 352Gear Ranges................................................. 194Glass Cleaning.............................................. 349Gross Axle Weight Rating.............................. 242Gross Vehicle Weight Rating......................... 241GVWR............................................................ 240
H
Hazard Warning Flashers.............................. 261Head Restraints............................................... 42Headlights.................................................... 268Automatic.................................................... 52Bulb Replacement.................................... 268Cleaning................................................... 346High Beam/Low Beam Select Switch.......... 51Lights On Reminder..................................... 52On With Wipers............................................ 52Passing........................................................ 52Replacing................................................. 268Heated Mirrors................................................. 49Heated Seats................................................... 40Heated Steering Wheel.................................... 47Heater, Engine Block.................................... 188Hill Start Assist.............................................. 128
HitchesTrailer Towing........................................... 243Holder, Cup......................................................86HomeLink (Garage Door Opener).....................78Hood Prop........................................................75Hood Release...................................................75
I
Ignition.............................................................17Key Fob Battery Low Or Dead......................17Key Fob Not Detected..................................17Keyless Ignition...........................................17Keyless Push Button....................................17Push Button Ignition....................................17Switch..........................................................17Immobilizer (Sentry Key)..................................21In Vehicle HelpVehicle User Guide......................................12Inside Rearview Mirror.................... 47, 48, 261Instrument Cluster...................... 95, 96, 97, 98Descriptions.............................................. 118Display.........................................................99Menu Items.............................................. 103Instrument Panel Lens Cleaning................... 348Integrated Trailer Brake Control.................... 249Interior And Instrument Lights.........................54Interior Appearance Care.............................. 348Interior Lights...................................................5411

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452
Intermittent Wipers (Delay Wipers)
.................. 56Introduction....................................................... 9Inverter Power.......................................................... 90iPod/USB/MP3 Control....................... 404, 424
J
Jack Location................................................. 276Jack Operation..................................... 279, 327Jacking And Tire Changing Instructions......... 279Jacking Instructions....................................... 279Jump Starting................................................ 283
K
Key Fob........................................................... 13Arm The System.......................................... 23Disarm The System..................................... 24Programming Additional Key Fobs....... 16, 22Key Fob Battery Service (Remote
Keyless Entry).................................................. 15Key Fob Programming (Remote
Keyless Entry).................................................. 16Key-In Reminder.............................................. 18Keyless Enter-N-Go........................................ 184Passive Entry............................................... 26Passive Entry Programming................ 26, 370Keys................................................................. 13Replacement........................................ 16, 22Sentry (Immobilizer).................................... 21
L
Lane Change Assist......................................... 53LaneSense.................................................... 234Lap/Shoulder Belts....................................... 145Latches......................................................... 183Hood............................................................ 75Lead Free Gasoline....................................... 351Leaks, Fluid.................................................. 183Life Of Tires................................................... 338Liftgate............................................................ 75Liftgate Window Wiper/Washer....................... 58Light Bulbs.................................................... 183Lights............................................................ 183Air Bag.................................... 110, 153, 181Automatic Headlights.................................. 52Brake Assist Warning............................... 127Brake Warning.......................................... 110Bulb Replacement........................... 266, 268Cargo........................................................... 77Center Mounted Stop............................... 269Cruise.............................................. 117, 119Daytime Running......................................... 51Dimmer Switch, Headlight........................... 50Electronic Stability Program(ESP) Indicator............................................... 112Exterior...............................................50, 183Fog........................................................... 269Hazard Warning Flasher........................... 261
Headlights................................................ 268Headlights On With Wipers..........................52High Beam/Low Beam Select......................51Interior.........................................................54Lights On Reminder.....................................52Malfunction Indicator (Check Engine)....... 113Park................................................... 52, 118Passing........................................................52Reading.......................................................54Rear Servicing.......................................... 269Rear Tail Lamps........................................ 269Seat Belt Reminder.................................. 110Security Alarm.......................................... 113Service............................................. 266, 268Side Marker.............................................. 269Traction Control........................................ 127Turn Signals..................... 50, 118, 183, 269Vanity Mirror................................................50Warning Instrument ClusterDescriptions................................ 112, 118Load Shed Battery Saver Mode..................... 108Load Shed Battery Saver On......................... 108Load Shed Electrical Load Reduction........... 108Load Shed Intelligent Battery Sensor............ 108Loading Vehicle............................................. 240Tires.......................................................... 332

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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
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