2023 FORD EXPLORER maintenance

•Incorrect fuel for climatic conditions.
•Incorrect engine oil viscosity forclimactic conditions.
Note:Some vehicles have a lifetime fuelfilter that is integrated with the fuel tank.Regular maintenance or replacement is notneeded.
Note:If these checks do not help youcorrect the concern, have your vehiclechecked as soon as possible.
Noise Emissions Warranty,Prohibited Tampering Acts andMaintenance
On January 1, 1978, Federal regulationbecame effective governing the noiseemission on trucks over 10,000 lb(4,536 kg) Gross Vehicle Weight Rating(GVWR). The preceding statementsconcerning prohibited tampering acts andmaintenance, and the noise warrantyfound in the Warranty Guide, areapplicable to complete chassis cabs over10,000 lb (4,536 kg) GVWR.
CATALYTIC CONVERTER
WARNING: Do not park, idle ordrive your vehicle on dry grass or otherdry ground cover. The emission systemheats up the engine compartment andexhaust system, creating the risk of fire.
WARNING: The normal operatingtemperature of the exhaust system isvery high. Never work around or attemptto repair any part of the exhaust systemuntil it has cooled. Use special care whenworking around the catalytic converter.The catalytic converter heats up to a veryhigh temperature after only a shortperiod of engine operation and stays hotafter the engine is switched off.
WARNING: Exhaust leaks mayresult in entry of harmful and potentiallylethal fumes into the passengercompartment. If you smell exhaustfumes inside your vehicle, have yourvehicle inspected immediately. Do notdrive if you smell exhaust fumes.
Your vehicle has various emission controlcomponents and a catalytic converter thatenables it to comply with applicableexhaust emission standards.
To make sure that the catalytic converterand other emission control componentscontinue to work properly:
•Do not crank the engine for more than10 seconds at a time.
•Do not run the engine with a spark pluglead disconnected.
•Do not push-start or tow-start yourvehicle. Use booster cables. See JumpStarting the Vehicle (page 293).
•Use only the specified fuel listed.
•Do not switch the ignition off when yourvehicle is moving.
•Avoid running out of fuel.
•Have the items listed in scheduledmaintenance information performedaccording to the specified schedule.
Note:Resulting component damage maynot be covered by the vehicle Warranty.
The scheduled maintenance items listedin scheduled maintenance information areessential to the life and performance ofyour vehicle and to its emissions system.
If you use anything other than Ford,Motorcraft or Ford-authorized parts formaintenance replacements or for serviceof components affecting emission control,such non-Ford parts should be equivalentto genuine Ford Motor Company parts inperformance and durability.
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Illumination of the service engine soonindicator, charging system warning light orthe temperature warning light, fluid leaks,strange odors, smoke or loss of enginepower could indicate that the emissioncontrol system is not working properly.
An improperly operating or damagedexhaust system may allow exhaust toenter the vehicle. Have a damaged orimproperly operating exhaust systeminspected and repaired immediately.
Do not make any unauthorized changes toyour vehicle or engine. By law, vehicleowners and anyone who manufactures,repairs, services, sells, leases, tradesvehicles, or supervises a fleet of vehiclesare not permitted to intentionally removean emission control device or prevent itfrom working. Information about yourvehicle’s emission system is on the VehicleEmission Control Information Decallocated on or near the engine. This decalalso lists engine displacement.
Please consult your warranty informationfor complete details.
On-Board Diagnostics (OBD-II)
Your vehicle has a computer known as theon-board diagnostics system (OBD-II) thatmonitors the engine’s emission controlsystem. The system protects theenvironment by making sure that yourvehicle continues to meet governmentemission standards. The OBD-II systemalso assists a service technician in properlyservicing your vehicle.
When the service engine soonindicator illuminates, the OBD-IIsystem has detected amalfunction. Temporary malfunctions maycause the service engine soon indicator toilluminate. Examples are:
1.Your vehicle has run out of fuel—theengine may misfire or run poorly.
2.Poor fuel quality or water in thefuel—the engine may misfire or runpoorly.
3.The fuel fill inlet may not have closedproperly. See Refueling (page 185).
4.Driving through deep water—theelectrical system may be wet.
You can correct these temporarymalfunctions by filling the fuel tank withgood quality fuel, properly closing the fuelfill inlet or letting the electrical system dryout. After three driving cycles without theseor any other temporary malfunctionspresent, the service engine soon indicatorshould stay off the next time you start theengine. A driving cycle consists of a coldengine startup followed by mixed city andhighway driving. No additional vehicleservice is required.
If the service engine soon indicator remainson, have your vehicle serviced at the firstavailable opportunity. Although somemalfunctions detected by the OBD-II maynot have symptoms that are apparent,continued driving with the service enginesoon indicator on can result in increasedemissions, lower fuel economy, reducedengine and transmission smoothness andlead to more costly repairs.
Readiness for Inspection andMaintenance (I/M) Testing
Some state and provincial and localgovernments may haveInspection/Maintenance (I/M) programsto inspect the emission control equipmenton your vehicle. Failure to pass thisinspection could prevent you from gettinga vehicle registration.
If the service engine soonindicator is on or the bulb doesnot work, your vehicle may needservice. See On-Board Diagnostics.
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GENERAL INFORMATION -
HYBRID ELECTRIC VEHICLE
(HEV)
WARNING: This battery packshould only be serviced by an authorizedelectric vehicle technician. Improperhandling can result in personal injury ordeath.
WARNING: Apply the parkingbrake, shift into park (P), switch theignition off and remove the key beforeyou open the hood or have any serviceor repair work completed. If you do notswitch the ignition off, the engine couldrestart at any time. Failure to follow thisinstruction could result in personal injuryor death.
WARNING: Do not touch theelectronic ignition system parts after youhave switched the ignition on or whenthe engine is running. The systemoperates at high voltage. Failure tofollow this instruction could result inserious personal injury or death.
WARNING: Keep your hands andclothing clear of the engine cooling fan.
Your vehicle consists of varioushigh-voltage components and wiring. Allof the high-voltage power flows throughspecific wiring assemblies labeled as suchor covered with a solid orange convolute,or orange striped tape, or both. Do notcome in contact with these components.
The high-voltage battery system is ahigh-voltage, lithium-ion battery system.The pack is located underneath the vehicle.The high voltage battery system uses anadvanced active liquid heating and coolingsystem to regulate high voltage batterytemperature and help maximize the life ofthe high voltage battery.
Note:The high-voltage battery does notrequire regular service maintenance.
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PRINCIPLE OF OPERATION
This system is a proactive system. It hasthe ability to anticipate wheel slip andtransfer torque to the front wheels beforeslip occurs. Even when wheel slip is notpresent, the system is continuouslyadjusting to the torque distribution, in anattempt to improve straight line andcornering behavior, both on and off road.
The system automatically turns on everytime you switch the ignition on.
If any component requires maintenance,a message appears in the informationdisplay.
USING FOUR-WHEEL DRIVE
WARNING: Vehicles with a highercenter of gravity (utility and four-wheeldrive vehicles) handle differently thanvehicles with a lower center of gravity(passenger cars). Avoid sharp turns,excessive speed and abrupt steering inthese vehicles. Failure to drive cautiouslyincreases the risk of losing control of yourvehicle, vehicle rollover, personal injuryand death.
The intelligent 4WD system continuouslymonitors vehicle conditions and adjuststhe power distribution between the frontand rear wheels. It combines transparentall-surface operation with highly capablefour-wheel drive.
The 4WD system is always active andrequires no driver input. It is capable ofhandling all road conditions includingstreet and highway driving as well asoff-road and winter driving. You canoptimize more 4WD control by selectingdifferent drive modes. See Selecting aDrive Mode (page 273).
Note:A warning message displays in theinformation display when a 4WD systemfault is present. See InformationMessages (page 119). A 4WD system faultcauses the 4WD system to default torear-wheel drive only mode. When thiswarning message is displayed, have yourvehicle serviced at an authorized dealer.
Note:A warning message displays in theinformation display if the 4WD systemoverheats. See Information Messages(page 119). This condition could occur if thevehicle is operated in extreme conditionswith excessive wheel slip, such as deepsand. To resume normal 4WD function assoon as possible, stop the vehicle in a safelocation and stop the engine for at least 10minutes. After the engine is restarted andthe 4WD system is adequately cooled, thewarning message turns off and normal 4WDfunction returns.
Operating Four-Wheel Drive (4WD)Vehicles With Spare Tires
Do not use a different size spare tire otherthan the tire provided. If the mini-spare tireis installed, the 4WD system will disableand enter rear-wheel drive only mode toprotect driveline components. Somelimited 4WD traction could be provided ifthe mini-spare is installed on one of thefront wheels. If you are in driving conditionswhere limited 4WD traction is neededwhile the mini-spare is installed, it isrecommended the mini-spare be installedon the front axle. See InformationMessages (page 119).
If the mini-spare is installed, this conditionis indicated by a warning in the informationdisplay. If there is a warning message inthe information display from using thespare tire, this indicator should turn offafter reinstalling or replacing the normalroad tire and cycling the ignition off andon. We recommended reinstalling or
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replacing the normal road tire as soon aspossible. Major dissimilar tire sizesbetween the front and rear axles couldcause the 4WD system to stop functioningand default to rear-wheel drive or damagethe 4WD system.
The slip response system could activate ifthe mini spare is installed on the frontwheels. If the mini spare was installed onthe rear wheels the slip response systemwill fully disable. In situations where thereis a wintery mix or an off road situation,and you need to use a mini spare, you mustinstall the mini spare in the front tireposition and move a full size tire to the reartire position for the slip response systemto function.
Operating Four-Wheel drive (4WD)Vehicles with Mismatched Tires
WARNING: Only use replacementtires and wheels that are the same size,load index, speed rating and type (suchas P-metric versus LT-metric orall-season versus all-terrain) as thoseoriginally provided by Ford. Therecommended tire and wheel size maybe found on either the SafetyCompliance Certification Label (affixedto either the door hinge pillar, door-latchpost, or the door edge that meets thedoor-latch post, next to the driver'sseating position), or the Tire Label whichis located on the B-Pillar or edge of thedriver's door. If this information is notfound on these labels, then you shouldcontact your authorized dealer as soonas possible. Use of any tire or wheel notrecommended by Ford can affect thesafety and performance of your vehicle,which could result in an increased risk ofloss of vehicle control, vehicle rollover,personal injury and death.
Major dissimilar tire sizes between the frontand rear axles (for example, 17 inch lowprofile tires on the front axle and 22 inchhigh profile tires on the rear axle) couldcause the 4WD system to stop functioningand default to rear-wheel drive or damagethe 4WD system.
For optimum 4WD Performance, it isrecommended to follow the tire rotationmaintenance schedule. To avoid potential4WD malfunction or 4WD system damage,it is recommended to replace all four tiresrather than mixing significantly worn tireswith new tires. For example, using 3 worntread tires and 1 new tread tire all of thesame original tire size/brand, can betolerated by the 4WD system as long asthe worn tires still have usable tread depth.
How Your Vehicle Differs fromOther Vehicles
Truck and utility vehicles can differ fromsome other vehicles. Your vehicle could behigher to allow it to travel over roughterrain without getting hung up ordamaging underbody components.
The differences that make your vehicle soversatile also make it handle differentlythan an ordinary passenger car.
Maintain steering wheel control at alltimes, especially in rough terrain. Sincesudden changes in terrain can result inabrupt steering wheel motion, make sureyou grip the steering wheel from theoutside. Do not grip the spokes.
Drive cautiously to avoid vehicle damagefrom concealed objects such as rocks andstumps.
You should either know the terrain orexamine maps of the area before driving.Map out your route before driving in thearea. To maintain steering and brakingcontrol of your vehicle, you must have allfour wheels on the ground and they mustbe rolling, not sliding or spinning.
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Your vehicle has anti-lock brakes, thereforeapply the brakes steadily. Do not “pump”the brakes.
Driving on Snow and Ice
WARNING: If you are driving inslippery conditions that require tirechains or cables, then it is critical thatyou drive cautiously. Keep speeds down,allow for longer stopping distances andavoid aggressive steering to reduce thechances of a loss of vehicle controlwhich can lead to serious injury or death.If the rear end of your vehicle slides whilecornering, steer in the direction of theslide until you regain control of yourvehicle.
Note:Excessive tire slippage can causedriveline damage.
4WD vehicles have advantages over 2WDvehicles in snow and ice but can skid likeany other vehicle.
Should you start to slide while driving onsnowy or icy roads, turn the steering wheelin the direction of the slide until you regaincontrol.
Avoid sudden applications of power andquick changes of direction on snow andice. Apply the accelerator slowly andsteadily when starting from a full stop.
Avoid sudden braking as well. Although a4WD vehicle could accelerate better thana two-wheel drive vehicle in snow and ice,it will not stop any faster, because as inother vehicles, braking occurs at all fourwheels. Do not become overconfident asto road conditions.
Make sure you allow sufficient distancebetween you and other vehicles forstopping. Drive slower than usual andconsider using one of the lower gears. Inemergency stopping situations, apply thebrake steadily. Since your vehicle comeswith a four wheel (ABS), do not “pump”the brakes. See Hints on Driving WithAnti-Lock Brakes (page 211).
Maintenance and Modifications
The suspension and steering systems onyour vehicle have been designed andtested to provide predictable performancewhether loaded or empty and durable loadcarrying capability. For this reason, westrongly recommend that you do not makemodifications such as adding or removingparts (such as lowering kits or stabilizerbars) or by using replacement parts notequivalent to the original factoryequipment.
Any modifications to a vehicle that raisethe center of gravity can make it more likelythe vehicle will rollover as a result of a lossof control. We strongly recommend thatcaution be used with any vehicle equippedwith a high load or device (such as ladderor luggage racks).
Failure to maintain your vehicle properlycould void the warranty, increase yourrepair cost, reduce vehicle performanceand operational capabilities and adverselyaffect driver and passenger safety.Frequent inspection of vehicle chassiscomponents is recommended if the vehicleis subjected to off-highway usage.
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STEERING
Electric Power Steering
WARNING: The electric powersteering system has diagnostic checksthat continuously monitor the system. Ifa fault is detected, a message displaysin the information display. Stop yourvehicle as soon as it is safe to do so.Switch the ignition off. After at least 10seconds, switch the ignition on andwatch the information display for asteering system warning message. If asteering system warning messagereturns, have the system checked assoon as possible.
WARNING: If the system detectsan error, you may not feel a difference inthe steering, however a serious conditionmay exist. Have your vehicle checked assoon as possible. Failure to do so mayresult in loss of steering control.
Your vehicle has an electric power steeringsystem, there is no fluid reservoir, nomaintenance is required.
If your vehicle loses electrical power whileyou are driving, electric power steeringassistance is lost. The steering system stilloperates and you can steer your vehiclemanually. Manually steering your vehiclerequires more effort.
Extreme continuous steering may increasethe effort required for you to steer yourvehicle, this increased effort preventsoverheating and permanent damage tothe steering system. You do not lose theability to steer your vehicle manually.Typical steering and driving maneuversallow the system to cool and return tonormal operation.
Steering Tips
If the steering wanders or pulls, check for:
•Correct tire pressures.
•Uneven tire wear.
•Loose or worn suspensioncomponents.
•Loose or worn steering components.
•Improper vehicle alignment.
Note:A high crown in the road or highcrosswinds may also make the steeringseem to wander or pull.
Adaptive Learning (If Equipped)
The electronic power steering systemadaptive learning helps correct roadirregularities and improves overall handlingand steering feel. It communicates withthe brake system to help operateadvanced stability control and accidentavoidance systems. Additionally, wheneverthe battery is disconnected or a newbattery installed, you must drive yourvehicle a short distance before the systemrelearns the strategy and reactivates allsystems.
PRE-COLLISION ASSIST
WARNING: You are responsible forcontrolling your vehicle at all times. Thesystem is designed to be an aid and doesnot relieve you of your responsibility todrive with due care and attention. Failureto follow this instruction could result inthe loss of control of your vehicle,personal injury or death.
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ESSENTIAL TOWING CHECKS
Follow these guidelines for safe towing:
•Do not tow a trailer until you drive yourvehicle at least 1,000 mi (1,600 km).
•Consult your local motor vehicle lawsfor towing a trailer.
•See the instructions included withtowing accessories for the properinstallation and adjustmentspecifications.
•Service your vehicle more frequently ifyou tow a trailer. See ScheduledMaintenance (page 476).
•If you use a rental trailer, follow theinstructions the rental agency givesyou.
You can find information on loadspecification terms found on the tire labeland Safety Compliance label as well asinstructions on calculating your vehicle'sload in the Load Carrying chapter. SeeLoad Limit (page 277).
Remember to account for the trailertongue weight as part of your vehicle loadwhen calculating the total vehicle weight.
Hitches
Do not use a hitch that either clamps ontothe bumper or attaches to the axle.
Distribute the trailer load so 10-15% of thetotal trailer weight is on the tongue.
A weight distributing hitch is not requiredfor your vehicle.
Safety Chains
Note:Do not attach safety chains to thebumper.
Always connect the safety chains to thehook retainers of your vehicle hitch.
To connect the trailer’s safety chains, crossthem under the trailer tongue and allowenough slack for turning tight corners. Donot allow the chains to drag on the ground.
Trailer Brakes
WARNING: Do not connect atrailer's hydraulic brake system directlyto your vehicle's brake system. Yourvehicle may not have enough brakingpower and your chances of having acollision greatly increase.
Electric brakes and manual, automatic orsurge-type trailer brakes are safe if youinstall them properly and adjust them tothe manufacturer's specifications. Thetrailer brakes must meet local and federalregulations.
The rating for the tow vehicle's brakingsystem operation is at the gross vehicleweight rating, not the gross combinedweight rating.
Safe control of towed vehicles requiresseparate functioning brake systems forvehicles and trailers weighing more than1,500 lb (680 kg) when loaded.
Trailer Lamps
WARNING: Never connect anytrailer lamp wiring to the vehicle's taillamp wiring; this may damage theelectrical system resulting in fire. Contactyour authorized dealer as soon aspossible for assistance in proper trailertow wiring installation. Additionalelectrical equipment may be required.
Most towed vehicles require trailer lamps.Make sure all running lights, brake lights,direction indicators and hazard flashersare working.
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