sensor FORD F-150 2021 Workshop Manual

If the system malfunctions, a warning lamp
illuminates in the instrument cluster and
a message appears in the information
display. Have your vehicle checked as soon
as possible.
Note:
If arrows do not display, a message
appears in the information display.
Note: In some conditions, the system could
alert you, even when there is nothing in the
detection zone, for example a vehicle
passing further away from your vehicle.
CROSS TRAFFIC ALERT – TROUBLESHOOTING
CROSS TRAFFIC ALERT – INFORMATION MESSAGES Action
Message
Displays instead of indication arrows whenthe system detects a vehicle. Check for approaching traffic.
Cross Traffic Alert
Indicates blocked cross traffic alert systemsensors. Clean the sensors. If the message continues to appear, have your vehicle checked as soon as possible.
Cross Traffic Not Available Sensor Blocked
See Manual
The system has malfunctioned. Have yourvehicle checked as soon as possible.
Cross Traffic System Fault
Displays if you attach a trailer to yourvehicle.
Cross Traffic Alert Deactivated Trailer
Attached
395
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Cross Traffic Alert (If Equipped)

WARNING: Take additional care if
your vehicle is heavily loaded or you are
towing a trailer. These conditions could
result in reduced performance of this
system. Failure to follow this instruction
could result in the loss of control of your
vehicle, personal injury or death. WARNING:
The system cannot
help prevent all crashes. Do not rely on
this system to replace driver judgment
and the need to maintain a safe distance
and speed. WARNING:
In situations where the
vehicle camera has limited detection
capability, this may reduce system
performance. These situations include
but are not limited to direct or low
sunlight, vehicles at night without tail
lights, unconventional vehicle types,
pedestrians with complex backgrounds,
running pedestrians, partly obscured
pedestrians, or pedestrians that the
system cannot distinguish from a group.
Failure to take care may result in the loss
of control of your vehicle, serious
personal injury or death.
PRE-COLLISION ASSIST
LIMITATIONS - POLICE
RESPONDER
Pre-collision assist depends on the
detection ability of its camera and sensors.
Any obstructions or damage to these areas
can limit detection or prevent the system
from functioning. See
Locating the
Pre-Collision Assist Sensors (page 399).
The system is active at speeds above
3 mph (5 km/h)
. Note:
The pre-collision assist system
automatically disables when you select
four-wheel drive low, manually disable
AdvanceTrac ™, or select rock crawl mode.
Note: Brake support and automatic
emergency braking are active at speeds up
to
75 mph (120 km/h).
Pedestrian Detection Limitations
Pedestrian detection is active at speeds
up to
50 mph (80 km/h).
Pedestrian detection operates optimally
when detected hazards are clearly
identifiable. System performance may
reduce in situations where pedestrians are
running, partly obscured, have a complex
background, or cannot be distinguished
from a group.
PRE-COLLISION ASSIST
LIMITATIONS
Pre-collision assist depends on the
detection ability of its camera and sensors.
Any obstructions or damage to these areas
can limit detection or prevent the system
from functioning. See
Locating the
Pre-Collision Assist Sensors (page 399).
The system is active at speeds above
3 mph (5 km/h)
.
Note: The pre-collision assist system
automatically disables when you select
four-wheel drive low, manually disable
AdvanceTrac ™, or select rock crawl mode.
Note: Brake support and automatic
emergency braking are active at speeds up
to 80 mph (130 km/h). If your vehicle has a
radar sensor included with adaptive cruise
control, then brake support and automatic
emergency braking are active up to the
maximum speed of your vehicle.
397
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Pre-Collision Assist
(If Equipped)

Pedestrian Detection Limitations
Pedestrian detection is active at speeds
up to 50 mph (80 km/h).
Pedestrian detection operates optimally
when detected hazards are clearly
identifiable. System performance may
reduce in situations where pedestrians are
running, partly obscured, have a complex
background, or when the system cannot
distinguish pedestrians from a group.
Intersection Assist
(If Equipped)
If your vehicle comes with a radar sensor
included in adaptive cruise control, the
pre-collision assist system may operate in
a scenario where you are turning across an
oncoming vehicle's path. Detection of
vehicles driving in an oncoming direction
is active if your vehicle is driving at speeds
up to
19 mph (30 km/h). SWITCHING PRE-COLLISION
ASSIST ON AND OFF - POLICE
RESPONDER
To switch the system on or off, use the
touchscreen:
1. Press
Features on the touchscreen.
2. Press
Driver Assistance.
3. Press
Pre-Collision Assist. 4. Switch the feature on or off. You can switch the entire system
off at any time by pressing the
button above the touchscreen.
Adjusting the Pre-Collision Assist
Settings
You can adjust the following settings by
using the touchscreen controls in the
pre-collision assist menu:
• Change alert sensitivity to one of three
possible settings.
• If required, switch automatic
emergency braking on or off.
• If required, switch the entire
pre-collision assist feature on or off.
Note: Automatic emergency braking turns
on every time you switch the ignition on.
SWITCHING PRE-COLLISION
ASSIST ON AND OFF
To switch the system on or off, use the
touchscreen:
1. Press
Features on the touchscreen.
2. Press
Driver Assistance.
3. Press
Pre-Collision Assist.
4. Switch the feature on or off.
Adjusting the Pre-Collision Assist
Settings
You can adjust the following settings by
using the touchscreen controls in the
pre-collision assist menu:
• Change alert and distance alert
sensitivity to one of three possible
settings.
• Switch distance indication and alert on
or off.
• If required, switch automatic
emergency braking on or off.
398
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Pre-Collision Assist
(If Equipped)E309750 E296163

•
If required, switch the entire
pre-collision assist feature on or off.
• If required, switch evasive steering
assist on or off.
Note: Automatic emergency braking and
evasive steering turn on every time you
switch the ignition on.
Note: If your vehicle has a radar sensor, we
recommend that you switch the system off
if you install a snow plow or similar object
in such a way that it may block the radar
sensor. Your vehicle remembers the selected
setting across key cycles.
Note: If you switch automatic emergency
braking off, evasive steering assist switches
off.
LOCATING THE PRE-
COLLISION ASSIST SENSORS
- POLICE RESPONDER Camera.
1 If a message regarding a blocked camera
appears in the instrument cluster display,
something is obstructing the camera
images. With a blocked camera, the
system may not function, or performance
may reduce. See Pre-Collision Assist –
Information Messages (page 404).
Note: Proper system operation requires a
clear view of the road by the camera. Have
any windshield damage in the area of the
camera's field of view repaired.
Note: If your vehicle detects excessive heat
at the camera or a potential misalignment
condition, a message could display in the
information display indicating temporary
sensor unavailability. When operational
conditions are correct, the message
deactivates. For example, when the ambient
temperature around the sensor decreases
or the sensor recalibrates successfully.
LOCATING THE PRE-
COLLISION ASSIST SENSORS Camera.
1.
Radar sensor (if equipped).
2.
399
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Pre-Collision Assist
(If Equipped)1E346800 E328125

If a message regarding a blocked sensor
or camera appears in the information
display, something is obstructing the radar
signals or camera images. The radar sensor
is behind the fascia cover in the center of
the lower grille. With a blocked sensor or
camera, the system may not function, or
performance may reduce. See
Pre-Collision Assist – Information
Messages (page 404).
Note: Proper system operation requires a
clear view of the road by the camera. Have
any windshield damage in the area of the
camera's field of view repaired.
Note: If something hits the front end of your
vehicle or damage occurs and your vehicle
has a radar sensor, the radar sensing zone
could change. This could cause missed or
false vehicle detections. Have your vehicle
serviced to have the radar checked for
proper coverage and operation. Note:
If your vehicle detects excessive heat
at the camera or a potential misalignment
condition, a message could display in the
information display indicating temporary
sensor unavailability. When operational
conditions are correct, the message
deactivates. For example, when the ambient
temperature around the sensor decreases
or the sensor recalibrates successfully.
DISTANCE INDICATION
(IF
EQUIPPED)
WHAT IS DISTANCE INDICATION
Distance indication displays the gap
between your vehicle and the vehicle
ahead of you.
Note: The graphic does not display if you
switch on cruise control or adaptive cruise
control. Time Gap
Distance Gap
Distance Indic-
ator Color
System Sensit-
ivity
Vehicle Speed
Greater than 0.9seconds.
Greater than
82 ft (25 m)
.
Gray.
Normal.
62 mph
(100 km/h).
0.6-0.9
seconds.
56–82 ft
(17 –25 m)
.
Yellow.
Less than 0.6seconds.
Less than
56 ft
(17 m).
Red.
400
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Pre-Collision Assist
(If Equipped)

PRE-COLLISION ASSIST – INFORMATION MESSAGES
Action
Message
You have a blocked sensor due to bad
weather, ice, mud or water in front of the radar sensor. You can typically clean the sensor to resolve.
Pre-Collision Assist Not Available Sensor
Blocked
A fault with the system has occurred. Haveyour vehicle checked as soon as possible.
Pre-Collision Assist Not Available
404
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Pre-Collision Assist (If Equipped)

WHAT IS DRIVER ALERT
Driver alert alerts you if it determines that
you are becoming drowsy or if your driving
deteriorates.
HOW DOES DRIVER ALERT
WORK
Driver Alert calculates your alertness level
based on your driving behavior in relation
to the lane markings and other factors
through use of the front camera sensor
behind the interior mirror.
DRIVER ALERT 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: Take regular rest
breaks if you feel tired. Do not wait for
the system to warn you. WARNING:
Certain driving styles
may result in the system warning you
even if you are not feeling tired. WARNING:
In cold and severe
weather conditions the system may not
function. Rain, snow and spray can all
limit sensor performance. WARNING:
The system will not
operate if the sensor cannot track the
road lane markings. WARNING:
If damage occurs in the
immediate area surrounding the sensor,
have your vehicle checked as soon as
possible. WARNING:
The system may not
correctly operate if your vehicle is fitted
with a suspension kit not approved by
us. WARNING:
The system may not
operate properly if the sensor is blocked.
Keep the windshield free from
obstruction.
Note: If something is blocking the camera
or damaged the windshield, Driver Alert may
not function.
DRIVER ALERT LIMITATIONS
Driver alert may not function correctly if:
• The sensor cannot track the road lane
markings.
• Your vehicle's speed is less than
approximately
40 mph (65 km/h).
SWITCHING DRIVER ALERT ON
AND OFF
1. Press
Features on the touchscreen.
407
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Driver Alert
(If Equipped)E309385

WHAT IS SPEED SIGN
RECOGNITION
Speed sign recognition detects speed limit
signs to inform you of the current speed
limit. Detected speed signs appear in the
information display.
HOW DOES SPEED SIGN
RECOGNITION WORK
Speed sign recognition uses a sensor
behind the interior mirror to detect speed
signs.
If your vehicle has speed sign recognition
with navigation, stored speed sign data
may influence the indicated speed limit
value.
SPEED SIGN RECOGNITION
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: In cold and severe
weather conditions the system may not
function. Rain, snow and spray can all
limit sensor performance. WARNING:
The system may not
operate properly if the sensor is blocked.
Keep the windshield free from
obstruction. Note:
Do not carry out windshield repairs
in the immediate area surrounding the
sensor.
Note: If your vehicle has a suspension kit
not approved by us, the system may not
correctly function.
Note: The system may not detect all speed
signs and may incorrectly read signs.
Note: Always fit our original parts when
replacing headlamp bulbs. Other bulbs may
reduce system performance.
SPEED SIGN RECOGNITION
LIMITATIONS
Speed sign recognition may not operate
correctly due to:
• Outdated map data.
• Incorrect recognition of speed limits by
the sensor of signs on parallel roads or
exit ramps.
• Missed recognition of faded, dirty, or
distorted signs.
SPEED SIGN RECOGNITION
INDICATORS When the system detects a speed limit
sign, it appears in the information display.
409
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Speed Sign Recognition
(If Equipped)E317824

CONNECTING A TRAILER – TROUBLESHOOTING
CONNECTING A TRAILER – INFORMATION MESSAGES
Description
Message
The system senses a trailer connection
becomes disconnected, either intentionally or unintentionally, during a given ignition cycle.
Trailer Disconnected
There are certain faults in your vehicle
wiring and trailer wiring or brake system.
Trailer Wiring Fault
There is a fault with your trailer battery, oryour trailer battery voltage is very low.
Trailer Battery Not Charging See Manual
One or more tires on your trailer is belowthe specified tire pressure.
Trailer Tire Low Specified:
Displays when one or more tires on the
trailer is above the recommended temper- ature.
Trailer Tire Over Temperature
A trailer tire pressure sensor is malfunc-
tioning. If the warning stays on or continues to come on, have the system checked as soon as possible.
Trailer Tire Pressure Sensor Fault
The trailer tire pressure monitoring systemis malfunctioning. If the warning stays on
or continues to come on, have the system checked.
Trailer Tire Pressure Monitor Fault
The system cannot detect the trailer tirepressure monitoring system.
Trailer Tire Pressure Monitor Capability Not
Detected
The trailer tire pressure monitoring systemis not setup.
Trailer Tire Pressure Indication Not Setup
See Manual
427
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Connecting a Trailer

TOWING A TRAILER – TROUBLESHOOTING
TOWING A TRAILER – INFORMATION MESSAGES
Details
Message
The left-hand trailer turn lamp requiresservice.
Trailer Left Turn Lamps Fault Check Lamps
The right-hand trailer turn lamp requiresservice.
Trailer Right Turn Lamps Fault Check
Lamps
The trailer battery voltage is too low to
charge. If there is no trailer attached, the vehicle battery voltage is low.
Trailer Battery Not Charging See Manual
The system detects a short created by thetrailer lamps. Inspect and repair the trailer
wiring, or have the system checked as soon as possible.
Trailer Lighting Module Fault See Manual
The trailer stoplamps require service.
Trailer Stop Lamps Fault Check Lamps
The trailer sway control detects trailersway. Reduce the vehicle's speed.
Trailer Sway Reduce Speed
Displays when one or more tires on the
trailer is above the recommended temper- ature.
Trailer Tire Over Temperature
One or more tires on your trailer is belowthe specified tire pressure.
Trailer Tire Low Specified:
A trailer tire pressure sensor requires
service. If the warning stays on or continues to come on, have the system checked as soon as possible.
Trailer Tire Pressure Sensor Fault
The trailer tire pressure monitoring systemrequires service. If the warning stays on or continues to come on, have the system checked as soon as possible.
Trailer Tire Pressure Monitor Fault
The system cannot detect the trailer tirepressure monitoring system.
Trailer Tire Pressure Monitor Capability Not
Detected
The trailer tire pressure monitoring systemis not setup.
Trailer Tire Pressure Indication Not Setup
See Manual
433
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Towing a Trailer