2021 FORD EXPLORER check engine

Readiness for Inspection and Maintenance
(I/M) Testing................................................... 198
Changing a Bulb............................................341 LED Lamps........................................................... 342
License Plate Lamp.......................................... 342
Rear Direction Indicator and Reversing Lamp.................................................................. 341
Changing a Fuse..........................................320 Fuses...................................................................... 320
Changing a Road Wheel............................374
Dissimilar Spare Wheel and Tire Assembly
Information...................................................... 374
Tire Change Procedure.................................... 375
Changing the 12V Battery.........................336 Battery Management System....................... 337
Remove and Reinstall the Battery..............338
Changing the Engine Air Filter - 2.3L EcoBoost™.................................................328
Changing the Engine Air Filter - 3.0L................................................................329
Changing the Engine Air Filter - 3.3L
................................................................330
Changing the Front Wiper Blades.........340
Changing the Rear Wiper Blades
............341
Changing the Vehicle Wi-Fi Hotspot Name or Password
...................................425
Checking MyKey System Status..............66 MyKey Distance.................................................... 66
Number of Admin Keys...................................... 67
Number of MyKeys............................................... 67
Checking the Wiper Blades.....................340
Child Restraint and Seatbelt Maintenance.................................................43
Child Restraint Positioning.........................35
Child Safety......................................................23 General Information............................................ 23
Child Safety Locks.........................................36 Left-Hand Side...................................................... 37
Right-Hand Side................................................... 37
Cleaning Leather Seats..............................347
Cleaning Products
.......................................343
Materials............................................................... 343
Cleaning the Engine....................................345
Cleaning the Exterior..................................344 Cleaning the Exterior Lamps......................... 344
Cleaning the Exterior Precautions...............344
Exterior Chrome Parts..................................... 344
Exterior Plastic Parts........................................ 344Stripes or Graphics...........................................
344
Underbody........................................................... 345
Under Hood......................................................... 345
Cleaning the Instrument Panel and Instrument Cluster Lens.........................347
Cleaning the Interior
...................................346
Mirrors.................................................................... 346
Cleaning the Wheels..................................348
Cleaning the Windows and Wiper Blades...........................................................346
Clearing All MyKeys.......................................66
Climate.............................................................451 Accessing Rear Climate Controls................453
Accessing the Climate Control Menu.........451
Directing the Airflow.......................................... 451
Rear Climate Control Lock Indicator..........453
Setting the Blower Motor Speed.................. 451
Setting the Temperature................................. 451
Switching Auto Mode On and Off................451
Switching Dual Zone Mode On and Off....................................................................... 452
Switching Maximum Air Conditioning On and Off.............................................................. 452
Switching Maximum Defrost On and Off....................................................................... 452
Switching Rear Auto Mode On and Off...................................................................... 453
Switching Recirculated Air On and Off...................................................................... 453
Switching the Air Conditioning On and Off....................................................................... 451
Switching the Climate Controlled Seats On and Off.............................................................. 452
Switching the Climate Control On and Off....................................................................... 452
Switching the Heated Exterior Mirrors On and Off.............................................................. 452
Switching the Heated Rear Window On and Off....................................................................... 452
Switching the Heated Seats On and Off....................................................................... 452
Switching the Heated Steering Wheel On and Off.............................................................. 452
Switching the Heated Windshield On and Off....................................................................... 452
Switching the Rear Climate Controlled Seats On and Off.......................................... 453
562
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Index

Switching the Rear Heated Seats On and
Off...................................................................... 453
Switching the Rear Ventilated Seats On and Off.............................................................. 453
Switching the Ventilated Seats On and Off...................................................................... 453
Climate Control.............................................139
Cold Weather Precautions.......................296
Collision, Damage or Fire Event.............302 Guidance for Ford Motor Company Electric
and Hybrid-Electric Vehicles Equipped
With High Voltage Batteries..................... 302
Connected Vehicle
.......................................421
Connecting the Vehicle to a Mobile
Network............................................................. 421
Connected Vehicle Data...............................17
Connected Vehicle Limitations...............421
Connected Vehicle Requirements..........421
Connected Vehicle – Troubleshooting - Vehicles With: Modem............................422
Connected Vehicle – Troubleshooting - Vehicles With: SYNC 3............................423
Connecting the Vehicle to a Mobile Network.........................................................421
Connecting FordPass to the Modem..........421
Enabling and Disabling the Modem............421
What Is the Modem........................................... 421
Connecting the Vehicle to a Wi-Fi Network - Vehicles With: SYNC 3
........421
Coolant Check See: Engine Coolant Check............................. 331
Crash Sensors and Airbag Indicator
........52
Creating a MyKey...........................................65
Programming and Changing Configurable
Settings.............................................................. 66
Creating a Vehicle Wi-Fi Hotspot..........425 Connecting a Device to the Wi-Fi
Hotspot............................................................ 425
Finding the Wi-Fi Hotspot Name and Password......................................................... 425
Cross Traffic Alert........................................268 Cross Traffic Alert Behavior When Trailer
is Attached...................................................... 270
Cross Traffic Alert Indicator........................... 270
Cross Traffic Alert Information Messages........................................................... 271
Cross Traffic Alert System Limitations ....................................................... 270Cross Traffic Alert System Sensors.............270
Switching the System On and Off...............270
Using Cross Traffic Alert.................................
268
Cruise Control
...............................................244
Cruise Control Indicators..........................245
Cruise Control - Vehicles With: Adaptive Cruise Control With Stop and Go..........82
Cruise Control - Vehicles With: Cruise Control
............................................................83
Cup Holders......................................................171
Customer Assistance.................................305
Customer Information................................491 Radio Frequency Certification Labels........491
D
Data Privacy
......................................................15
Services That Third Parties Provide...............15
Services That We Provide.................................. 15
Daytime Running Lamps - Vehicles With: Configurable Daytime Running
Lamps.............................................................89
Daytime Running Lamps - Vehicles With: Daytime Running Lamps (DRL)............89
Digital Radio
...................................................427
HD Radio Reception and Station
Troubleshooting............................................ 428
Direction Indicators
.......................................90
Direction Indicator................................................ 91
Switching the Direction Indicators On and Off........................................................................\
. 90
Doors and Locks.............................................69
Drive Mode Control.....................................278 Drive Modes......................................................... 278
Drive Modes...................................................278 Deep Snow/Sand.............................................. 278
Eco........................................................................\
... 279
Normal................................................................... 279
Slippery.................................................................. 279
Sport....................................................................... 279
Tow/Haul.............................................................. 279
Trail........................................................................\
.. 279
Driver Alert.....................................................259 PRINCIPLE OF OPERATION.......................... 259
USING DRIVER ALERT.................................... 259
Driver and Passenger Airbags....................47 Children and Airbags.......................................... 48
563
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Index

Proper Driver and Front Passenger Seating
Adjustment........................................................ 47
Driver and Passenger Knee Airbags.........51
Driving Aids....................................................259
Driving Hints..................................................295
Driving Through Water..............................296
DRL See: Daytime Running Lamps - Vehicles With:
Configurable Daytime Running
Lamps................................................................. 89
See: Daytime Running Lamps - Vehicles With: Daytime Running Lamps (DRL)................89
E
Economical Driving
.....................................295
Electric Parking Brake.................................215
Applying the Electric Parking Brake.............215
Automatically Releasing the Electric
Parking Brake.................................................. 216
Manually Releasing the Electric Parking Brake................................................................... 216
Releasing the Electric Parking Brake if the Vehicle Battery is Running Out of
Charge................................................................ 217
Electric Vehicle Information
....................460
Engine On Due To............................................... 461
Power Flow.......................................................... 460
Vehicle Operational States........................... 460
Electromagnetic Compatibility
..............530
Emergency Call Limitations.......................56
Emergency Call Requirements.................55
Emergency Call System Data.....................18
Emission Law
.................................................196
Noise Emissions Warranty, Prohibited
Tampering Acts and Maintenance..........197
Tampering With a Noise Control System.............................................................. 196
End User License Agreement..................533 VEHICLE SOFTWARE END USER LICENSE
AGREEMENT (EULA) ................................. 533
Engine Block Heater
.....................................178
Using the Engine Block Heater...................... 179
Engine Coolant Check.................................331 Adding Coolant.................................................... 331
Coolant Change.................................................. 333
Engine Coolant Temperature Management.................................................. 334Fail-Safe Cooling...............................................
333
Recycled Coolant............................................... 332
Severe Climates................................................. 333
Engine Emission Control...........................196
Engine Immobilizer See: Passive Anti-Theft System..................... 78
Engine Oil Check..........................................326 Adding Engine Oil............................................... 327
Engine Oil Dipstick - 2.3L EcoBoost™.................................................326
Engine Oil Dipstick - 3.0L.........................326
Engine Oil Dipstick - 3.3L..........................326
Engine Specifications - 2.3L EcoBoost™.................................................382
Drivebelt Routing............................................... 382
Engine Specifications - 3.0L, ST
............383
Drivebelt Routing............................................... 384
Engine Specifications - 3.0L...................383 Drivebelt Routing............................................... 383
Engine Specifications - 3.3L, Gasoline.......................................................385
Drivebelt Routing............................................... 385
Engine Specifications - 3.3L, Hybrid Electric Vehicle (HEV)............................386
Drivebelt Routing............................................... 386
Entertainment...............................................441 AM/FM Radio...................................................... 442
Apps....................................................................... 450
Bluetooth Stereo or USB................................ 449
CD........................................................................\
... 448
HD Radio ™ Information (If
Available)........................................................ 445
SiriusXM® Satellite Radio (If Activated)........................................................ 443
Sources.................................................................. 442
Supported Media Players, Formats and Metadata Information................................ 450
USB Ports............................................................. 450
Environment.....................................................19
EPB See: Electric Parking Brake.............................. 215
Essential Towing Checks..........................292 Before Towing a Trailer.................................... 293
Hitches................................................................... 292
Launching or Retrieving a Boat or Personal Watercraft (PWC)........................................ 293
Safety Chains...................................................... 292
Trailer Brakes....................................................... 292
564
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Index

Gauges - Vehicles With: 6.5 Inch
Instrument Cluster Display
Screen............................................................103
Distance to Empty............................................. 104
Engine Coolant Temperature Gauge..........104
Fuel Gauge............................................................ 103
Information Bar................................................... 103
Information Display........................................... 103
Low Fuel Reminder............................................ 104
Gearbox See: Transmission.............................................. 201
General Information on Radio Frequencies...................................................57
Intelligent Access.................................................. 57
General Maintenance Information.......482 Multi-Point Inspection.................................... 484
Owner Checks and Services......................... 483
Protecting Your Investment........................... 482
Why Maintain Your Vehicle?......................... 482
Why Maintain Your Vehicle at Your Dealership?..................................................... 482
Getting Assistance Outside the U.S. and Canada.........................................................308
Getting the Services You Need..............305 Away From Home............................................. 305
Global Opening
...............................................97
Remote Control Front Windows..................... 97
H
Hazard Flashers
...........................................299
Headlamp Adjusting See: Adjusting the Headlamps..................... 338
Headlamp Exit Delay....................................88
Headrest See: Head Restraints........................................ 146
Head Restraints
............................................146
Adjusting the Head Restraints....................... 147
Heated Exterior Mirrors..............................144
Heated Rear Window..................................144
Heated Seats.................................................158 Automatic Climate Controlled Seats..........159
Front Seats........................................................... 158
Second Row Heated Seats............................. 159
Heated Steering Wheel...............................83
Heated Windshield
......................................143
Windshield Wiper De-Icer............................... 143Heating
See: Climate Control......................................... 139
High Voltage Battery..................................200 General Information - Hybrid Electric
Vehicle (HEV)................................................ 200
Hill Descent Control....................................228
Hill Descent Control Indicator
.................229
Hill Start Assist...............................................217 Switching the System On and Off................217
Using Hill Start Assist........................................ 217
Hints on Controlling the Interior Climate...........................................................141
Defogging the Side Windows in Cold Weather............................................................. 142
General Hints......................................................... 141
Quickly Cooling the Interior............................. 142
Quickly Heating the Interior............................ 142
Recommended Settings for Cooling...........142
Recommended Settings for Heating..........142
Hints on Driving With Anti-Lock Brakes.............................................................215
Hood Lock See: Opening and Closing the Hood...........322
Horn.....................................................................83
How Does Adaptive Cruise Control With Stop and Go Work....................................246
How Does the Rear Occupant Alert System Work
...............................................160
Hybrid Vehicle Frequently Asked Questions.....................................................184
Hybrid Vehicle Operation..........................182 Battery.................................................................... 182
Braking.................................................................... 183
Driving..................................................................... 182
Driving to Optimize Fuel Economy..............183
Starting................................................................... 182
Stopping................................................................. 182
Transmission Operation................................... 182
I
Ignition Switch................................................172
In California (U.S. Only)............................306
Information Display Control
.......................83
Information Displays.....................................112
General Information - Vehicles With: 12.3
Inch Instrument Cluster Display
Screen................................................................. 114
566
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Index

Locking and Unlocking................................69
Activating Intelligent Access............................ 70
Autolock.................................................................... 71
Battery Saver.......................................................... 72
Illuminated Entry.................................................... 71
Illuminated Exit...................................................... 72
Locking and Unlocking the Doors with the Key Blade........................................................... 69
Power Door Locks................................................ 69
Remote Control.................................................... 69
Smart Unlocks for Integrated Keyhead Remote Control................................................ 70
Smart Unlocks for Intelligent Access Keys........................................................................\
71
Luggage Covers.............................................281
Lug Nuts See: Changing a Road Wheel........................ 374
M
Maintenance..................................................322 General Information.......................................... 322
Manual Seats.................................................148
Adjusting the Seat Backrest........................... 149
Moving the Seat Backward and Forward............................................................. 148
Memory Function
..........................................152
Easy Entry and Exit Feature............................ 153
Linking a PreSet Position to your Remote Control .............................................................. 153
Saving a PreSet Position.................................. 152
Message Center See: Information Displays................................. 112
Mirrors See: Windows and Mirrors............................... 96
Mobile Communications Equipment.......13
Mobile Device Data........................................18
Moonroof..........................................................101 Bounce-Back........................................................102
Opening and Closing the Moonroof.............101
Rear SunShade Opening and Closing........102
Motorcraft Parts - 2.3L EcoBoost™
................................................388
Motorcraft Parts - 3.0L.............................389
Motorcraft Parts - 3.3L..............................390
MyKey – Troubleshooting
...........................67
MyKey ™.............................................................64
Principle of Operation........................................ 64N
Navigation......................................................455
Changing the Format of the Map................457
cityseeker............................................................. 459
Michelin Travel Guide...................................... 460
Navigation Map Accuracy and Updates........................................................... 460
Route Guidance.................................................. 457
Setting a Destination....................................... 456
SiriusXM Traffic and Travel Link.................. 460
Zoom...................................................................... 457
Normal Scheduled Maintenance
..........485
Intelligent Oil-Life Monitor™........................ 485
Normal Maintenance Intervals.................... 486
O
Oil Change Indicator Reset.......................327
Oil Check See: Engine Oil Check...................................... 326
Opening and Closing the Hood..............322 Closing the Hood................................................ 323
Opening the Hood............................................. 322
Ordering Additional Owner's Literature......................................................310
Obtaining a French Owner ’s Manual..........310
Overhead Console.........................................171
Overriding Automatic High Beam Control............................................................95
Overriding Reverse Braking Assist..........221
Overriding the Set Speed..........................252
P
Parking Aids
...................................................230
Principle of Operation...................................... 230
Passive Anti-Theft System.........................78 Programming a Spare Intelligent Access
Key........................................................................\
. 78
SecuriLock®........................................................... 78
PATS See: Passive Anti-Theft System..................... 78
Pedestrian Alert System
.............................54
Pedestrian Protection..................................54
Perchlorate.........................................................11
Personalized Settings..................................119 Fuel Economy...................................................... 120
568
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Index

W
Warning Lamps and Indicators...............107
Adaptive Cruise Control................................... 107
Anti-Lock Braking System.............................. 108
Auto Hold Active................................................. 108
Auto Hold Unavailable..................................... 108
Automatic High Beam Control...................... 108
Auto Start-stop.................................................. 108
Battery.................................................................... 108
Blind Spot Monitor............................................ 108
Brake System Warning Lamp........................ 108
Cruise Control...................................................... 109
Direction Indicator............................................. 109
Door Ajar................................................................ 109
Electric Park Brake............................................. 109
Engine Oil.............................................................. 109
Engine or Motor Coolant Temperature................................................... 109
Fasten Rear Seatbelt........................................ 109
Fasten Seatbelt.................................................. 109
Front Airbag......................................................... 109
Front Fog Lamps................................................ 109
High Beam............................................................ 109
High Voltage Electric System Failure...........110
Hill Descent........................................................... 110
Hood Ajar................................................................ 110
Lamps On............................................................... 110
Liftgate Ajar........................................................... 110
Low Beam Warning............................................ 110
Low Fuel Level...................................................... 110
Low Tire Pressure Warning.............................. 110
Low Washer Fluid................................................ 110
Powertrain Fault.................................................. 110
Ready to Drive....................................................... 110
Service Engine Soon........................................... 110
Stability Control.................................................... 111
Stability Control Off............................................. 111
Washer Fluid Check
....................................340
Washers See: Cleaning the Exterior.............................. 344
See: Wipers and Washers................................. 84
Waxing
.............................................................345
What Is 911 Assist...........................................55
What Is a Connected Vehicle...................421
What Is Adaptive Cruise Control With Lane Centering..........................................246 What Is Automatic High Beam
Control............................................................94
What Is Cruise Control...............................244 Requirements...................................................... 244
What Is Drive Mode Control.....................278
What Is Hill Descent Control
...................228
What Is Intelligent Adaptive Cruise Control..........................................................246
What Is Reverse Braking Assist
..............220
What Is the Cabin Air Filter.......................145
What is the Rear Occupant Alert System..........................................................160
Wheel Nuts See: Changing a Road Wheel........................ 374
Wheels and Tires..........................................351 General Information.......................................... 351
Technical Specifications................................ 380
Windows and Mirrors
...................................96
Windshield Washers.....................................85
Front Camera Washer........................................ 86
Windshield Wipers........................................84 Intermittent Wipe................................................ 84
Speed Dependent Wipers................................ 84
Wiper Blades See: Checking the Wiper Blades.................340
Wipers and Washers.....................................84
Wireless Accessory Charger.....................168
574
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Index