2023 FORD EXPLORER battery

Protected ComponentFuse RatingFuse or RelayNumber
USB smart charger 2.5A139
Traffic cam.5A142
Battery electronic control module.15A146
Left-hand headlamp module.30A148
Right-hand headlamp module.30A149
Not used (spare).40A150
Transmission control module (hybridelectric vehicle).25A155
DC/DC converter (hybrid electric vehicle).15A159
Not used (spare).10A160
Low voltage service disconnect.20A168
Coolant pump (hybrid electric vehicle).10A169
Traction battery coolant pump (hybridelectric vehicle).10A170
Pedestrian sounder (hybrid electricvehicle).
Not used (spare).10A177
Note: Spare fuse amperage may vary.
Passenger Compartment FusePanel
The fuse panel is under the instrumentpanel to the left of the steering column.
Note:It may be easier to access the fusepanel if you remove the finish trim piece.
310
2023 Explorer (CTW) Canada/United States of America, enUSA, Edition date: 202209, First-PrintingFuses

GENERAL INFORMATION
Have your vehicle serviced regularly to helpmaintain its roadworthiness and resalevalue. There is a large network ofauthorized dealers that are there to helpyou with their professional servicingexpertise. We believe that their speciallytrained technicians are best qualified toservice your vehicle properly and expertly.They are supported by a wide range ofhighly specialized tools developedspecifically for servicing your vehicle.
If your vehicle requires professional service,an authorized dealer can provide thenecessary parts and service. Check yourwarranty information to find out whichparts and services are covered.
Use only recommended fuels, lubricants,fluids and service parts conforming tospecifications. Motorcraft® parts aredesigned and built to provide the bestperformance in your vehicle.
Precautions
•Do not work on a hot engine.
•Make sure that nothing gets caught inmoving parts.
•Do not work on a vehicle with theengine running in an enclosed space,unless you are sure you have enoughventilation.
•Keep all open flames and other burningmaterial (such as cigarettes) awayfrom the battery and all fuel relatedparts.
Working with the Engine Off
1.Set the parking brake and shift thetransmission to park (P).
2.Switch off the engine.
3.Block the wheels.
Working with the Engine On
WARNING: To reduce the risk ofvehicle damage and personal burninjuries, do not start your engine with theair cleaner removed and do not removeit while the engine is running.
1.Set the parking brake and shift thetransmission to park (P).
2.Block the wheels.
OPENING AND CLOSING THE
HOOD
Opening the Hood
1.Open the left-hand front door.
2.Fully pull the hood release lever andlet it completely retract.
Note:This action releases the hood latch.
3.Fully pull the hood release lever for asecond time.
Note:This action fully releases the hood.
4.Open the hood.
Note:There is no secondary latch under thehood.
315
2023 Explorer (CTW) Canada/United States of America, enUSA, Edition date: 202209, First-PrintingMaintenanceE263274

5.Support the hood with the prop rod.
Closing the Hood
WARNING: Make sure that you fullylatch the hood before driving. Failure tofollow this instruction could result inpersonal injury or death.
1.Remove the prop rod from the catchand secure it correctly in the clip.
2.Lower the hood and allow it to dropunder its own weight for the last10–14 in (25–35 cm).
Note:Make sure that the hood is correctlyclosed.
UNDER HOOD OVERVIEW - 2.3L ECOBOOST™
Battery. See Changing the 12V Battery (page 329).A
Engine oil filler cap. See Engine Oil Check (page 319).B
316
2023 Explorer (CTW) Canada/United States of America, enUSA, Edition date: 202209, First-PrintingMaintenanceE318379 E357684

Engine oil dipstick. See Engine Oil Dipstick (page 319).C
Brake fluid reservoir. See Brake Fluid Check (page 328).D
Engine compartment fuse box. See Changing a Fuse (page 313).E
Engine coolant reservoir. See Engine Coolant Check (page 324).F
Air filter assembly. See Changing the Engine Air Filter (page 321).G
Windshield washer fluid reservoir. See Washer Fluid Check (page 336).H
UNDER HOOD OVERVIEW - 3.0L
Battery. See Changing the 12V Battery (page 329).A
Engine oil filler cap. See Engine Oil Check (page 319).B
Engine oil dipstick. See Engine Oil Dipstick (page 319).C
Brake fluid reservoir. See Brake Fluid Check (page 328).D
Engine compartment fuse box. See Fuses (page 305).E
Engine coolant reservoir. See Engine Coolant Check (page 324).F
317
2023 Explorer (CTW) Canada/United States of America, enUSA, Edition date: 202209, First-PrintingMaintenanceE288092

Air filter assembly. See Changing the Engine Air Filter (page 322).G
Washer fluid reservoir. See Washer Fluid Check (page 336).H
UNDER HOOD OVERVIEW - 3.3L
Battery. See Changing the 12V Battery (page 329).A.
Engine oil filler cap. See Engine Oil Check (page 319).B.
Engine oil dipstick. See Engine Oil Dipstick (page 319).C.
Brake fluid reservoir. See Brake Fluid Check (page 328).D.
Engine compartment fuse box. See Fuses (page 305).E.
Engine coolant reservoir cap. See Engine Coolant Check (page 324).F.
Air filter assembly. See Changing the Engine Air Filter (page 321).G.
Inverter system controller coolant reservoir cap- HEV only.H.
Washer fluid reservoir. See Washer Fluid Check (page 336).I.
318
2023 Explorer (CTW) Canada/United States of America, enUSA, Edition date: 202209, First-PrintingMaintenanceE288595

1.Park your vehicle on a level surface.
2.Look at the brake fluid reservoir to seewhere the brake fluid level is relativeto the MIN and the MAX marks on thereservoir.
Note:If the brake fluid level is between theMIN and the MAX marks on the reservoir, itis acceptable.
Note:If the brake fluid level is below theMIN mark or above the MAX mark, haveyour vehicle checked as soon as possible.
Note:To avoid fluid contamination, thereservoir cap must remain in place and fullytight, unless you are adding fluid.
Only use fluid that meets ourspecifications. See Capacities andSpecifications (page 378).
Brake Fluid Service Interval
Brake fluid absorbs water over time whichdegrades the effectiveness of the brakefluid. Change the brake fluid at thespecified intervals to prevent degradedbraking performance.
For detailed interval information, seeScheduled Maintenance in your Owner'sManual or your local maintenance guide.
POWER STEERING FLUID
CHECK
Your vehicle is equipped with an electricpower steering (EPS) system. There is nofluid reservoir to check or fill.
CHANGING THE 12V BATTERY
- EXCLUDING: HYBRID
ELECTRIC VEHICLE (HEV)
WARNING: Batteries normallyproduce explosive gases which cancause personal injury. Therefore, do notallow flames, sparks or lightedsubstances to come near the battery.When working near the battery, alwaysshield your face and protect your eyes.Always provide correct ventilation.
WARNING: When lifting aplastic-cased battery, excessive pressureon the end walls could cause acid to flowthrough the vent caps, resulting inpersonal injury and damage to thevehicle or battery. Lift the battery with abattery carrier or with your hands onopposite corners.
WARNING: Keep batteries out ofreach of children. Batteries containsulfuric acid. Avoid contact with skin,eyes or clothing. Shield your eyes whenworking near the battery to protectagainst possible splashing of acidsolution. In case of acid contact with skinor eyes, flush immediately with water fora minimum of 15 minutes and get promptmedical attention. If acid is swallowed,call a physician immediately.
329
2023 Explorer (CTW) Canada/United States of America, enUSA, Edition date: 202209, First-PrintingMaintenanceE170684

WARNING: Battery posts,terminals and related accessoriescontain lead and lead compounds,chemicals known to the State ofCalifornia to cause cancer andreproductive harm.Wash your handsafter handling.
WARNING: This vehicle may havemore than one battery. Removing thebattery cables from only one batterydoes not disconnect your vehicleelectrical system. Make sure youdisconnect the battery cables from allbatteries when disconnecting power.Failure to do so may cause seriouspersonal injury or property damage.
WARNING: For vehicles withAuto-Start-Stop the battery requirementis different. You must replace the batterywith one of exactly the samespecification.
The battery is in the engine compartment.See Under Hood Overview (page 317).
Your vehicle has a maintenance-freebattery. It does not require additionalwater during service.
If the vehicle battery has a cover and venthose, make sure you correctly install it aftercleaning or replacing the battery.
For longer, trouble-free operation, keep thetop of the battery clean and dry and thebattery cables tightly fastened to thebattery terminals. If any corrosion ispresent on the battery or terminals, removethe cables from the terminals and cleanwith a wire brush. You can neutralize theacid with a solution of baking soda andwater.
We recommend that you disconnect thenegative battery cable terminal from thebattery if you plan to store your vehicle foran extended period.
Note:If you only disconnect the negativebattery cable terminal, make sure it isisolated or placed away from the batteryterminal to avoid unintended connection orarcing.
If you replace the battery make sure itmatches the electrical requirements ofyour vehicle.
If you disconnect or replace the batteryand your vehicle has an automatictransmission, it must relearn its adaptivestrategy. Because of this, the transmissionmay shift firmly when first driven. This isnormal operation while the transmissionfully updates its operation to optimumshift feel.
Battery Sensor Reset
When you install a new battery, reset thebattery sensor by doing the following:
1.Switch the ignition on, and leave theengine off.
Note:Complete Steps 2 and 3 within 10seconds.
2.Flash the high beam headlamps fivetimes, ending with the high beams off.
3.Press and release the brake pedal threetimes.
The battery warning lamp flashes threetimes to confirm that the reset issuccessful.
Battery Management System (If
Equipped)
The system monitors battery conditionsand takes actions to extend battery life. Ifexcessive battery drain is detected, thesystem temporarily disables someelectrical systems to protect the battery.
Systems included are:
•Heated rear window.
•Heated seats.
330
2023 Explorer (CTW) Canada/United States of America, enUSA, Edition date: 202209, First-PrintingMaintenance

•Climate control.
•Heated steering wheel.
•Audio unit.
•Navigation system.
A message may appear in the informationdisplay to alert you that battery protectionactions are active. This message is only fornotification that an action is taking place,and not intended to indicate an electricalproblem or that the battery requiresreplacement.
After battery replacement, or in somecases after charging the battery with anexternal charger, the battery managementsystem requires eight hours of vehicle sleeptime to relearn the battery state of charge.During this time, your vehicle must remainfully locked with the ignition switched off.
Note:Prior to relearning the battery stateof charge, the battery management systemmay temporarily disable some electricalsystems.
Electrical Accessory Installation
To make sure the battery managementsystem works correctly, do not connect anelectrical device ground connectiondirectly to the battery negative post. Thiscan cause inaccurate measurements ofthe battery condition and potentialincorrect system operation.
Note:If you add electrical accessories orcomponents to the vehicle, it may adverselyaffect battery performance and durability.This may also affect the performance ofother electrical systems in the vehicle.
Remove and Reinstall the Battery
Install a battery approved for use by ourspecifications. See Capacities andSpecifications (page 378).
To disconnect or remove the battery, dothe following:
1.Apply the parking brake and switch theignition off.
2.Switch all electrical equipment off, forexample lights and radio.
3.Wait a minimum of two minutes beforedisconnecting the battery.
Note:The engine management system hasa power hold function and remains poweredfor a period of time after you switch theignition off. This is to allow the system tostore diagnostic and adaptive tables.Disconnecting the battery without waitingcan cause damage not covered by thevehicle warranty.
4.Disconnect the negative battery cableterminal.
5.Disconnect the positive battery cableterminal.
6.Remove the battery securing clamp.
7.Remove the battery.
8.To install, reverse the removalprocedure.
Note:Before reconnecting the battery,make sure the ignition remains switched off.
Note:Make sure to fully tighten the batterycables.
If you disconnect or replace the vehiclebattery, you must reset the followingfeatures:
•Window bounce-back. See PowerWindows (page 94).
•Clock Settings.
•Pre-set radio stations.
Battery Disposal
Make sure that you dispose ofold batteries in anenvironmentally friendly way.Seek advice from your local authorityabout recycling old batteries.
331
2023 Explorer (CTW) Canada/United States of America, enUSA, Edition date: 202209, First-PrintingMaintenanceE107998