2021 FORD F-150 brake sensor

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)

Note:
If your vehicle sustains damage to
the bumper or fascia leaving it misaligned
or bent, it could alter the sensing zone
causing inaccurate measurement of
obstacles or false alerts.
Note: Vehicle loading and suspension
changes can impact the angle of the sensors
and may change the normal detection zone
of the system resulting in inaccurate
measurement of obstacles or false alerts.
Note: When you connect a trailer, the
system may detect the trailer and provide
an alert, or the system turns off. If the
system does not turn off, switch the system
off manually after you connect the trailer.
Note: You may experience reduced system
performance on road surfaces that limit
deceleration. For example, roads with ice,
loose gravel, mud or sand.
SWITCHING REVERSE
BRAKING ASSIST ON AND OFF
1. Press Features on the touchscreen. 2. Press
Driver Assistance.
3. Switch
Reverse Brake Assist on or off.
Note: The system is unavailable when rear
parking aid or cross traffic alert is off.
OVERRIDING REVERSE
BRAKING ASSIST
There could be instances when
unexpected or unwanted braking occurs.
Firmly pressing the accelerator pedal or
switching the feature off overrides the
system.
REVERSE BRAKING ASSIST
INDICATORS
If the system determines that a collision
with an obstacle may occur, full braking
may apply. Bring your vehicle to a stop a
safe distance away from the obstacle. A message and warning
indicator appear when the
system applies the brakes.
REVERSE BRAKING ASSIST – TROUBLESHOOTING
REVERSE BRAKING ASSIST – INFORMATION MESSAGES Action
Message
Make sure that all doors, liftgate and hoodare closed. Drive the vehicle on a straight road for a short period. Make sure the
parking aids and cross traffic alert systems
are on. If the message remains on, have the system checked as soon as possible.
Reverse Brake Assist Not Available See
Manual
Displays when a system error has occurred.Have your vehicle checked as soon as possible.
Reverse Brake Assist Fault
Displays when reverse brake assist is off.
Reverse Brake Assist Off
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Reverse Braking Assist
(If Equipped)E293490

PARKING AID PRECAUTIONS
WARNING: To help avoid personal
injury, always use caution when in
reverse (R) and when using the sensing
system. WARNING:
The system may not
detect objects with surfaces that absorb
reflection. Always drive with due care
and attention. Failure to take care may
result in a crash. WARNING: Traffic control systems,
fluorescent lamps, 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:
The system may not
detect small or moving objects,
particularly those close to the ground. WARNING:
The parking aid system
can only assist you to detect objects
when your vehicle is moving at parking
speeds. To help avoid personal injury you
must take care when using the parking
aid system. WARNING:
The system may not
function if the sensor is blocked. WARNING:
In cold and severe
weather conditions the system may not
function. Rain, snow and spray can all
limit sensor performance. WARNING:
If damage occurs in the
immediate area surrounding the sensor,
have your vehicle checked as soon as
possible. Note:
If your vehicle sustains damage
leaving the sensors misaligned, this will
cause inaccurate measurements or false
alerts.
When you connect a trailer to your vehicle,
the rear parking aid detects the trailer and
provides an alert. Disable the parking aid
when you connect a trailer to prevent the
alert.
Note: Certain add-on devices installed
around the bumper or fascia may create
false alerts, for example, large trailer
hitches, bike or surfboard racks, license plate
brackets, bumper covers or any other device
that could block the normal detection zone
of the parking aid system. Aftermarket spare
tires or spare tire covers mounted to the rear
tailgate could cause false alerts from the
park aid system. Remove the add-on device
to prevent false alerts.
Note: Keep the sensors free from snow, ice
and large accumulations of dirt. If the
sensors are covered, the system's accuracy
can be affected.
Do not clean the sensors with sharp
objects.
Note: When using a programmed MyKey,
you cannot switch the parking aids off. See
MyKey ™
(page 98).
REAR PARKING AID
(IF EQUIPPED)
WHAT IS THE REAR PARKING AID
Rear parking sensors detect objects behind
your vehicle when in reverse (R).
REAR PARKING AID LIMITATIONS
There is a decreased coverage area at the
outer corners.
When using a programmed MyKey, you
cannot switch the rear parking aid off.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Parking Aids
(If Equipped)

If your vehicle is in any forward gear, the
front parking aid provides audible warnings
and visual indication when your vehicle is
moving at a speed of 5 mph (8 km/h) or
below and the system detects an object
within the detection zone. Once your
vehicle reaches a stop, the visual indication
and audio warning stops after a few
seconds.
If your vehicle is in neutral (N), the front
and rear sensors provide visual indication
only when your vehicle is moving below a
speed of
5 mph (8 km/h) and obstacles
are detected inside the detection areas.
Once your vehicle stops, the visual
indication and audio warning stops after
a few seconds.
LOCATING THE FRONT PARKING
AID SENSORS The front parking aid sensors are in the
front bumper.
FRONT PARKING AID AUDIBLE
WARNINGS
A warning tone sounds when there is an
object within
28 in (70 cm) from the front
bumper. As your vehicle moves closer to
an object, the rate of the tone increases. The warning tone continuously sounds
when an object is 12 in (30 cm) or less from
the front bumper.
Note:
If the detected object is 12 in (30 cm)
or less from your vehicle, visual indication
remains on.
SIDE PARKING AID
(IF EQUIPPED)
WHAT IS THE SIDE PARKING AID
The front and rear outermost parking aid
sensors map objects that are near to the
sides of your vehicle.
SIDE PARKING AID LIMITATIONS
The sensor coverage is up to 24 in (60 cm)
from the sides of your vehicle.
The side parking aid may not function if:
• Your vehicle remains stationary for over
two minutes.
• The anti-lock brake system activates.
• The traction control system activates.
• Your vehicle is in park (P).
• The steering wheel angle information
is not available. You must drive at least
492 ft (150 m)
above 19 mph
(30 km/h) to reset the steering wheel
angle information.
Note: If you switch traction control off, the
side sensing system also turns off.
To reinitialize the system, drive the length
of your vehicle.
The side parking aid does not detect an
object that is moving toward the side of
your vehicle, for example another vehicle
moving at a low speed, if it does not pass
a front or rear parking aid sensor.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Parking Aids
(If Equipped)E310332

3. Select parallel park exit.
4. Use the turn signal to choose the
direction to exit the parking space.
5. Press and hold the brake pedal.
6. Release the steering wheel and shift into neutral (N).
7. Release the parking brake.
8. Press and hold the active park assist button.
9. Release the brake pedal to allow your vehicle to move.
Note: After active park assist drives your
vehicle to a position where you can exit the
parking space in a forward movement, a
message appears instructing you to take full
control of your vehicle.
10. Take control of your vehicle.
Note: You can slow down your vehicle at
any time by pressing the brake pedal. ACTIVE PARK ASSIST –
TROUBLESHOOTING
ACTIVE PARK ASSIST –
INFORMATION MESSAGES Action
Message
The system
requires service.
Have your vehicle
checked as soon as possible.
Active Park Fault
ACTIVE PARK ASSIST –
FREQUENTLY ASKED QUESTIONS
Why does active park assist not
operate correctly? The system is unable to detect a
vehicle, curb or object to park next to
or in between. The system needs
boundary objects to operate correctly.
Why does active park assist not search
for a parking space? You have switched traction control off.
Why does active park assist not search
for a parking space? The transmission is in reverse (R). Your
vehicle must be moving forward to be
able to detect a parking space.
Why does active park assist not offer
a parking space? The sensors could be blocked. For
example, snow, ice or large
accumulations of dirt. Blocked sensors
can affect how the system functions.
Why does active park assist not offer
a parking space? The sensors in the front or rear bumper
could be damaged.
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Active Park Assist (If Equipped)

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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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Adaptive Cruise Control
(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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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Adaptive Cruise Control
(If Equipped)E71621 E144529