warning light FORD F-150 2021 Owners Manual

Evasive Steering Assist
............................402
Pre-Collision Assist – Troubleshooting .......................................................................
403
Driver Alert
What Is Driver Alert ....................................
407
How Does Driver Alert Work ...................
407
Driver Alert Precautions ...........................
407
Driver Alert Limitations .............................
407
Switching Driver Alert On and Off ........
407
Driver Alert – Troubleshooting ..............
408
Speed Sign Recognition
What Is Speed Sign Recognition .........
409
How Does Speed Sign Recognition Work .......................................................................
409
Speed Sign Recognition Precautions .......................................................................
409
Speed Sign Recognition Limitations .......................................................................
409
Speed Sign Recognition Indicators ......
409
Setting the Speed Sign Recognition Speed Warning ........................................
410
Setting the Speed Sign Recognition Speed Tolerance .....................................
410
Speed Sign Recognition – Troubleshooting ......................................
410
Load Carrying
Load Carrying Precautions .......................
412
Using a Slide-In Camper ...........................
413
Locating the Safety Compliance Certification Labels ................................
413
What Is the Gross Axle Weight Rating ........................................................................\
.
413
What Is the Gross Vehicle Weight Rating ........................................................................\
.
413
What Is the Gross Combined Weight Rating ..........................................................
414
Calculating Payload ....................................
415
Calculating the Load Limit .......................
415Pickup Bed
Pickup Bed Precautions
............................
418
Pickup Bed Anchor Points .......................
418
Tailgate Anchor Points .............................
420
Pickup Bed Ramps ......................................
421
Connecting a Trailer
Connecting a Trailer Precautions .........
424
Hitches ............................................................
424
Connecting a Trailer ...................................
424
Trailer Lighting Check ...............................
426
Connecting a Trailer – Troubleshooting ........................................................................\
427
Towing a Trailer
Towing a Trailer Precautions ..................
428
Trailer Brake Precautions ........................
428
Towing a Trailer Limitations ...................
429
Loading Your Trailer ...................................
429
Trailer Towing Hints ...................................
429
Launching or Retrieving a Boat or Personal Watercraft ..............................
430
Towing Weights and Dimensions ..........
431
Towing a Trailer – Troubleshooting ......
433
Integrated Trailer Brake Controller
What Is the Integrated Trailer Brake Controller ..................................................
434
Integrated Trailer Brake Controller Precautions ..............................................
434
Using the Integrated Trailer Brake Controller ..................................................
434
Adjusting the Integrated Trailer Brake Controller Mode ......................................
436
Integrated Trailer Brake Controller – Troubleshooting .....................................
436
Trailer Sway Control
How Does Trailer Sway Control Work ........................................................................\
438
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Table of Contents

ABOUT THIS PUBLICATION
WARNING: Driving while distracted
can result in loss of vehicle control, crash
and injury. We strongly recommend that
you use extreme caution when using any
device that may take your focus off the
road. Your primary responsibility is the
safe operation of your vehicle. We
recommend against the use of any
hand-held device while driving and
encourage the use of voice-operated
systems when possible. Make sure you
are aware of all applicable local laws
that may affect the use of electronic
devices while driving. WARNING: You risk death, fire, or
serious injury to yourself and others if you
do not follow the instruction highlighted
by the warning symbol.
Thank you for choosing Ford. We
recommend that you take some time to
get to know your vehicle in order to benefit
from greater safety and pleasure from
driving it. Use this publication to familiarize
yourself with the basics and then read the
digital version, that is available in your
vehicle. You can also view the
comprehensive manual through the
FordPass app and through the local Ford
website.
Note: To download the FordPass app, visit
your device's app store.
Note: To find the local Ford website, visit
ht tp s:/ / c orpor a t e .f or d . c om/ oper a tions/
l oc a tions/ gl ob al-link s.html .
Note: Use and operate your vehicle in line
with all applicable laws and regulations.
Note: Pass on all printed owner ’s
information when selling this vehicle. Our digital resources include a
comprehensive digital Owner
’s Manual
dynamically created according to the
features on your vehicle by using the
vehicle identification number. See
Locating the Vehicle Identification
Number
(page 619). The digital Owner ’s
Manual includes visual and full text search
functions so that you can quickly locate
the information you are looking for. It also
includes links to a number of how-to
videos created to help you understand
some of the advanced technologies on
your vehicle.
Features and Options
This publication describes product features
and options available throughout the range
of available models, sometimes even
before they are generally available. It could
describe options that are not available on
the vehicle you have purchased.
Illustrations
Some of the illustrations in this publication
could show features as used in different
models, so they could appear different to
you on your vehicle.
Location of Components
This manual may qualify the location of a
component as left-hand side or right-hand
side. The side is determined when facing
forward in the seat.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Introduction

Fuse compartment
Hazard flashers
Heated rear window
Windshield defrosting system
Interior luggage compartment
release
Jack
Keep out of reach of children
Lighting control
Low tire pressure warning
Maintain correct fluid level
Note operating instructions
Horn control
Panic alarm
Parking aid
Passenger airbag activated Passenger airbag deactivated
Power steering fluid
Power windows front/rear
Power window lockout
Requires registered technician
Safety alert
See Owner's Manual
See Service Manual
Malfunction Indicator Lamp
(MIL)
Side airbag
Shield the eyes
Stability control
Hill descent control
Trail control
Windshield wiping system
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Symbols Glossary E161353 E270945 E139213 E270849 E270850 E231159 E65963 E231158 E167012 E138639 E163171 E332910 E270969

7.
Pull the seatbelt out of the retractor to
make sure the retractor is in the
automatic locking mode. You should
not be able to pull more belt out. If the
retractor is not locked, unbuckle the
belt and repeat Steps 5 and 6. 8.
Remove remaining slack from the belt.
Force the seat down with extra weight,
for example, by pressing down or
kneeling on the child restraint while
pulling up on the shoulder belt in order
to force slack from the belt. This is
necessary to remove the remaining
slack that exists once you add the extra
weight of the child to the child restraint.
It also helps to achieve the proper
snugness of the child restraint to your
vehicle. Sometimes, a slight lean
toward the buckle helps to remove
remaining slack from the belt.
9. If the child restraint has a tether strap, attach it. 10. Before placing the child in the seat,
forcibly move the seat forward and
back to make sure the seat is securely
held in place.
To check this, grab the seat at the belt path
and attempt to move it side to side and
forward and back. There should be no
more than 1 in (2.5 cm) of movement.
We recommend checking with a NHTSA
Certified Child Passenger Safety
Technician to make certain the child
restraint is properly installed. In Canada,
check with Transport Canada for referral
to a Child Car Seat Clinic.
Using Seatbelts WARNING:
Always use both the
lap and shoulder portion of the seatbelt
in the center seating position.
Note: The following applies to the front
center position of Super Cab and Crew Cab
vehicles.
The seatbelt webbing below the tongue is
the lap portion of the seatbelt. The
webbing above the tongue is the shoulder
belt portion of the seatbelt.
1. Position the child restraint in the front center seat.
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A seatbelt warning light and
chime.
Crash sensors and monitoring
system with readiness indicator.
The seatbelt pretensioners are designed
to tighten the seatbelts when activated. In
frontal and near-frontal crashes, the
seatbelt pretensioners may be activated
alone or, if the crash is of sufficient severity,
together with the front airbags. In side
crashes and rollovers, the pretensioners
will be activated when the Safety Canopy
is activated.
FASTENING AND
UNFASTENING THE
SEATBELTS
This applies to all seating positions, except
for the front center position of Super Cab
and Crew Cab. 1. Insert the seatbelt tongue into the
buckle until you hear a snap and feel it
latch. 2. Press the button to release the
seatbelt.
Using the Seatbelt With Cinch
Tongue
This applies to the front center seating
position of Super Cab and Crew Cab.
The cinch tongue slides up and down the
seatbelt webbing when you stow the
seatbelt or when you put the seatbelts on.
When you buckle the seatbelt, the cinch
tongue allows you to shorten the lap
portion, but pinches the webbing to keep
the lap portion from getting longer. The
cinch tongue is designed to slip during a
crash, so wear the shoulder belt properly
and do not allow any slack in either the lap
or shoulder portions.
Fastening the Cinch Tongue WARNING: Always drive and ride
with your seatback upright and the lap
belt snug and low across the hips.
1. Pull the seatbelt from the retractor so that the shoulder belt portion of the
seatbelt crosses your shoulder and
chest.
2. Make sure the belt is not twisted. If the
belt is twisted, remove the twist.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing SeatbeltsE71880 E67017 E142587 E142588

SEATBELT REMINDER
INDICATORS
A warning lamp illuminates if the ignition
is on, a front seat is occupied and the
seatbelt has not been fastened.
The warning lamp illuminates
until you fasten your seatbelt.
SEATBELT REMINDER AUDIBLE
WARNINGS
A warning tone sounds if the warning lamp
illuminates and your vehicle exceeds a
relatively low speed.
The warning tone sounds for up to five
minutes or until you fasten your seatbelt.
SWITCHING THE SEATBELT
REMINDER ON AND OFF WARNING: While the system
allows you to deactivate it, this system
is designed to improve your chances of
being safely belted and surviving an
accident. We recommend you leave the
system activated for yourself and others
who may use the vehicle.
Note: The driver and front passenger
warnings switch off independently. When
you perform this procedure for one seating
position, do not buckle the other position as
this cancels the process.
Note: If you are using MyKey, you cannot
disable the seatbelt reminder. Also, if the
seatbelt reminder has been previously
disabled, it will be re-enabled during the use
of MyKey. See
MyKey â„¢ (page 98).
Read Steps 1 - 4 before proceeding with
the programming procedure. Make sure that:
•
The parking brake is set.
• The transmission is in park (P).
• The ignition is off.
• The driver and front passenger
seatbelts are unfastened.
1. Switch the ignition on. Do not start the
engine.
2. Wait about one minute until the seatbelt warning light switches off.
After Step 2, wait an additional five
seconds before proceeding with Step
3. Once you start Step 3, you must
complete the procedure within 30
seconds.
3. For the seating position you are switching off, buckle then unbuckle the
seatbelt three times at a moderate
speed, ending in the unbuckled state.
After Step 3, the seatbelt warning light
switches on.
4. When the seatbelt warning light is on, buckle then unbuckle the seatbelt.
After Step 4, the seatbelt warning light
flashes for confirmation.
This switches the feature off for that
seating position if it is currently on.
This switches the feature on for that
seating position if it is currently off.
CHECKING THE SEATBELTS
Check the seatbelts and child restraints
periodically to make sure they work
properly and are not damaged. Make sure
there are no nicks, tears or cuts. Replace if
necessary.
Check the following seatbelt assemblies
after a crash.
• Retractors.
• Buckles.
• Front seatbelt buckle assemblies.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing SeatbeltsE71880

WHAT IS THE PERSONAL
SAFETY SYSTEM
An advanced safety system that protects
occupants in frontal crashes.
HOW DOES THE PERSONAL
SAFETY SYSTEM WORK
This system provides an improved level of
frontal crash protection to front seat
occupants and is designed to reduce the
risk of airbag-related injuries. The system
analyzes occupant conditions and crash
severity before activating the appropriate
safety devices. During a crash, the
restraints control module may deploy the
seatbelt pretensioners, and one or both
stages of the dual-stage airbags based on
crash severity and occupant conditions.
PERSONAL SAFETY SYSTEM
COMPONENTS
•
Driver and passenger dual-stage airbag
supplemental restraints.
• Front seat outermost seatbelts with
pretensioners, energy management
retractors and seatbelt usage sensors.
• Front passenger sensing system.
• Passenger airbag off and on indicators.
• Front crash severity sensors.
• Restraints control module with impact
and safing sensors.
• Restraint system warning light and
tone.
• The electrical wiring for the airbags,
crash sensors, seatbelt pretensioners,
front seatbelt usage sensors, front
passenger sensing system and
indicator lights.
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â„¢

WARNING: Keep the areas in front
of the airbags free from obstruction. Do
not affix anything to or over the airbag
covers. Objects could become projectiles
during airbag deployment. Failure to
follow this instruction could result in
personal injury or death. WARNING:
To reduce risk of injury,
do not obstruct or place objects in the
deployment path of the airbag. WARNING:
Do not place a
rearward facing child restraint in front of
an active airbag. Failure to follow this
instruction could result in personal injury
or death. WARNING:
Do not attempt to
service, repair, or modify the
supplementary restraint system or
associated components. Failure to
follow this instruction could result in
personal injury or death. WARNING:
Several airbag system
components get hot after inflation. To
reduce the risk of injury, do not touch
them after inflation. WARNING:
If a supplementary
restraint system component has
deployed, it will not function again. Have
the system and associated components
inspected as soon as possible. Failure to
follow this instruction could result in
personal injury or death. PROPERLY ADJUSTING THE
DRIVER AND FRONT
PASSENGER SEATS WARNING:
National Highway
Traffic Safety Administration (NHTSA)
recommends a minimum distance of at
least
10 in (25 cm) between an
occupant's chest and the driver airbag
module.
To properly position yourself away from
the airbag:
• Move your seat to the rear as far as you
can while still reaching the pedals
comfortably.
• Recline the seat slightly one or two
degrees from the upright position.
After all occupants have adjusted their
seats and put on seatbelts, it is very
important that they continue to sit
properly. Properly seated occupants sit
upright, lean against the seat backrest, and
center themselves on the seat cushion,
with their feet comfortably extended on
the floor. Sitting improperly can increase
the chance of injury in a crash event. For
example, if an occupant slouches, lies
down, turns sideways, sits forward, leans
forward or sideways, or puts one or both
feet up, the chance of injury during a crash
greatly increases.
CHILDREN AND AIRBAGS WARNING:
Do not place a
rearward facing child restraint in front of
an active airbag. Failure to follow this
instruction could result in personal injury
or death.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Airbags

•
Pull your vehicle over.
• Switch your vehicle off.
• Check for any objects lodged
underneath the front passenger seat
or cargo interfering with the seat.
• Remove the obstruction if found.
• Restart your vehicle.
• Wait at least two minutes and verify
that the airbag readiness light in the
instrument cluster is no longer
illuminated.
• If the airbag readiness light in the
instrument cluster remains illuminated,
there may be a problem due to the
front passenger sensing system.
Do not attempt to repair or service the
system. Take your vehicle in for service
immediately.
If it is necessary to modify an advanced
front airbag system to accommodate a
person with disabilities, contact your
Customer Relationship Center. See
Contacting Us (page 22). FRONT PASSENGER SENSING
SYSTEM PRECAUTIONS WARNING:
Sitting improperly, out
of position or with the seatback reclined
too far can take weight off the seat
cushion and affect the decision of the
passenger sensing system, resulting in
serious injury or death in the event of a
crash. Always sit upright against your
seat back, with your feet on the floor. WARNING:
Any alteration or
modification to the front passenger seat
may affect the performance of the front
passenger sensing system. This could
seriously increase the risk of injury or
death.
FRONT PASSENGER SENSING SYSTEM INDICATORS Passenger Airbag
Passenger Airbag Status
Indicator
Occupant
Disabled
OFF: Illuminated
Empty
ON: Not Illuminated Disabled
OFF: Illuminated
Child
ON: Not Illuminated Enabled
OFF: Not Illuminated
Adult
ON: Illuminated
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Airbags

CRASH SENSORS AND
AIRBAG INDICATOR
WARNING: Modifying or adding
equipment to the front of your vehicle
could affect the performance of the
airbag system, increasing the risk of
injury. This includes the hood, bumper
system, frame, front body structure, tow
hooks, hood pins, push bar and
snowplows.
Your vehicle has a collection of crash and
occupant sensors. These sensors provide
information to the restraints control
module which activates the following:
• Front seatbelt pretensioners.
• Driver airbag.
• Passenger airbag.
• Knee airbag(s).
• Seat mounted side airbags.
• Safety Canopy.
Based on the type of crash, the restraints
control module deploys the appropriate
safety devices.
The restraints control module also
monitors the readiness of the above safety
devices plus the crash and occupant
sensors. The readiness of the safety
system is indicated by a warning indicator
light in the instrument cluster or by a
backup tone if the warning light is not
working. Routine maintenance of the
airbag is not required.
A difficulty with the system is indicated by
one or more of the following: The readiness light will not
illuminate immediately after you
switch the ignition on. •
The readiness light either flashes or
stays on.
• You hear a series of five tones. The
tone pattern repeats periodically until
the problem, the light or both are
repaired.
If any of these things happen, even
intermittently, have the supplemental
restraint system serviced immediately.
Unless serviced, the system may not
function properly in the event of a crash.
The fact that the seatbelt pretensioners
or front airbags did not activate for both
front seat occupants in a crash does not
mean that something is wrong with the
system. Rather, it means the restraints
control module determined the accident
conditions (crash severity, seatbelt usage)
were not appropriate to activate these
safety devices.
• The front airbags activate only in
frontal and near-frontal crashes. Front
airbags may activate in rollovers, side
impacts or rear impacts if the crash
causes sufficient frontal deceleration.
• The seatbelt pretensioners activate in
frontal, near-frontal and side crashes,
and in rollovers.
• The knee airbag(s) deploy based on
crash severity and occupant conditions.
• The side airbags inflate in certain side
impact crashes or rollover events. Side
airbags may activate in other types of
crashes if the vehicle experiences
sufficient sideways motion or
deformation.
• The Safety Canopy inflates in certain
side impact crashes or rollover events.
The Safety Canopy may activate in
other types of crashes if the vehicle
experiences sufficient sideways motion
or deformation, or a certain likelihood
of rollover.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing AirbagsE67017