2021 FORD F-150 light

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)

•
Avoid spilling diesel exhaust fluid on
painted surfaces, carpeting or plastic
components. Immediately wipe away
any diesel exhaust fluid that has spilled
with a damp cloth and water. If it has
already crystallized, use warm water
and a sponge.
• Do not store the diesel exhaust fluid
bottle in your vehicle. If it leaks it could
cause damage to interior components
or release an ammonia odor inside your
vehicle.
• Do not re-use the diesel exhaust fluid
container once it is emptied.
• Store diesel exhaust fluid out of direct
sunlight and in temperatures between
23–68°F (-5– 20°C).
• The system has a diesel exhaust fluid
quality sensor. Dilution of diesel
exhaust fluid or use of any other liquid
in the selective catalytic reduction
system leads to a diesel exhaust fluid
system fault, eventually leading to the
vehicle only operating in idle-only
mode.
• Do not dilute diesel exhaust fluid with
water or any other liquid. FILLING THE SELECTIVE
CATALYTIC REDUCTION
SYSTEM TANK
FILLING THE SELECTIVE
CATALYTIC REDUCTION SYSTEM
TANK IN COLD WEATHER
Diesel exhaust fluid may freeze if the
ambient temperature is below 12°F (-11°C).
Your vehicle has a preheating system
which allows diesel exhaust fluid to
operate below
12°F (-11°C). If you do not
use your vehicle for an extended period
when the ambient temperature is below
12°F (-11°C)
, the fluid in the tank may
freeze. If the tank is overfilled and the fluid
freezes it may cause damage that your
Warranty will not cover.
FILLING THE SELECTIVE
CATALYTIC REDUCTION SYSTEM
TANK USING A FUEL STATION
PUMP
Filling the diesel exhaust fluid tank using
a fuel station pump is similar to refueling
your vehicle.
1. Fully open the fuel filler door. 2. Remove the diesel exhaust fluid tank
filler cap.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Selective Catalytic Reduction System - Diesel
(If Equipped)E328788

Note:
The diesel exhaust fluid tank has a
blue filler cap.
3. Fully insert the diesel exhaust fluid pump nozzle. 4.
Operate the diesel exhaust fluid pump
nozzle within the area shown.
Note: The pump nozzle shuts off when the
tank is full.
5. Slightly raise the diesel exhaust fluid pump nozzle and then slowly remove
it.
6. Replace the diesel exhaust fluid tank filler cap. Turn it clockwise until you
feel a strong resistance and it clicks.
FILLING THE SELECTIVE
CATALYTIC REDUCTION SYSTEM
TANK USING A PORTABLE
CONTAINER
The following procedure applies to
Motorcraft diesel exhaust fluid or similar
fluid containers. Follow the
manufacturer's instructions.
1. Fully open the fuel filler door.
2. Remove the diesel exhaust fluid container cap.
3. Place the spout on to the container and
tighten it until you feel a strong
resistance. 4. Remove the diesel exhaust fluid tank
filler cap.
Note: The diesel exhaust fluid tank has a
blue filler cap.
5. Insert the spout into the filler neck until
the seal on the spout fully seats.
6. Pour the fluid into the tank.
Note: The fluid stops flowing when the tank
is full.
7. Return the container to the vertical position slightly below the diesel
exhaust fluid filler neck.
8. Allow any fluid remaining in the spout to drain back into the container.
9. Remove the spout from the diesel exhaust fluid filler neck.
10. Replace the diesel exhaust fluid tank
cap. Turn it clockwise until you feel
a strong resistance and it clicks.
11. Remove the spout from the diesel exhaust fluid container and replace
the cap.
Note: If there is diesel exhaust fluid left in
the container retain it for later use. The
spout is reusable. Wash the spout with
clean water prior to storage. Do not use the
diesel exhaust fluid spout with any other
fluid.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Selective Catalytic Reduction System - Diesel (If Equipped)E328783 E328788

•
Additional noise from the transfer case
or other drive components.
• Difficulty shifting out of a mechanically
locked four-wheel drive mode.
Use of a dissimilar spare wheel and tire
assembly can lead to impairment of the
following:
• Comfort and noise.
• Winter weather driving capability.
• Wet driving capability.
• Four-wheel drive capability.
Mechanical Shift Blocking
On four-wheel drive vehicles with a
mechanically locked four-wheel drive high
mode, the transfer case distributes torque
to the front wheels by mechanically
interlocking the front and rear driveshafts
together. Various external factors can
affect shifting performance of this type of
system including, but not limited to:
• Vehicle acceleration.
• Dissimilar tire sizes.
• Steering input.
If the system detects a mechanical shift
blockage at speed after you select
two-wheel drive high, the message "4x4
Unable to Disengage See Manual", could
display momentarily. If this message
displays, one or more of the following
actions can relieve the mechanical shift
block:
• Momentary acceleration.
• Momentary braking.
• Bringing the vehicle to a stop.
• Shifting the transmission to neutral and
back to drive.
• Shifting the transmission to reverse
and back to drive.
• Driving the vehicle around a tight turn
at a slow speed. SELECTING A FOUR-WHEEL
DRIVE MODE - RAPTOR
The four-wheel drive mode control is on
the instrument panel.
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 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.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Four-Wheel Drive (If Equipped)E308146

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)

WHAT IS REVERSE BRAKING
ASSIST
The system uses sensors on the rear of
your vehicle to detect a possible collision
and applies the brakes to either reduce the
damage from impact, or to assist in
avoiding the collision.
HOW DOES REVERSE
BRAKING ASSIST WORK
Reverse Braking Assist functions when in
reverse (R) and traveling at a speed of
1–
7 mph (1.5– 12 km/h).
If the system detects an obstacle behind
your vehicle, it provides a warning through
the rear parking aid or cross traffic alert
system.
REVERSE BRAKING ASSIST
PRECAUTIONS WARNING: You are responsible for
controlling your vehicle at all times. The
system is designed to be an aid and does
not relieve you of your responsibility to
drive with due care and attention. Failure
to follow this instruction could result in
the loss of control of your vehicle,
personal injury or death. WARNING:
To help avoid personal
injury, always use caution when in
reverse (R) and when using the sensing
system. WARNING:
The system may not
operate properly during severe weather
conditions, for example snow, ice, heavy
rain and spray. Always drive with due
care and attention. Failure to take care
may result in a crash. WARNING: Traffic control systems,
inclement weather, air brakes, external
motors and fans may affect the correct
operation of the sensing system. This
may cause reduced performance or false
alerts. WARNING:
Some situations and
objects prevent hazard detection. For
example low or direct sunlight, inclement
weather, unconventional vehicle types,
and pedestrians. Apply the brakes when
necessary. Failure to follow this
instruction could result in the loss of
control of your vehicle, personal injury or
death. WARNING:
Do not use the system
with accessories that extend beyond the
front or rear of your vehicle, for example
a trailer hitch or bike rack. The system is
not able to make corrections for the
additional length of the accessories.
The system only applies the brakes for a
short period of time when an event occurs.
Act as soon as you notice the brakes apply
in order to remain in control of the vehicle.
Note: Certain add-on devices around the
bumper or fascia may create false alerts.
For example, large trailer hitches, bicycle or
surfboard racks, license plate brackets,
bumper covers or any other device that may
block the normal detection zone of the
system. Remove the add-on device to
prevent false alerts.
Note: The system does not react to small
or moving objects, particularly those close
to the ground.
Note: The system does not operate during
hard acceleration or steering.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Reverse Braking Assist
(If Equipped)

HOW DOES STABILITY
CONTROL WORK
WARNING: Vehicle modifications
involving braking system, aftermarket
roof racks, suspension, steering system,
tire construction and wheel and tire size
may change the handling characteristics
of your vehicle and may adversely affect
the performance of the electronic
stability control system. In addition,
installing any stereo speakers may
interfere with and adversely affect the
electronic stability control system.
Reducing the effectiveness of the
electronic stability control system could
lead to an increased risk of loss of vehicle
control, vehicle rollover, personal injury
and death. WARNING:
Remember that even
advanced technology cannot defy the
laws of physics. It's always possible to
lose control of a vehicle due to
inappropriate driver input for the
conditions. Aggressive driving on any
road condition can cause you to lose
control of your vehicle increasing the risk
of personal injury or property damage.
Activation of the electronic stability
control system is an indication that at
least some of the tires have exceeded
their ability to grip the road; this could
reduce the operator's ability to control
the vehicle potentially resulting in a loss
of vehicle control, vehicle rollover,
personal injury and death. WARNING: You are responsible for
controlling your vehicle at all times. The
system is designed to be an aid and does
not relieve you of your responsibility to
drive with due care and attention. Failure
to follow this instruction could result in
the loss of control of your vehicle,
personal injury or death.
If a driving condition activates either the
stability control or traction control you may
experience the following conditions:
• The stability and traction control light
flashes.
• Your vehicle slows down.
• Reduced engine power.
The stability control system has several
features built into it to help you maintain
control of your vehicle:
Electronic Stability Control
Electronic stability control enhances your
vehicle ’s ability to prevent skids or lateral
slides by applying brakes to one or more
of the wheels individually and, if necessary,
reducing engine power.
Roll Stability Control
Roll stability control enhances your
vehicle ’s ability to prevent rollovers by
detecting your vehicle ’s roll motion and
the rate at which it changes by applying
the brakes to one or more wheels
individually.
Curve Control
Curve control enhances your vehicle ’s
ability to follow the road when cornering
severely or avoiding objects in the roadway.
Curve control operates by reducing engine
power and, if necessary, applying brakes
to one or more of the wheels individually.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Stability Control

Stability Control and Traction Control with Roll Stability Control
Traction Control
System 3
Electronic
Stability
Control 3
Roll Stability
Control 3
Stability Control
OFF Light
Enabled
Enabled 3
Enabled
Illuminated
during bulb check
Default at start-
up
Disabled1
Enabled 3
Enabled
Illuminated
Button pressed
momentarily
Disabled1
Disabled 2
Enabled
Illuminated
Button pressed
and held for 5 - 15 seconds
Disabled1
Disabled
Disabled
Illuminated
Button not
pressed and
transfer case is
switched to 4x4 Low or put into Rock Crawl Mode
1 The Traction Control system can still be enabled but with tighter or looser thresholds.
2 When you press and hold the button, a progress bar will display to show the button hold
time progress.
3 Functions can vary depending on what selectable drive mode the vehicle is currently in.
STABILITY CONTROL
INDICATOR
Stability and Traction Control
Indicator If the indicator does not
illuminate when you switch the
power on, or remains on, this
indicates a malfunction. Have your vehicle
checked by an authorized dealer as soon
as possible.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Stability ControlE138639