2021 FORD F-150 warning light

pressure sensors are mounted into
each tire on your trailer. The
sensors send a message to your
vehicle indicating the current
trailer tire pressure and
temperature.
If the trailer tire pressure
monitoring system detects that a
tire is low, a warning message
appears in the information display.
The trailer tire information screen
in the information display
highlights the tire with a low
pressure.
If the trailer tire pressure
monitoring system detects that a
tire temperature is over temp, a
warning message appears in the
Information display. The trailer tire
information screen in the
information display highlights the
tire with a high temperature.
The main function of the trailer tire
pressure monitoring system is to
warn you when your trailer tires
need air or if the tires are
experiencing high temperatures.
It can also warn you in the event
the system is no longer capable
of functioning as intended. See
Tire Pressure Monitoring
System – Information
Messages
(page 565). When a Temporary Spare or
New Tire is Installed
If you have replaced a trailer tire
with a new or spare tire, a warning
message appears and pressure
readings are no longer displayed
for that tire.
To restore the full function of the
trailer tire pressure monitoring
system:
•
Have the damaged wheel and
tire assembly repaired and
remounted to your trailer.
• Install the trailer tire pressure
monitoring sensor into the new
wheel and tire assembly.
• Perform the trailer tire pressure
monitoring system reset
procedure.
Trailer Tire Pressure
Monitoring System Reset
Procedure
Note: You need to perform the tire
pressure monitoring system reset
procedure after each tire rotation,
or when a new trailer tire pressure
sensor is installed into a trailer tire.
The trailer tire pressure monitoring
system can be reset through the
menu in the information display.
See Tire Pressure Monitoring
System – Information
Messages (page 565). Performing
the trailer setup process also
resets the trailer tire pressure
monitoring system.
563
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Tire Pressure Monitoring System

TIRE PRESSURE MONITORING
SYSTEM –
TROUBLESHOOTING
TIRE PRESSURE MONITORING
SYSTEM – WARNING LAMPS The low tire pressure warning
lamp has combined functions,
as it warns you when your tires
need air, and when the system is no longer
capable of functioning as intended. Action Required
Possible Cause
Warning Lamp
After inflating your tires to the manufac-
turer’s recommended pressure as shown
on the tire label, on the edge of driver
door or the B-pillar, drive your vehicle for
at least two minutes over 20 mph
(32 km/h) before the light turns off.
One or more tires are
significantly under inflated
Solid warning lamp
Repair the damaged road wheel and tire
and refit it to your vehicle to restore
operation of the system.
Temporary spare wheel
in use
Solid warning lamp
or flashing warning lamp
If the tires are inflated to the recom-
mended tire pressures and the temporary
spare wheel is not in use, the system
detected a fault that requires service.
Have your vehicle checked as soon as
possible.
Tire pressure monitoring
system malfunction
564
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Tire Pressure Monitoring System

TIRE PRESSURE MONITORING SYSTEM – INFORMATION MESSAGES
Action
Message
After inflating your tires to the manufacturer ’s recommended
pressure as shown on the Tire Label, on the edge of the driver
door or the B-Pillar, drive your vehicle for at least two minutes over 20 mph (32 km/h) before the light turns off.
Tire Pressure Low
The system has detected a fault that requires service. Haveyour vehicle checked as soon as possible.
Tire Pressure Monitor
Fault
The system has detected a fault that requires service or aspare tire is in use. Have your vehicle checked as soon as possible.
Tire Pressure Sensor
Fault
Trailer Tire Pressure Monitoring System Action
Message
One or more tires on your trailer is below the specifiedtire pressure.
Trailer Tire Low Specified:
Displays when one or more tires on your trailer is abovethe recommended temperature.
Trailer Tire Over Temperature
A trailer tire pressure sensor is malfunctioning. If the
warning stays on or continues to come on, contact an authorized dealer as soon as possible.
Trailer Tire Pressure Sensor
Fault
The trailer tire pressure monitoring system is
malfunctioning. If the warning stays on or continues to come on, contact an authorized dealer.
Trailer Tire Pressure Monitor
Fault
The system cannot detect the trailer tire pressuremonitoring system.
Trailer Tire Pressure Monitor
Capability Not Detected
The trailer tire pressure monitoring system is not setup.See
Tire Pressure Monitoring System (page 559).
Trailer Tire Pressure Indication
Not Setup See Manual
565
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Tire Pressure Monitoring System

CHANGING A FLAT TIRE
If you get a flat tire when driving, do not
apply the brake heavily. Instead, gradually
decrease your speed. Hold the steering
wheel firmly and slowly move to a safe
place on the side of the road.
Have a flat serviced by an authorized
dealer to prevent damage to the system
sensors. See Tire Pressure Monitoring
System Precautions (page 560). Replace
the spare tire with a road tire as soon as
possible. When repairing or replacing the
flat tire, have the authorized dealer inspect
the system sensor for damage.
Note: The use of tire sealant could damage
your tire pressure monitoring system. Only
use in roadside emergencies.
Note: The tire pressure monitoring system
indicator light illuminates when the spare
tire is in use. To restore the full function of
the monitoring system, you must mount all
road wheels that come with tire pressure
monitoring sensors on this vehicle.
Dissimilar Spare Wheel and Tire
Assembly Information WARNING:
Failure to follow these
guidelines could result in an increased
risk of loss of vehicle control, injury or
death.
If you have a dissimilar spare wheel and
tire, the intent of the spare wheel is for
temporary use only. This means that if you
need to use it, replace it as soon as
possible with a road wheel and tire
assembly that is the same size and type
as the road tires and wheels originally
provided by Ford. We define a dissimilar spare wheel and tire
assembly as a spare wheel and tire
assembly that is different in brand, size or
appearance from the road tires and
wheels.
Full-size dissimilar spare
When driving with the full-size dissimilar
spare wheel and tire assembly, do not:
•
Exceed
70 mph (113 km/h).
• Use more than one dissimilar spare
wheel and tire assembly at a time.
• Use snow chains on the end of the
vehicle with the dissimilar spare wheel
and tire assembly.
Engage any four-wheel drive mode. See
Four-Wheel Drive Limitations (page 292).
The usage of a full-size dissimilar spare
wheel and tire assembly can lead to
impairment of the following:
• Handling, stability and braking
performance.
• Comfort and noise.
• Ground clearance and parking at curbs.
• Winter weather driving capability.
• Wet weather driving capability.
• Four-wheel drive capability.
When driving with the full-size dissimilar
spare wheel and tire assembly, give
additional caution to:
• Towing a trailer.
• Driving vehicles that come with a
camper body.
• Driving vehicles with a load on the
cargo rack.
Drive cautiously when using a full-size
dissimilar spare wheel and tire assembly
and seek service as soon as possible.
566
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Changing a Road Wheel

Maintenance and Roadside Assistance
Examples
Result
Command
Your vehicle calls
the roadside assist- ance phonenumber.
Call roadside
assistance.
Vehicle Information Examples Result
Command
Information about
the feature appears on the center
display or FordPass app.
How does cruise
control work?
Information aboutthe warning light appears on the
center display or FordPass app.
What does the
warning light mean?
Information aboutopen recalls
appears on the
center display or FordPass app.
Am I affected by
any recalls? Charging Examples Result
Command
Information about
the time and loca- tion of the next
charge appears on the center display or FordPass app.
When is my next
scheduled charge?
Shows the chargingdisplay in thevehicle.
Show me the char-
ging schedule.
Shows the chargingdisplay in thevehicle.
Change my charge
schedule.
642
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Voice Interaction

SUNA Products and/or Services are
intended as an aid to personal motoring
and travel planning, and do not provide
comprehensive or accurate information on
all occasions. On occasions, you may
experience additional delay as a result of
using SUNA Products and/or Services. You
acknowledge that it is not intended, or
suitable, for use in applications where time
of arrival or driving directions may impact
the safety of the public or yourself.
4. Use of SUNA Products and Services
while driving
You, and other authorized drivers of the
vehicle in which SUNA Products and/or
Services are available or installed and
active, remain at all times responsible for
observing all relevant laws and codes of
safe driving. In particular, you agree to only
actively operate SUNA Products and/or
Services when the Vehicle is at a complete
stop and it is safe to do so.
5. Service Continuity and Reception of
the SUNA Traffic Channel
We will use reasonable endeavors to
provide the SUNA Traffic Channel 24 hours
a day, 365 days a year. The SUNA Traffic
Channel may occasionally be unavailable
for technical reasons or for planned
maintenance. We will try to perform
maintenance at times when congestion is
light. We reserve the right to withdraw
SUNA Products and/or Services at any
time.
Also, we cannot assure the uninterrupted
reception of the SUNA Traffic Channel
RDS-TMC signal at any particular location.
6. Limitation of Liability
Neither Intelematics (nor its suppliers or
the manufacturer of your device (the
“Suppliers”)) shall be liable to you or to
any third party for any damages either
direct, indirect, incidental, consequential
or otherwise arising out of the use of or
inability to use SUNA Products and/or Services even if Intelematics or a Supplier
has been advised of the possibility of such
damages. You also acknowledge that the
neither Intelematics nor any Supplier
guarantees nor make any warranties that
relate to the availability, accuracy or
completeness of SUNA Products and/or
Services, and to the extent which it is
lawful to do so, both Intelematics and each
Supplier excludes any warranties which
might otherwise be implied by any State
or Federal legislation in relation to SUNA
Products and/or Services.
7. Please Note
Great care has been taken in preparing this
manual. Constant product development
may mean that some information is not
entirely up-to-date. The information in this
document is subject to change without
notice.
EMISSION LAW
WARNING: Do not remove or alter
the original equipment floor covering or
insulation between it and the metal floor
of the vehicle. The floor covering and
insulation protect occupants of the
vehicle from the engine and exhaust
system heat and noise. On vehicles with
no original equipment floor covering
insulation, do not carry passengers in a
manner that permits prolonged skin
contact with the metal floor. Failure to
follow these instructions may result in
fire or personal injury.
U.S. federal laws and certain state laws
prohibit removing or rendering inoperative
emission control system components.
Similar federal or provincial laws may
apply in Canada. We do not approve of any
vehicle modification without first
determining applicable laws.
760
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Customer Information

Extending the Exterior Mirrors.................166
Extending the Remote Start
Duration........................................................184
Exterior Bulbs................................................522
Changing a Front Fog Lamp Bulb...............528
Changing a Front Side Marker Lamp
Bulb.................................................................... 527
Changing a Front Turn Signal Lamp Bulb.................................................................... 526
Changing a Headlamp Bulb.......................... 524
Changing a High Mounted Stoplamp Bulb................................................................... 530
Changing a License Plate Lamp Bulb................................................................... 530
Changing a Rear Lamp Bulb......................... 528
Changing a Rear Turn Signal Lamp Bulb.................................................................... 529
Changing a Reversing Lamp Bulb...............530
Changing a Stoplamp Bulb........................... 529
Exterior Bulb Specification Chart................522
Removing a Rear Lamp Assembly..............524
Exterior Lamps
..............................................149
Exterior Lamp Audible Warning.....................151
Exterior Lamp Indicators................................... 151
How Do Cornering Lamps Work................... 149
Switching the Cargo Lamps On.................... 150
Switching the Daytime Running Lamps On and Off.............................................................. 149
Switching the Front Fog Lamps On and Off....................................................................... 150
Switching the Spot Lamps On and Off....................................................................... 150
Switching the Turn Signal Lamps On and Off....................................................................... 149
Exterior Lighting Control.............................147
Exterior Lighting Control - Police Responder....................................................147
Exterior Lighting
.............................................147
Adaptive Front Lighting.................................... 157
Autolamps............................................................ 148
Automatic High Beam Control...................... 152
Automatic High Beam Control – Troubleshooting............................................. 154
Exterior Lamps.................................................... 149
Exterior Zone Lighting........................................ 151
Glare Free Lighting............................................. 155
Glare Free Lighting – Troubleshooting.............................................. 157Headlamps............................................................
147
Headlamps – Troubleshooting.....................148
Exterior Mirrors
..............................................165
Auto-Dimming Exterior Mirror....................... 166
Exterior Zone Lighting
..................................151
Exterior Zone Lighting Settings..................... 152
Using the Exterior Zone Lighting.................... 151
What Is Exterior Zone Lighting........................ 151
F
Fastening and Unfastening the Seatbelts
........................................................64
Feature Bar....................................................638
Filling the Selective Catalytic Reduction System Tank................................................275
Filling the Selective Catalytic Reduction System Tank in Cold Weather..................275
Filling the Selective Catalytic Reduction System Tank Using a Fuel Station
Pump.................................................................. 275
Filling the Selective Catalytic Reduction System Tank Using a Portable
Container.......................................................... 276
Flat Tire See: Changing a Flat Tire............................... 566
Floor Mats.......................................................477
Folding the Exterior Mirrors - Vehicles With: Manual Folding Mirrors................165
Folding the Exterior Mirrors - Vehicles With: Power Folding Mirrors..................165
Foot Pedals See: Adjusting the Pedals................................ 142
Ford Performance...........................................21
Ford Protect
..................................................662
Four-Wheel Drive.........................................291
Four-Wheel Drive Modes................................ 295
Four-Wheel Drive – Troubleshooting.........297
Four-Wheel Drive Indicators...................296
Four-Wheel Drive Limitations.................292
Four-Wheel Drive Modes
..........................295
Four-Wheel Drive Auto.................................... 295
Four-Wheel Drive High.................................... 296
Four-Wheel Drive Low..................................... 296
Two-Wheel Drive High..................................... 295
Four-Wheel Drive Precautions...............292
775
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Index

Four-Wheel Drive –
Troubleshooting........................................297
Four-Wheel Drive – Information Messages......................................................... 297
Four-Wheel Drive – Warning Lamps..........297
Front Axle Fluid Capacity and Specification - 4x4...................................616
Front Exterior...................................................43
Front Exterior - Police Responder............45
Front Exterior - Raptor.................................44
Front Parking Aid.........................................335 Front Parking Aid Audible Warnings...........336
Front Parking Aid Limitations........................ 335
Locating the Front Parking Aid Sensors............................................................. 336
What is the Front Parking Aid....................... 335
Front Passenger Sensing System............76 Front Passenger Sensing System
Indicators............................................................ 78
Front Passenger Sensing System Precautions........................................................ 78
How Does the Front Passenger Sensing System Work..................................................... 76
What Is the Front Passenger Sensing System................................................................. 76
Front Seat Precautions..............................195
Front Seats.....................................................195 Heated Seats....................................................... 202
Manual Seats....................................................... 196
Massage Seats.................................................... 201
Power Seats......................................................... 198
Ventilated Seats................................................. 203
Fuel and Refueling
......................................255
Fuel and Refueling –
Troubleshooting............................................ 267
Fuel Quality.......................................................... 256
Refueling................................................................ 261
Running Out of Fuel......................................... 260
Fuel and Refueling Precautions.............255
Fuel and Refueling – Troubleshooting........................................267
Fuel and Refueling – Information Messages..........................................................267
Fuel and Refueling – Warning Lamps................................................................ 267
Fuel Gauge
........................................................171
Fuel Gauge Limitations..................................... 172
Locating the Fuel Filler Door........................... 172What Is Distance to Empty..............................
172
What Is the Fuel Gauge..................................... 171
What Is the Low Fuel Reminder..................... 172
Fuel Quality
...................................................256
Selecting the Correct Fuel.............................. 256
Selecting the Correct Fuel for Cold Weather............................................................ 257
Switching Between E85 and Gasoline........................................................... 260
Fuel Tank Capacity - Diesel
....................604
Fuel Tank Capacity - Excluding: Hybrid Electric Vehicle (HEV)............................266
Fuel Tank Capacity - Gasoline, Excluding: Hybrid Electric Vehicle (HEV)
.............603
Fuel Tank Capacity - Gasoline, Hybrid Electric Vehicle (HEV)............................605
Fuel Tank Capacity - Hybrid Electric Vehicle (HEV)
.............................................267
Fuel Tank Capacity - Raptor...................606
Fuse Precautions
.........................................493
Fuses................................................................493
Body Control Module Fuse Box................... 499
Fuses – Troubleshooting................................ 502
Under Hood Fuse Box...................................... 493
Fuses – Troubleshooting..........................502 Fuses – Frequently Asked Questions........502
G
Garage Door Opener...................................210
Garage Door Opener Limitations...........210
Garage Door Opener Precautions..........210
Garage Door Opener Radio Frequencies..................................................213
General Maintenance Information.......664
Glare Free Lighting
.......................................155
Glare Free Lighting Indicators........................ 156
Glare Free Lighting Limitations..................... 156
Glare Free Lighting Precautions....................155
Glare Free Lighting Requirements................155
How Does Glare Free Lighting Work............155
Overriding Glare Free Lighting....................... 156
Switching Glare Free Lighting On and Off....................................................................... 156
Glare Free Lighting – Troubleshooting.........................................157
Glare Free Lighting – Information Messages........................................................... 157
776
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Index