2021 FORD F-150 brake light

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.
314
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.
321
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Stability Control

WHAT IS TRAIL TURN ASSIST
Trail turn assist can reduce the turning
radius of your vehicle by applying the
brakes to the inside rear wheel in
low-speed, high steering-angle maneuvers.
TRAIL TURN ASSIST
PRECAUTIONS
Note:
Do not use trail turn assist on dry,
hard surfaced roads. Doing so can produce
excessive noise, increase tire wear and may
damage drive line, or braking components.
Trail turn assist is only intended for slippery,
or loose surfaces.
You may hear noise from the anti-lock
brake system while trail turn assist is
active. This is normal operation.
TRAIL TURN ASSIST
LIMITATIONS
Trail turn assist can only be used when the
vehicle ’s four-wheel drive system is in the
four-wheel drive high (4H), or four-wheel
drive low (4L) modes.
Trail Turn Assist cannot be used when the
vehicle ’s rear differential is locked. If the
rear differential has recently been locked
prior to Trail Turn Assist being turned on,
Trail Turn Assist may not activate until it
can confirm that the rear differential is
unlocked.
SWITCHING TRAIL TURN
ASSIST ON AND OFF
You can switch the trail turn assist on or
off from the features section of the vehicle
on screen display.
1. Press Features on the touchscreen.
2. Press
Trail Turn Assist. 3. Switch
Trail Turn Assist on or off.
Switch trail turn assist on when your
vehicle is in four-wheel drive high (4H) or
four-wheel drive low (4L).
The system activates when the:
• Vehicle speed is less than
12 mph
(19.3 km/h).
• Rear differential is fully unlocked.
• Steering wheel is almost fully turned
to the left or right.
Switch trail turn assist off by performing
any of the following:
• Switch trail turn assist off from the
features section of the vehicle on
screen display.
• Select two-wheel drive high, or
four-wheel drive auto.
• Switch on the rear locking differential.
TRAIL TURN ASSIST
INDICATORS When trail turn assist is on, one
of these two indicators will be
displayed, depending on the
direction of the vehicle
’s last
turn. When the feature is on but
not in use, the indicator light will
be gray. When the feature is active the
indicator light will be green.
328
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Trail Turn Assist
(If Equipped)E338899 E338900

WHAT IS HILL DESCENT
CONTROL
Hill descent control allows the driver to set
and maintain vehicle speed while
descending steep slopes in various surface
conditions.
HOW DOES HILL DESCENT
CONTROL WORK
Hill descent control can maintain vehicle
speeds on downhill slopes between
2
– 20 mph (3– 32 km/h). Above 20 mph
(32 km/h), the system remains on but the
descent speed cannot be set or
maintained.
Note: The system does not function below
2 mph (3 km/h)
.
The system requires a cool down interval
after a period of sustained use. Hill descent
control provides a warning in the message
center and a tone sounds when the system
is about to disengage for cooling. At this
time, manually apply the brakes as needed
to maintain descent speed.
Note: The amount of time that the system
can remain active before cooling varies with
conditions.
HILL DESCENT CONTROL
PRECAUTIONS WARNING:
The system does not
control speed in low traction conditions
or extremely steep slopes. 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
personal injury. WARNING:
Hill descent control
cannot control descent in all surface
conditions and circumstances, such as
ice or extremely steep grades. Hill
descent control is a driver assist system
and cannot substitute for good judgment
by the driver. Failure to do so may result
in loss of vehicle control, crash or serious
injury. WARNING:
The system does not
replace the parking brake. When you
leave your vehicle, always apply the
parking brake and shift the transmission
into park (P) for automatic transmission
or first gear for manual transmission.
SWITCHING HILL DESCENT
CONTROL ON AND OFF Press the button on the
instrument panel. A light
illuminates and a tone sounds
when the system is active.
SETTING THE HILL DESCENT
SPEED
To increase or decrease the descent speed,
press the accelerator or brake pedal, or use
the SET
+ and SET - buttons on the
steering wheel. Once you reach the
preferred speed remove your feet from the
pedals.
HILL DESCENT CONTROL
INDICATOR Illuminates when you switch hill
descent control on.
330
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Hill Descent Control
(If Equipped)E163171 E163171

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).
353
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.
354
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Adaptive Cruise Control
(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.
355
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Adaptive Cruise Control (If Equipped)E144529 E337576

WHAT IS PRE-COLLISION
ASSIST
Pre-collision assist detects and warns of
approaching hazards in the roadway. If
your vehicle is rapidly approaching another
stationary vehicle, a vehicle traveling in the
same direction as yours, or a pedestrian
within your driving path, the system
provides multiple levels of assistance to
help avoid a collision.
HOW DOES PRE-COLLISION
ASSIST WORK
The system warns the driver of potential
hazards by providing three levels of
assistance.
If your vehicle is rapidly approaching
potential hazards the system provides the
following levels of functionality:
1. Alert.
2. Brake Support.
3. Automatic Emergency Braking.
Alert: When active, a flashing
visual warning appears and an
audible warning tone sounds.
Brake Support
: The system is designed
to help reduce the impact speed by
preparing the brakes for rapid braking. The
system does not automatically apply the
brakes. If you press the brake pedal, the
system could apply additional braking up
to maximum braking force, even if you
lightly press the brake pedal.
Automatic Emergency Braking
:
Automatic emergency braking may
activate if the system determines that a
collision is imminent. Note:
If you perceive pre-collision assist
alerts as being too frequent or disturbing,
then you can reduce the alert sensitivity,
although the manufacturer recommends
using the highest sensitivity setting where
possible. Setting lower sensitivity would
lead to fewer and later system warnings.
Each system has various levels of
detection capabilities. See Pre-Collision
Assist Limitations
(page 397).
PRE-COLLISION 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:
The system does not
detect vehicles that are driving in a
different direction, cyclists or animals.
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:
The system does not
operate during hard acceleration or
steering. Failure to take care may lead
to a crash or personal injury. WARNING: The system may fail or
operate with reduced function during
cold and severe weather conditions.
Snow, ice, rain, spray and fog can
adversely affect the system. Keep the
front camera and radar free of snow and
ice. Failure to take care may result in the
loss of control of your vehicle, serious
personal injury or death.
396
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Pre-Collision Assist
(If Equipped)E156130 E329466