2021 FORD F-150 warning light

•
Bend your legs slightly so that you can
press the pedals fully.
• Position the shoulder strap of the
seatbelt over the center of your
shoulder and position the lap strap
tightly across your hips.
Make sure that your driving position is
comfortable and that you can maintain full
control of your vehicle.
MANUAL SEATS (IF EQUIPPED)
HEAD RESTRAINT COMPONENTS The head restraints consist of:
An energy absorbing head
restraint.
A
Two steel stems.
B
Guide sleeve adjust and release
button.
C
Guide sleeve unlock and remove
button (If equipped).
D ADJUSTING THE HEAD
RESTRAINT WARNING:
Fully adjust the head
restraint before you sit in or operate your
vehicle. This will help minimize the risk
of neck injury in the event of a crash. Do
not adjust the head restraint when your
vehicle is moving. WARNING:
The head restraint is a
safety device. Whenever possible it
should be installed and properly
adjusted when the seat is occupied.
Failure to adjust the head restraint
properly could reduce its effectiveness
during certain impacts. WARNING:
Adjust the head
restraints for all passengers before you
drive your vehicle. This will help minimize
the risk of neck injury in the event of a
crash. Do not adjust the head restraints
when your vehicle is moving.
Note: Adjust the seat backrest to an upright
driving position before adjusting the head
restraint. Adjust the head restraint so that
the top of it is level with the top of your head
and as far forward as possible. Make sure
that you remain comfortable. If you are
extremely tall, adjust the head restraint to
its highest position.
Pull the head restraint up to raise it.
To lower the head restraint:
1. Press and hold the adjust and release button.
2. Push the head restraint down.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Front SeatsE327921

WHAT IS THE GARAGE DOOR
OPENER
HomeLink Wireless Control
System
The universal garage door opener replaces
the common hand-held garage door
opener with a three-button transmitter
integrated into the driver
’s sun visor.
HOW DOES THE GARAGE
DOOR OPENER WORK
The system includes two primary features,
a garage door opener and a platform for
remote activation of devices within the
home. You can program garage doors as
well as entry gate operators, security
systems, entry door locks and home or
office lighting.
Additional system information can be
found online at www.homelink.com or by
calling the toll-free help line at
1-800-355-3515.
Note: You can program a maximum of
three devices. To change or replace any of
the three devices after it has been initially
programmed, you must first erase the
current settings. See Clearing the Garage
Door Opener (page 212). GARAGE DOOR OPENER
PRECAUTIONS WARNING:
Do not use the system
with any garage door opener that does
not have the safety stop and reverse
feature as required by U.S. Federal
Safety Standards (this includes any
garage door opener manufactured
before April 1, 1982). A garage door
opener which cannot detect an object,
signaling the door to stop and reverse,
does not meet current federal safety
standards. Using a garage door opener
without these features increases the risk
of serious injury or death.
Note: Make sure that the garage door and
security device are free from obstruction
when you are programming. Do not program
the system with your vehicle in the garage.
Note: Make sure you keep the original
remote control transmitter for use in other
vehicles as well as for future system
programming.
Note: We recommend that upon the sale
or lease termination of your vehicle, you
erase the programmed function buttons for
security reasons. See Clearing the Garage
Door Opener
(page 212).
GARAGE DOOR OPENER
LIMITATIONS
Canadian radio-frequency laws require
transmitter signals to time-out (or quit)
after several seconds – which may not be
long enough for HomeLink to pick up the
signal.
U.S. gate operators time-out in the same
manner.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Garage Door Opener
(If Equipped)E188211

2. When the indicator light flashes,
release the buttons.
Note: You cannot erase individual buttons.
REPROGRAMMING THE
GARAGE DOOR OPENER
To program a device to a previously trained
button, follow these steps:
1. Press and hold the desired button. Do NOT release the button.
2. The indicator light begins to flash after
20 seconds. Without releasing the
button, follow programming steps.
GARAGE DOOR OPENER
RADIO FREQUENCIES
FCC and RSS-210 Industry Canada
Compliance WARNING: Changes or
modifications not expressively approved
by the party responsible for compliance
could void the user's authority to operate
the equipment. The term "IC:" before the
radio certification number only signifies
that Industry Canada technical
specifications were met.
This device complies with Part 15 of the
FCC Rules and with RSS-210 of Industry
Canada. Operation is subject to the
following two conditions: (1) this device
may not cause harmful interference, and
(2) this device must accept any
interference received, including
interference that could cause undesired
operation. This equipment complies with FCC
radiation exposure limits set forth for an
uncontrolled environment. End Users must
follow the specific operating instructions
for satisfying RF exposure compliance. This
transmitter must be at least
8 in (20 cm)
from the user and must not be co-located
or operating in conjunction with any other
antenna or transmitter.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Garage Door Opener
(If Equipped)

WHAT IS THE POWER OUTLET
The power outlet can power devices using
a 12 V outlet adapter.
POWER OUTLET
PRECAUTIONS WARNING:
Do not plug optional
electrical accessories into the cigar
lighter socket. Incorrect use of the cigar
lighter can cause damage not covered
by the vehicle warranty, and can result
in fire or serious injury.
When you switch the vehicle on, you can
use the socket to power
12 V appliances
with a maximum current rating of 20 A. Do
not use the power point over the vehicle
capacity of
12 V DC 240 W or a fuse could
blow. Do not plug in any device that
supplies power to the vehicle through the
power points. This could result in damage
to vehicle systems. Do not hang any
accessory from the accessory plug. Always
keep the power point caps closed when
not in use. Do not insert objects other than
an accessory plug into the power point.
To prevent the battery from running out of
charge:
• Do not use the power point longer than
necessary when the vehicle is off.
• Do not leave devices plugged in
overnight or when you park your vehicle
for extended periods. LOCATING THE POWER
OUTLETS
Power outlets are in the following
locations:
•
On the instrument panel.
• Inside the center console.
• On the rear of the center console.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Power Outlet - Vehicles With: 12V Power Outlet

Starting the Engine
Turn the key to position III. Release the
key when the engine starts.
PUSH BUTTON IGNITION
SWITCH
(IF EQUIPPED) Switching the Ignition Off
When the ignition is on or in accessory
mode, press the push button ignition
switch once without your foot on the brake
pedal.
Switching the Ignition to
Accessory Mode
When the ignition is off, press the push
button ignition switch once without your
foot on the brake pedal.
All electrical circuits and accessories are
operational and the warning lamps and
indicators illuminate.
Note:
Your vehicle has a battery saver
feature that shuts your vehicle off when it
detects a certain amount of battery drain,
or after approximately 30 minutes of
inactivity in accessory mode.
Starting the Engine
With the transmission in park (P), press
the brake pedal and press the push button
ignition switch. An indicator light on the
button illuminates when the ignition is on
and when the engine starts. Note:
The system may not function if the
passive key is close to metal objects or
electronic devices, for example keys or a cell
phone.
Note: A valid key must be inside your
vehicle to switch the ignition on and start
the engine.
STARTING THE ENGINE
STARTING A GASOLINE ENGINE -
VEHICLES WITHOUT: PUSH
BUTTON START
Before starting your vehicle, check the
following:
• Make sure that the headlamps and
electrical accessories are off.
• Make sure that the parking brake is on.
• Make sure that the transmission is in
park (P).
1. Fully press the brake pedal.
Note: Do not touch the accelerator pedal. 2. Turn the key to position
III.
Note: The engine may continue cranking
for up to 15 seconds or until it starts.
Note: The engine takes longer to start at
lower temperatures. It may crank for several
seconds when very cold.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Starting and Stopping the EngineE321258 E322354

WHAT IS AUTO-START-STOP
The system is designed to help reduce fuel
consumption and CO
2 emissions by
stopping the engine when it is idling, for
example at traffic lights.
AUTO-START-STOP
PRECAUTIONS WARNING: Apply the parking
brake, shift into park (P), switch the
ignition off and remove the key before
you leave your vehicle. Failure to follow
this instruction could result in personal
injury or death. WARNING:
Apply the parking
brake, shift into park (P), switch the
ignition off and remove the key before
you open the hood or have any service
or repair work completed. If you do not
switch the ignition off, the engine could
restart at any time. Failure to follow this
instruction could result in personal injury
or death.
SWITCHING AUTO-START-
STOP ON AND OFF
The system turns on when you switch the
ignition on. Press the button to switch the
system off.
Note: OFF
illuminates in the switch.
Note: Deactivating the system using the
button lasts only one key cycle.
Press the button again to switch the
system back on. Note:
The system turns off if it detects a
malfunction. If the system malfunctions,
have your vehicle checked as soon as
possible.
STOPPING THE ENGINE
Stop your vehicle, keep your foot on the
brake pedal and the transmission in drive
(D).
Note: Power assist steering turns off when
the engine stops.
RESTARTING THE ENGINE
Release the brake pedal or press the
accelerator pedal.
A message appears in the information
display if the system requires you to take
action.
AUTO-START-STOP
INDICATORS WARNING:
The system may
require the engine to automatically
restart when the auto-start-stop
indicator illuminates green or flashes
amber. Failure to follow this instruction
could result in personal injury. The Auto-Start-Stop indicator
illuminates green when the
engine stops. It flashes amber
and a message appears when you need to
take action. The Auto-Start-Stop indicator
illuminates gray with a
strikethrough when the system
is not available.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Auto-Start-Stop
(If Equipped) E146361

Failure to perform active or manual
regeneration when instructed could result
in a clogged diesel particulate filter. If the
diesel particulate filter fills beyond the
regeneration threshold, your vehicle
disables the ability for active and manual
regeneration. This could result in
irreversible damage your vehicle Warranty
may not cover.
DIESEL PARTICULATE FILTER
REQUIREMENTS
The diesel particulate filter on your vehicle
requires periodic regeneration to maintain
its correct function.
If your journeys meet one of the following
conditions:
•
You drive only short distances.
• You frequently switch the ignition on
and off.
• Your journeys contain a high level of
acceleration and deceleration.
You must carry out occasional trips with
the following conditions to assist the
regeneration process:
• Drive your vehicle in more favorable
conditions, which you will find at higher
vehicle speeds in normal driving, on a
main road or freeway for a minimum
of 20 minutes. This drive may include
short stops that will not affect the
regeneration process.
• Avoid prolonged idling and observe
speed limits and road conditions.
• Do not switch the ignition off.
• Select a suitable gear to ideally
maintain engine speed between 1500
and 3000 RPM. DIESEL PARTICULATE FILTER
MANUAL REGENERATION
WHAT IS DIESEL PARTICULATE
FILTER MANUAL REGENERATION
Diesel particulate filter manual
regeneration allows you to manually start
regeneration of the diesel particulate filter
at idle to clean the filter.
Note:
If you are not sure whether your
vehicle has this feature, contact your
authorized dealer.
DIESEL PARTICULATE FILTER
MANUAL REGENERATION
PRECAUTIONS WARNING: Stay clear of the
exhaust tailpipe during regeneration. Hot
exhaust gases can burn you badly.
You may not be able to use manual
regeneration if the service engine soon
warning lamp appears in the information
display.
Note: During the use of manual
regeneration, you may observe a light
amount of white smoke. This is normal.
DIESEL PARTICULATE FILTER
MANUAL REGENERATION
REQUIREMENTS
You can use the manual regeneration
feature when a message appears in the
information display and you are not able
to drive in a manner that allows effective
automatic active regeneration or if you
choose to manually start the regeneration
of the diesel particulate filter while the
vehicle is idle.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Diesel Particulate Filter
(If Equipped)

To select a four-wheel drive mode, press
the four-wheel drive mode control button
of the desired mode. You can select
two-wheel drive high (2H), four-wheel
drive high (4H), or if your vehicle has
four-wheel drive auto (4A) at a stop or
while driving. Once the shift is complete,
the information display will then display
the selected four-wheel drive mode. While
shifts are in progress, the lights on the
four-wheel drive control switch can flash
and you could see messages in the
information display indicating that a shift
is in progress or to release the accelerator
pedal to improve shift performance.
Note:
Do not perform this operation if the
rear wheels are slipping or while applying
the accelerator pedal.
Note: You could hear some noise as the
system shifts or engages which is normal.
If the system detects a fault, a warning
message appears in the information
display. See Four-Wheel Drive –
Information Messages (page 299).
Shifting to or from Four-Wheel
Drive Low (4L)
To select or exit four-wheel drive low (4L):
1. Bring your vehicle to a speed of
3 mph
(5 km/h) or less.
2. Place the transmission in neutral (N)
3. Press the desired four-wheel drive button on the four-wheel drive mode
control switch.
The information display will display a
message indicating a four-wheel drive shift
is in progress. If any of the above shift
conditions are not present, the shift will
not occur and the information display will
display information guiding the driver
through the proper shifting procedures. If
there is a transfer case tooth blockage a
message will display in the information display. To alleviate this condition, place
the transmission in a forward gear, move
your vehicle forward approximately
5 ft
(1.5 m), and shift the transmission back to
neutral (N) to allow the transfer case to
complete the range shift.
Note: You could hear some noise as the
system shifts or engages which is normal.
If the system detects a fault, a warning
message appears in the information
display.
See Four-Wheel Drive –
Information Messages (page 299).
FOUR-WHEEL DRIVE MODES
TWO-WHEEL DRIVE HIGH
Two-wheel drive high is for general
on-road driving. Power is sent to the rear
wheels only.
Note: Two-wheel drive high can turn on or
off based on Drive Mode selection See Drive
Mode Control
(page 371).
FOUR-WHEEL DRIVE AUTO
(If
Equipped)
Four-wheel drive auto provides
electronically controlled four-wheel drive
power to both the front and rear wheels,
as required, for increased traction in varying
on-road conditions. The four-wheel drive
auto tuning varies based on selected Drive
Mode.
See Selecting a Drive Mode (page
373).
Note: Four-wheel drive auto can turn on or
off automatically based on Drive Mode
selection.
See Selecting a Drive Mode
(page 373).
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Four-Wheel Drive
(If Equipped)