2021 FORD F-150 ignition

ENGINE SPECIFICATIONS - 3.5L ECOBOOST™
Specification
Engine
10.5:1
Compression ratio.
213.4 in³ (3,497 cm³)
Displacement.
1-4-2-5-3-6
Firing order.
Coil on plug
Ignition system.
Minimum 87 octane
Required fuel.
0.028 in (0.7 mm) - 0.031 in (0.8 mm)
Spark plug gap.
577
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Capacities and Specifications

ENGINE SPECIFICATIONS - 3.5L, HYBRID ELECTRIC VEHICLE
(HEV)
Specification
Engine
10.5:1
Compression ratio.
213.4 in³ (3,497 cm³)
Displacement.
1-4-2-5-3-6
Firing order.
Coil on plug
Ignition system.
Minimum 87 octane
Required fuel.
0.028 in (0.7 mm) - 0.031 in (0.8 mm)
Spark plug gap.
578
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Capacities and Specifications

ENGINE SPECIFICATIONS - 5.0L
Specification
Engine
12:1
Compression ratio.
307 in³ (5,038 cm³)
Displacement.
1-3-7-2-6-5-4-8
Firing order.
Coil on plug, coil near plug
Ignition system.
Minimum 87 octane
Required fuel.
0.039 in (1 mm) - 0.043 in (1.1 mm)
Spark plug gap.
579
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Capacities and Specifications

WHAT ARE THE AUXILIARY
SWITCHES
The auxiliary switchboard on the overhead
console makes aftermarket customization
easier with six prewired switches
connected to the power distribution box.
Each circuit is individually fused for
connection of electrical accessories.
LOCATING THE AUXILIARY
SWITCHES
The auxiliary switchboard on the overhead
console makes aftermarket customization
easier with six prewired switches
connected to the power distribution box.
The circuits are individually fused for
connection of electrical accessories.
The switches have labels for AUX 1 through
AUX 6. They only operate when the ignition
is in the on position, whether the engine is
running or not. We recommend that you
leave the engine running to maintain
battery charge when using the switches
for an extended time or when using higher
current draw accessories. When you turn
on a switch, the indicator light on the
switch illuminates and the circuit provides
power to the device wired to that switch.
Note:
AUX switch 1 operates the off-road
lamps when your vehicle comes with this
option. LOCATING THE AUXILIARY
SWITCH WIRING
There are three sets of blunt-cut and
sealed circuits. Two sets are under the
hood and behind the battery tray, and one
set is inside your vehicle at the passenger
footwell.
The powered set (A) is taped behind the
battery tray and has a red spot tape mark.
The second set (B) is also under the hood.
It is taped behind the battery tray and has
a white spot tape mark. This set routes to
the interior passenger footwell.
Remove the battery and battery tray to
access the underhood circuits.
659
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Auxiliary Switches - Raptor/TremorE220728 E347548 E347399

How Does the Electronic Locking
Differential Work - Raptor......................301
How Does the Garage Door Opener Work...............................................................210
How Does the Lane Keeping System Work..............................................................382
How Does the Personal Safety System Work...................................................................71
How Does the Rear Occupant Alert System Work..............................................207
How Does the Safety Canopy ™
Work
..................................................................73
How Does the Selective Catalytic Reduction System Work.........................273
How Does Traction Control Work...........319
How Does Trailer Backup Assistance Work..............................................................446
How Does Trailer Hitching Assistance Work..............................................................439
How Does Trailer Reverse Guidance Work..............................................................459
How Does Trailer Sway Control Work..............................................................438
How Do Personal Profiles Work..............651
How Do the Front Airbags Work...............72
How Do the Knee Airbags Work................73
How Do the Side Airbags Work.................72
Hybrid Display Information........................181 How Does EV Coach Work............................... 181
What Is EV Coach................................................ 181
Hybrid Electric Vehicle Driving Characteristics...........................................249
Hybrid Electric Vehicle Indicators..........249
Hybrid Electric Vehicle Information.................................................249
Eco Idle.................................................................. 250
Eco Idle – Troubleshooting............................. 251
Hybrid Electric Vehicle Information – Troubleshooting............................................ 250
Hybrid Electric Vehicle Information – Troubleshooting........................................250
Hybrid Electric Vehicle Information – Frequently Asked Questions....................250
I
Identifying Fuse Types
...............................502
Identifying the Audio Unit........................626 Identifying the Auxiliary Switch
Wiring...........................................................660
Identifying the Climate Control Unit.................................................................186
Ignition Switch
..............................................236
Inflating the Tires.........................................555
Information On Demand Screen - Vehicles With: 12.3 Inch Screen...........639
Information on the Tire Sidewall
...........543
Inspecting the Tire for Damage.............556
Inspecting the Tire for Wear....................556
Inspecting the Wheel Valve Stems.......557
Installing Child Restraints...........................53 Attaching the Front Seat Tether
Strap.................................................................... 58
Attaching the Rear Seat Tether Strap..........59
Combining the Seatbelt and Lower Anchors for Attaching Child Restraints.................... 58
Installing a Child Restraint in a Center Seat....................................................................... 57
Using Lower Anchors and Tethers for Children............................................................... 57
Using Seatbelts..................................................... 53
Using Tether Straps............................................. 58
Instrument Cluster Display.......................178 Hybrid Display Information.............................. 181
Personalized Settings........................................ 181
Trip Computer - Vehicles With: 4.2 Inch Screen............................................................... 180
Trip Computer - Vehicles With: 8 Inch Screen/12.3 Inch Screen............................. 180
Instrument Cluster Display Main Menu - Raptor, Vehicles With: 12.3 Inch
Screen............................................................179
Instrument Cluster Display Main Menu - Vehicles With: 12.3 Inch Screen
............178
Instrument Cluster Display Main Menu - Vehicles With: 4.2 Inch Screen..............179
Instrument Cluster Display Main Menu - Vehicles With: 8 Inch Screen
.................179
Instrument Cluster Indicators...................174
Instrument Cluster Indicators - Police Responder....................................................176
Instrument Cluster.......................................169 Fuel Gauge.............................................................. 171
Instrument Cluster Overview - Vehicles With: 12.3 Inch Screen
................................171
778
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Index

Power Running Board Kick Switch........138
Power Running Board Precautions........138
Power Running Board Settings...............138
Power Running Boards...............................138
Power Running Boards –
Troubleshooting............................................. 139
Power Running Boards – Troubleshooting.........................................139
Power Running Boards – Frequently Asked Questions......................................................... 139
Power Seats
...................................................198
Adjusting the Head Restraint........................ 198
Adjusting the Lumbar Support..................... 201
Adjusting the Seat Backrest......................... 200
Adjusting the Seat Cushion........................... 200
Adjusting the Seat Height............................... 201
Head Restraint Components......................... 198
Installing the Head Restraint......................... 199
Moving the Seat Backward and Forward............................................................. 199
Removing the Head Restraint....................... 199
Pre-Collision Assist Limitations - Police Responder...................................................397
Pre-Collision Assist Limitations.............397
Pre-Collision Assist Precautions...........396
Pre-Collision Assist
....................................396
Automatic Emergency Braking..................... 401
Distance Alert...................................................... 401
Distance Indication.......................................... 400
Evasive Steering Assist................................... 402
Pre-Collision Assist – Troubleshooting............................................ 403
Pre-Collision Assist – Troubleshooting
.......................................403
Pre-Collision Assist – Frequently Asked
Questions........................................................ 405
Pre-Collision Assist – Information Messages......................................................... 403
Pre-Collision Assist – Warning Lamps............................................................... 403
Preparing Your Vehicle for Storage.........................................................540
Programming a MyKey
...............................100
Programming the Garage Door Opener to Your Garage Door Opener
Motor...............................................................211
Programming the Garage Door Opener to Your Gate Opener Motor....................212 Programming the Garage Door Opener
to Your Hand-Held Transmitter.............211
Programming the Remote Control - Vehicles With: Flip Key..............................96
Programming the Remote Control - Vehicles With: Push Button Start.........95
Properly Adjusting the Driver and Front Passenger Seats..........................................75
Puncture See: Changing a Flat Tire............................... 566
Push Button Ignition Switch....................237
R
Radio Frequency Certification Labels............................................................705
Blind Spot Information System Sensors............................................................. 705
Body Control Module....................................... 706
Cruise Control Module..................................... 709
Garage Door Opener........................................... 711
Keys and Remote Controls.............................. 712
Passive Anti-Theft System.............................. 715
Radio Transceiver Module............................... 719
SYNC........................................................................\
721
Tire Pressure Monitoring System Sensors............................................................. 726
Wireless Accessory Charging Module.............................................................. 730
Rear Axle Fluid Capacity and Specification - Police Responder
........618
Rear Axle Fluid Capacity and Specification - Raptor..............................617
Rear Axle Fluid Capacity and Specification...............................................616
Rear Exterior - Police Responder.............48
Rear Exterior - Raptor...................................47
Rear Exterior....................................................46
Rear Occupant Alert System Audible Warnings
.....................................................208
Rear Occupant Alert System Indicators.....................................................208
Rear Occupant Alert System Limitations...................................................207
Rear Occupant Alert System Precautions.................................................207
Rear Occupant Alert System
...................207
783
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Index

Setting the Adaptive Cruise Control
Speed............................................................355
Setting the Blower Motor Speed............187
Setting the Clock and Date.....................628
Setting the Cruise Control Speed.........350
Setting the Hill Descent Speed..............330
Setting the Speed Sign Recognition Speed Tolerance
........................................410
Setting the Speed Sign Recognition Speed Warning..........................................410
Setting the Temperature............................187
Setting the Trail Control Speed - Raptor...........................................................324
Setting the Wake Word
............................640
Setting Up the Trailer Backup Assistance for a Conventional Trailer......................446
Applying the Trailer Reversing Aid Sticker............................................................... 448
Calibrating the System................................... 449
Configuring the Trailer..................................... 446
Trailer Sensor Installation.............................. 448
Setting Up Trailer Reverse Guidance for a Conventional Trailer.............................459
Applying the Trailer Reverse Aid Sticker................................................................ 461
Calibrating the System.................................... 462
Configuring the Trailer..................................... 459
Trailer Sensor Installation............................... 461
Shifting Your Vehicle Into Gear - Police Responder...................................................283
Shifting Your Vehicle Into Gear - Raptor...........................................................282
Shifting Your Vehicle Into Gear...............282
Side Parking Aid...........................................336 Locating the Side Parking Aid
Sensors............................................................. 337
Side Parking Aid Audible Warnings.............337
Side Parking Aid Limitations......................... 336
What is the Side Parking Aid......................... 336
Sitting in the Correct Position
..................195
Smart Hitch Limitations............................442
Smart Hitch
...................................................442
Snow Plowing Precautions......................479
Snow Plowing...............................................479
Snowplow Mode................................................ 481
Snowplow Mode
..........................................481
Switching Snowplow Mode On and
Off....................................................................... 481What Is Snowplow Mode................................
481
Sounding the Panic Alarm
...........................91
Special Operating Conditions Scheduled Maintenance - Diesel..............................670
Special Operating Conditions Scheduled Maintenance - Gasoline.........................675
Special Operating Conditions Scheduled Maintenance - Raptor
.............................678
Speed Control See: Cruise Control........................................... 350
Speedometer...................................................171
Speed Sign Recognition Indicators....................................................409
Speed Sign Recognition Limitations.................................................409
Speed Sign Recognition Precautions................................................409
Speed Sign Recognition...........................409 Speed Sign Recognition –
Troubleshooting............................................. 410
Speed Sign Recognition – Troubleshooting
........................................410
Speed Sign Recognition – Frequently Asked
Questions.......................................................... 411
Speed Sign Recognition – Information Messages.......................................................... 410
Stability Control Indicator........................323
Stability Control
............................................321
Starter Switch See: Ignition Switch.......................................... 236
Starting and Stopping the Engine – Precautions.................................................236
Starting and Stopping the Engine.........236 Automatic Engine Stop - Vehicles With:
Keyless Entry and Push Button
Start................................................................... 243
Engine Block Heater......................................... 240
Police Engine Idle - Police Responder....................................................... 242
Starting and Stopping the Engine – Troubleshooting............................................ 244
Starting the Engine............................................ 237
Stopping the Engine.......................................... 241
Starting and Stopping the Engine – Troubleshooting........................................244
Starting and Stopping the Engine – Frequently Asked Questions....................246
786
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Index