2023 FORD EXPLORER service

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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Your vehicle may not pass the I/M test ifthe service engine soon indicator is on ornot working properly (bulb is burned out),or if the OBD-II system has determinedthat some of the emission control systemshave not been properly checked. In thiscase, the vehicle is not ready for I/Mtesting.
If the vehicle’s engine or transmission hasjust been serviced, or the battery hasrecently run down or been replaced, theOBD-II system may indicate that thevehicle is not ready for I/M testing. Todetermine if the vehicle is ready for I/Mtesting, turn the ignition key to the onposition for 15 seconds without crankingthe engine. If the service engine soonindicator blinks eight times, it means thatthe vehicle is not ready for I/M testing; ifthe service engine soon indicator stays onsolid, it means that your vehicle is readyfor I/M testing.
The OBD-II system checks the emissioncontrol system during normal driving. Acomplete check may take several days.
If the vehicle is not ready for I/M testing,you can perform the following driving cycleconsisting of mixed city and highwaydriving:
1.15 minutes of steady driving on anexpressway or highway followed by 20minutes of stop-and-go driving with atleast four 30-second idle periods.
2.Allow your vehicle to sit for at leasteight hours with the ignition off. Then,start the vehicle and complete theabove driving cycle. The vehicle mustwarm up to its normal operatingtemperature. Once started, do not turnoff the vehicle until the above drivingcycle is complete.
If the vehicle is still not ready for I/Mtesting, you need to repeat the abovedriving cycle.
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2023 Explorer (CTW) Canada/United States of America, enUSA, Edition date: 202209, First-PrintingEngine Emission Control

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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2023 Explorer (CTW) Canada/United States of America, enUSA, Edition date: 202209, First-PrintingHigh Voltage Battery (If Equipped)

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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Once through water, always try the brakes.Wet brakes do not stop the vehicle aseffectively as dry brakes. Drying can beimproved by moving your vehicle slowlywhile applying light pressure on the brakepedal.
Be cautious of sudden changes in vehiclespeed or direction when you are driving inmud. Even 4WD vehicles can lose tractionin slick mud. As when you are driving oversand, apply the accelerator slowly andavoid spinning your wheels. If the vehicledoes slide, steer in the direction of the slideuntil you regain control of the vehicle.
After driving through mud, clean off residuestuck to rotating driveshafts and tires.Excess mud stuck on tires and rotatingdriveshafts causes an imbalance thatcould damage drive components.
“Tread Lightly” is an educational programdesigned to increase public awareness ofland-use regulations and responsibilitiesin our nations wilderness areas. Ford MotorCompany joins the U.S. Forest Service andthe Bureau of Land Management inencouraging you to help preserve ournational forest and other public and privatelands by “treading lightly.”
Driving on Hilly or Sloping Terrain
Although natural obstacles could make itnecessary to travel diagonally up or downa hill or steep incline, you should alwaystry to drive straight up or straight down.
Note: Avoid driving crosswise or turning onsteep slopes or hills. A danger lies in losingtraction, slipping sideways and possiblyrolling over. Whenever driving on a hill,determine beforehand the route you willuse. Do not drive over the crest of a hillwithout seeing what conditions are on theother side. Do not drive in reverse over a hillwithout the aid of an observer.
When climbing a steep slope or hill, startin a lower gear rather than downshifting toa lower gear from a higher gear once theascent has started. This reduces strain onthe engine and the possibility of stalling.
If you do stall out, do not try to turn aroundbecause you might roll over. It is better toback down to a safe location.
Apply just enough power to the wheels toclimb the hill. Too much power can causethe tires to slip, spin or lose traction,resulting in loss of vehicle control.
Descend a hill in the same gear you woulduse to climb up the hill to avoid excessivebrake application and brake overheating.Do not descend in neutral; instead,disengage overdrive or manually shift to alower gear. When descending a steep hill,avoid sudden hard braking as you couldlose control. The front wheels have to beturning in order to steer the vehicle.
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GENERAL INFORMATION
Note: Occasional brake noise is normal. Ifa metal-to-metal, continuous grinding orcontinuous squeal sound is present, thebrake linings may be worn. Have your vehiclechecked. If the vehicle has continuousvibration or shudder in the steering wheelwhile braking, have your vehicle checked.
Note: Brake dust may accumulate on thewheels, even under normal drivingconditions. Some dust is inevitable as thebrakes wear and does not contribute tobrake noise. Wet brakes result in reducedbraking efficiency. Gently press the brakepedal a few times when driving from a carwash or standing water to dry the brakes.
See Cleaning the Wheels (page 344).
Brake Over Accelerator
In the event the accelerator pedalbecomes stuck or entrapped, apply steadyand firm pressure to the brake pedal toslow the vehicle and reduce engine power.If you experience this condition, apply thebrakes and bring your vehicle to a safestop. Switch the engine off, move thetransmission to park (P) and apply theparking brake. Inspect the acceleratorpedal and the area around it for any itemsor debris that may be obstructing itsmovement. If none are found and thecondition persists, have your vehiclechecked. If your vehicle has to be towed,we recommend that you contact aprofessional towing service.
Emergency Brake Assist
Emergency brake assist detects when youbrake heavily by measuring the rate atwhich you press the brake pedal. Itprovides maximum braking efficiency aslong as you press the pedal. Emergencybrake assist can reduce stopping distancesin critical situations.
Anti-lock Brake System
This system helps you maintain steeringcontrol during emergency stops by keepingthe brakes from locking.
This lamp illuminatesmomentarily when you switchthe ignition on to confirm thelamp is functional.
If the warning lamp does not illuminateduring start up, remains on or flashes, thesystem may be disabled. Have the systemchecked. If the anti-lock brake system isdisabled, normal braking is still operational.
See Warning Lamps and Indicators(page 105).
Note:Indicators vary depending on region.
This lamp illuminatesmomentarily when you switchthe ignition on to confirm thelamp is functional. If it does notilluminate when you switch theignition on, or if it begins to flashat any time except the time during applyingor releasing the parking brake, have thesystem checked.
Regenerative Braking System
This feature simulates the engine brakingof an internal combustion engine andassist the standard brake system whilerecovering some of the energy of motionand storing it in the battery to improve fueleconomy. The standard brake system isdesigned to fully stop the car ifregenerative braking is not available.During regenerative braking, the motor isspun as a generator to create electricalcurrent. This recharges the battery andslows the vehicle. Once the acceleratorpedal is released, the motor changes froman energy user to an energy producer.
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REVERSE BRAKING ASSIST –FREQUENTLY ASKED QUESTIONS
Why is reverse braking assist unavailable?
•Make sure you switch the system on.See Switching Reverse BrakingAssist On and Off (page 217).
•Make sure that the liftgate, hood andall doors are closed.
•Make sure the cross traffic alert systemis on. See Cross Traffic Alert (page263).
•Make sure the rear parking aid systemis on. See Rear Parking Aid (page 225).
•Make sure traction control is on. SeeUsing Traction Control (page 220).
•The vehicle has sustained a rear endimpact. Have the sensors checked forproper coverage and operation.
•An ABS, traction control or stabilitycontrol event may have occurred. Thesystem resumes operation when theevent is complete.
•Make sure the rear view camera and360 degree camera are not dirty orobstructed. If it is dirty, clean thecamera. See Rear View Camera(page 234). See 360 Degree Camera(page 237). If the message still appearsafter cleaning the camera, wait a shorttime and the message should clear. Ifthe message does not clear, have thesystem checked.
•Make sure the sensors are not blockedor faulted. See Cross Traffic Alert(page 263). See Rear Parking Aid(page 225).
•You recently had your vehicle serviced,or the battery disconnected. Drive yourvehicle a short distance to resumesystem operation.
•The system does not function whenyou connect a trailer. Operationresumes when you disconnect thetrailer.
Note:If the answers to why the system isunavailable do not assist in returning reversebraking assist to available, have the systemchecked as soon as possible.
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2023 Explorer (CTW) Canada/United States of America, enUSA, Edition date: 202209, First-PrintingReverse Braking Assist (If Equipped)

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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