2021 FORD F-150 Owners Manual

Why does active park assist not offer
a parking space?
There is not enough room in the
parking space for your vehicle to safely
park.
Why does active park assist not offer
a parking space? There is not enough space for the
parking maneuver on the opposite side
of the parking space.
Why does active park assist not offer
a parking space? The parking space is more than 5 ft
(1.5 m) or less than 2 ft (0.5 m) away
from your vehicle.
Why does active park assist not offer
a parking space? Your vehicle's speed is greater than
22 mph (35 km/h) for parallel parking
or greater than
19 mph (30 km/h) for
perpendicular parking.
Why does active park assist not offer
a parking space? You recently disconnected or replaced
the battery. After you reconnect the
battery you must drive your vehicle on
a straight road for a short period of
time.
Why does active park assist not
correctly position the vehicle into a
parking space? An irregular curb along the parking
space prevents the system from
correctly aligning your vehicle.
Why does active park assist not
correctly position the vehicle into a
parking space? Vehicles or objects bordering the
space could not be correctly parked. Why does active park assist not
correctly position the vehicle into a
parking space?
Your vehicle stopped too far past the
parking space.
Why does active park assist not
correctly position the vehicle into a
parking space? The tires are not correctly installed or
maintained. For example, using a spare
tire, not inflated correctly, improper
size, or of different sizes.
Why does active park assist not
correctly position the vehicle into a
parking space? A repair or alteration changed the
detection capabilities.
Why does active park assist not
correctly position the vehicle into a
parking space? A parked vehicle has a high
attachment. For example, a salt
sprayer, snowplow or moving truck
bed.
Why does active park assist not
correctly position the vehicle into a
parking space? The parking space length, or position
of parked objects, changes after your
vehicle passes the space.
Why does active park assist not
correctly position the vehicle into a
parking space? The temperature around your vehicle
quickly changes. For example, driving
from a heated garage into a cold
outside temperature, or after leaving
a car wash.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Active Park Assist
(If Equipped)

WHAT IS CRUISE CONTROL
Cruise control lets you maintain a set
speed without keeping your foot on the
accelerator pedal.
Requirements
Use cruise control when the vehicle speed
is greater than 15 mph in imperial units and
20 km/h in metric units.
SWITCHING CRUISE CONTROL
ON AND OFF
WARNING: Do not use cruise
control on winding roads, in heavy traffic
or when the road surface is slippery. This
could result in loss of vehicle control,
serious injury or death.
The cruise controls are on the steering
wheel.
Switching Cruise Control On Press the button to activate the
system. When the system
activates, the set speed is equal
to whichever is greater, the current vehicle
speed, or 15 mph when in imperial units or
20 km/h when in metric units. If the speed
is too low, or other conditions are not
correct for cruise control activation, the
system will instead enter standby mode.
Switching Cruise Control Off Press the button when the
system is active or switch the
ignition off.
Note: When you switch cruise control off,
the set speed clears. SETTING THE CRUISE
CONTROL SPEED WARNING:
When you are going
downhill, your vehicle speed could
increase above the set speed. The
system does not apply the brakes.
Drive to the speed you prefer. Press either the SET+ or SET-
buttons to set the current speed.
Take your foot off the accelerator pedal.
Note: The indicator changes color in the
information display.
Changing the Set Speed Press the SET+ button to
increase the set speed in small
increments. Press and hold the
SET+ button to accelerate. Release the
button when you have reached your
preferred speed. Press the SET- button to
decrease the set speed in small
increments. Press and hold the
SET- button to decelerate. Release the
button when you have reached your
preferred speed.
Note: If you accelerate by pressing the
accelerator pedal, the set speed does not
change. When you release the accelerator
pedal, your vehicle returns to the speed that
you previously set.
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CANCELING THE SET SPEED
Press the button, or tap the
brake pedal to cancel the set
speed.
Note: The system remembers the set
speed.
Note: The system cancels if the vehicle
speed drops below 10 mph (16 km/h) under
the set speed when driving uphill.
RESUMING THE SET SPEED Press the button.
CRUISE CONTROL
INDICATORS Illuminates when you switch the
system on.
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HOW DOES ADAPTIVE CRUISE
CONTROL WITH STOP AND GO
WORK
Adaptive cruise control with stop and go
uses radar and camera sensors to maintain
a set gap between your vehicle and the
vehicle in front of you while following it to
a complete stop. Stop and go can also be
set to follow a vehicle directly in front of
you and adjust the set speed, while you are
at a complete stop.
ADAPTIVE CRUISE CONTROL
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: Do not use adaptive
cruise control on winding roads, in heavy
traffic or when the road surface is
slippery. This could result in loss of
vehicle control, serious injury or death. WARNING:
Pay close attention to
changing road conditions such as
entering or leaving a highway, on roads
with intersections or roundabouts, roads
without visible lanes of travel, roads that
are unpaved, or steep slopes. Failure to
follow this instruction could result in the
loss of control of your vehicle, personal
injury or death. WARNING:
The system is not a
crash warning or avoidance system. WARNING:
Do not use the system
when towing a trailer that has
aftermarket electronic trailer brake
controls. Failure to follow this instruction
could result in the loss of control of your
vehicle, personal injury or death. WARNING:
Do not use tire sizes
other than those recommended because
this can affect the normal operation of
the system. Failure to do so may result
in a loss of vehicle control, which could
result in serious injury. WARNING:
Do not use the system
with a snow plow blade installed. WARNING:
Do not use the system
in poor visibility, for example fog, heavy
rain, spray or snow.
When Following a Vehicle WARNING:
When following a
vehicle that is braking, your vehicle does
not always decelerate quickly enough to
avoid a crash without driver intervention.
Apply the brakes when necessary. Failure
to follow this instruction could result in
personal injury or death.
Hilly Condition Usage
Select a lower gear when the system is
active in situations such as prolonged
downhill driving on steep slopes, for
example in mountainous areas.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Adaptive Cruise Control
(If Equipped)

ADAPTIVE CRUISE CONTROL
LIMITATIONS
Sensor Limitations
WARNING: On rare occasions,
detection issues can occur due to the
road infrastructures, for example bridges,
tunnels and safety barriers. In these
cases, the system may brake late or
unexpectedly. At all times, you are
responsible for controlling your vehicle,
supervising the system and intervening,
if required. WARNING:
If the system
malfunctions, have your vehicle checked
as soon as possible. WARNING:
Large contrasts in
outside lighting can limit sensor
performance. WARNING:
The system only warns
of vehicles detected by the radar sensor.
In some cases there may be no warning
or a delayed warning. Apply the brakes
when necessary. Failure to follow this
instruction could result in personal injury
or death. WARNING:
The system may not
detect stationary or slow moving
vehicles below
6 mph (10 km/h). WARNING:
The system does not
detect pedestrians or objects in the road. WARNING:
The system does not
detect oncoming vehicles in the same
lane. WARNING:
The system may not
operate properly if the sensor is blocked.
Keep the windshield free from
obstruction. WARNING:
The sensor may
incorrectly track lane markings as other
structures or objects. This can result in
a false or missed warning. Camera.
1.
Radar sensor.
2.
The camera is on the windshield behind
the interior mirror.
The radar sensor is in the lower grille.
Note: You cannot see the sensor. It is
behind a fascia panel.
Note: Keep the front of your vehicle free of
dirt, metal badges or objects. Vehicle front
protectors, aftermarket lights, additional
paint or plastic coatings could also degrade
sensor performance.
A message displays if something obstructs
the camera or the sensor. When something
blocks the sensor, the system cannot
detect a vehicle ahead and does not
function. See
Adaptive Cruise Control
– Information Messages (page 362).
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(If Equipped)E328125

The radar sensor has a limited field of view.
It may not detect vehicles at all or detect
a vehicle later than expected in some
situations. The lead vehicle image does
not illuminate if the system does not
detect a vehicle in front of you.
Detection Issues Can Occur:
When driving on a different line
than the vehicle in front.
A
With vehicles that edge into your
lane. The system can only detect
these vehicles once they move
fully into your lane.
B
There may be issues with the
detection of vehicles in front
when driving into and coming out
of a bend or curve in the road.
C
In these cases, the system may brake late
or unexpectedly. If something hits the front end of your
vehicle or damage occurs, the
radar-sensing zone may change. This could
cause missed or false vehicle detection.
Optimal system performance requires a
clear view of the road by the windshield
camera.
Optimal performance may not occur if:
•
The camera is blocked.
• There is poor visibility or lighting
conditions.
• There are bad weather conditions.
SWITCHING ADAPTIVE
CRUISE CONTROL ON AND OFF
The cruise controls are on the steering
wheel. See Visual Search (page 34).
Switching Adaptive Cruise Control
On Press the button to activate the
system. When the system
activates, the set speed is equal
to whichever is greater, the current vehicle
speed, or 15 mph when in imperial units or
20 km/h when in metric units. If the speed
is too low, or other conditions are not
correct for adaptive cruise control
activation, the system enters standby
mode. When you are below 15 mph when
in imperial units or 20 km/h when in metric
units, adaptive cruise control does not
activate unless you are following another
vehicle.
The indicator, current gap setting and set
speed appear in the instrument cluster
display.
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(If Equipped)E71621 E144529

Switching Adaptive Cruise Control
Off
Press the button when the
system is in standby mode or
switch the ignition off.
Note: When you switch the system off, the
set speed clears.
ADAPTIVE CRUISE CONTROL
AUTOMATIC CANCELLATION
The system may cancel if:
• The tires lose traction.
• You apply the parking brake.
The system may cancel and set the parking
brake if:
• You unbuckle the seatbelt and open
the driver door after you stop your
vehicle.
• Your vehicle is at a stop continuously
for more than three minutes.
The system may deactivate or prevent
activating when requested if:
• The vehicle has a blocked sensor.
• The brake temperature is too high.
• There is a failure in the system or a
related system.
SETTING THE ADAPTIVE
CRUISE CONTROL SPEED
Drive to the speed you prefer. Press the SET+ or SET- buttons
to set the current speed.
Take your foot off the accelerator pedal. The indicator, current gap setting and set
speed appear in the instrument cluster
display.
A vehicle image illuminates if there is a
vehicle detected in front of you.
Note:
When adaptive cruise control is
active, the speedometer may vary slightly
from the set speed displayed in the
instrument cluster display.
Setting the Adaptive Cruise Speed
from a Complete Stop Press the SET+ or SET- buttons
while keeping the brake pedal
fully depressed.
The set speed adjusts to 20 km/h when in
metric units or 15 mph when in imperial
units.
The indicator, current gap setting and set
speed appear in the instrument cluster
display.
Note: The system activates from a
complete stop only when it detects a lead
vehicle in close proximity.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Adaptive Cruise Control (If Equipped)E144529 E337576

Manually Changing the Set Speed
Press the SET+ button to
increase the set speed in small
increments. Press and hold the
SET+ button to increase set speed in large
increments. Release the button when the
indicated set speed reaches the preferred
speed. Press the SET- button to
decrease the set speed in small
increments. Press and hold the
SET- button to decrease the set speed in
large increments. Release the button when
the indicated set speed reaches the
preferred speed.
You can also press the accelerator or brake
pedal until you reach the speed you prefer.
Press the SET+ or SET- button to select
the current speed as the set speed.
The system may apply the brakes to slow
the vehicle to the new set speed. The set
speed continuously displays in the
instrument cluster display when the
system is active.
SETTING THE ADAPTIVE
CRUISE CONTROL GAP Press the button to cycle
through the four gap settings. The selected gap appears in the
information display as shown by the bars
in the image.
Note:
The gap setting is time dependent
and therefore, the distance adjusts with your
vehicle speed.
Note: It is your responsibility to select a gap
appropriate to the driving conditions.
Adaptive Cruise Control Gap Settings Dynamic
Behavior
Gap Distance
Graphic
Display,
Bars Indic- ated
Between Vehicles
Sport.
Closest.
1
Normal.
Close.
2
Normal.
Medium.
3
Comfort.
Far.
4
Each time you switch the system on, it
selects the last chosen gap setting.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Adaptive Cruise Control (If Equipped) E337576