2021 FORD F-150 ECO mode

To manually activate or deactivate the
electronic locking differential, press the
electronic locking differential button.
Note:
The electronic locking differential can
activate or deactivate automatically based
on speed, four-wheel drive mode, and drive
mode selection. See Selecting a Drive
Mode (page 373).
4X4 Rear Electronic Locking Differential Engagement Speed and Availability Automatic Re-
Engagement Speed
Automatic Disen-
gagement Speed
Maximum Engage-
ment Speed
Drive Modes
20 mph (30 km/h)
25 mph (41 km/h)
20 mph (30 km/h)
Normal (2H, 4A 2
, 4H)
20 mph (30 km/h)
25 mph (41 km/h)
20 mph (30 km/h)
Eco (2H, 4A 2
, 4H)
20 mph (30 km/h)
25 mph (41 km/h)
20 mph (30 km/h)
Sport (2H, 4A 2
, 4H)
20 mph (30 km/h)
25 mph (41 km/h)
20 mph (30 km/h)
Slippery (2H, 4A 2
,
4H)
No Speed Limit
No Speed Limit
No Speed Limit
Deep Snow/Sand
(4H, 4L) 1
No Speed Limit
No Speed Limit
No Speed Limit
Mud/Ruts (4H, 4L) 1
No Speed Limit
No Speed Limit
No Speed Limit
Rock Crawl (4L) 1
20 mph (30 km/h)
25 mph (41 km/h)
No Speed Limit
Tow/Haul Mode
1 Automatically engages when you select these drive modes. You have the ability to
manually override the automatic engagement by pressing the electronic locking differential
button.
2 If available for 4A drive modes.
304
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Electronic Locking Differential
(If Equipped)E308146

Automatic Re-
Engagement Speed
Automatic Disen-
gagement Speed
Maximum Engage-
ment Speed
4WD Mode
No speed Limit
No speed Limit
No speed Limit
Four-Wheel Drive
Low (4L)
Note: The electronic locking differential
may not engage if you press your accelerator
pedal during an engagement attempt. A
message could display in the instrument
display guiding you to release the
accelerator pedal.
Note: If the electronic locking differential
has difficulty disengaging, release the
accelerator pedal and turn the steering
wheel in the opposite direction while rolling.
Note: The electronic locking differential is
for off-road use only and is not for use on
dry pavement. Using the electronic locking
differential on dry pavement results in
increased tire wear, noise and vibration.
SWITCHING THE ELECTRONIC
LOCKING DIFFERENTIAL ON
AND OFF - 4X2
The button to activate and deactivate the
electronic locking differential is located in
the center of the Drive mode rotary switch. To manually activate or deactivate the
electronic locking differential, press the
electronic locking differential button.
4X2 Rear Electronic Locking Differential Engagement Speed and Availability Automatic Re-Engagement
Speed
Automatic Disengagement
Speed
Maximum Engagement
Speed
20 mph (30 km/h)
25 mph (41 km/h)
20 mph (30 km/h)
Note: The electronic locking differential
may not engage if you press your accelerator
pedal during an engagement attempt. A
message could display in the instrument
display guiding you to release the
accelerator pedal. Note:
If the electronic locking differential
has difficulty disengaging, release the
accelerator pedal and turn the steering
wheel in the opposite direction while rolling.
305
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Electronic Locking Differential (If Equipped)E333748

BRAKE PRECAUTIONS
WARNING: Driving your vehicle
with the warning lamp on is dangerous.
A significant decrease in braking
performance may occur. It may take you
longer to stop your vehicle. Have your
vehicle checked as soon as possible.
Driving extended distances with the
parking brake engaged can cause brake
failure and the risk of personal injury.
Wet brakes result in reduced braking
efficiency. Gently press the brake pedal a
few times when leaving a car wash or
driving from standing water to dry the
brakes.
Note: Depending on applicable laws and
regulations in the country for which your
vehicle was originally built, the stoplamps
could flash during heavy braking. Following
this the hazard warning flashers could also
turn on when your vehicle comes to a stop.
ANTI-LOCK BRAKING SYSTEM
ANTI-LOCK BRAKING SYSTEM
LIMITATIONS
The anti-lock braking system does not
eliminate the risk of crash when:
• You drive too closely to the vehicle in
front of you.
• Your vehicle is hydroplaning.
• You take corners too fast.
• The road surface is poor.
Note: If the system activates, the brake
pedal could pulse and travel further.
Maintain pressure on the brake pedal. BRAKE OVER ACCELERATOR
- RAPTOR
In the event the accelerator pedal
becomes stuck or entrapped, apply steady
and firm pressure to the brake pedal to
slow the vehicle and reduce engine power.
If you experience this condition, apply the
brakes and bring your vehicle to a safe
stop. Move the transmission to park (P),
switch the engine off and apply the parking
brake. Inspect the accelerator pedal for
any interference. If none are found and the
condition persists, have your vehicle towed
to the nearest authorized dealer.
Note:
Certain drive modes can disable
brake over accelerator for off-road driving.
BRAKE OVER ACCELERATOR
In the event the accelerator pedal
becomes stuck or entrapped, apply steady
and firm pressure to the brake pedal to
slow the vehicle and reduce engine power.
If you experience this condition, apply the
brakes and bring your vehicle to a safe
stop. Move the transmission to park (P),
switch the engine off and apply the parking
brake. Inspect the accelerator pedal for
any interference. If none are found and the
condition persists, have your vehicle towed
to the nearest authorized dealer.
LOCATING THE BRAKE FLUID
RESERVOIR
See
Under Hood Overview (page 504).
308
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Brakes

ELECTRIC PARKING BRAKE – INFORMATION MESSAGES
Action
Message
The electric parking brake is set and a manual releaseis attempted without the brake pedal being pressed.
To Release: Press Brake and
Switch
The electric parking brake is set and an automaticrelease is attempted but cannot be performed. Perform a manual release.
Park Brake Use Switch to
Release
The electric parking brake is set and your vehicle speedexceeds 3 mph (5 km/h). Release the parking brake
before continuing driving.
Release Park Brake
The electric parking brake is not fully applied.
Park Brake Not Applied
The electric parking brake is not fully released.
Park Brake Not Released
The electric parking brake system has been put into aspecial mode that is used to allow service of the rear brakes. Contact an authorized dealer.
Park Brake Maintenance Mode
The electric parking brake system has detected a
condition that requires service. Some functionality
may still be available. Contact an authorized dealer.
Park Brake Limited Function
Service Required
The electric parking brake system has detected a
condition that requires service. Contact an authorized dealer.
Park Brake Malfunction Service
Now
313
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Electric Parking Brake

HOW DOES AUTO HOLD WORK
Auto Hold applies the brakes to hold your
vehicle after you stop it and release the
brake pedal. This can help when waiting
on a hill or in traffic.
SWITCHING AUTO HOLD ON
AND OFF
WARNING: The system does not
replace the parking brake. When you
leave your vehicle, always apply the
parking brake. WARNING:
You must remain in
your vehicle when the system turns on.
At all times, you are responsible for
controlling your vehicle, supervising the
system and intervening, if required.
Failure to take care may result in the loss
of control of your vehicle, serious
personal injury or death.
You can switch the system on or off by
accessing the menu in the SYNC display
screen.
1. Press
Features on the touchscreen.
2. Press
Driver Assistance.
Note: You can only switch the system on
after you close the driver door, and fasten
your seatbelt.
Note: The system remembers the last
setting when you start your vehicle.
Note: Make sure you switch the system off
before using an automatic car wash.
USING AUTO HOLD
1. Bring your vehicle to a complete stop. The auto hold active indicator
illuminates in the information display. 2. Release the brake pedal. The system
holds your vehicle at a standstill. The
auto hold active indicator remains
illuminated in the information display.
3. Pull away in the normal manner. The system releases the brakes and the
auto hold active indicator switches off.
Note: The system only activates if you
apply enough brake pressure on the brake
pedal.
Note: Under certain conditions, the system
could apply the electric parking brake. The
brake system warning lamp illuminates. The
electric parking brake releases when you
press the accelerator pedal. See
Automatically Releasing the Electric
Parking Brake
(page 311).
Note: The system switches off if you shift
into reverse (R) and press the brake pedal.
There could be actions that can cause the
auto hold system not to work when the
following occur:
• When you use active park assist.
• Your vehicle is in stay in neutral mode.
• The driver door is open.
• You have not fastened your seatbelt.
• You shift into reverse (R) before the
system is active.
AUTO HOLD INDICATORS Illuminates when the system is
active.
Illuminates when the system is
on but cannot hold your vehicle
at a standstill at this particular
time.
318
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Auto HoldE323448 E323449

WHAT IS TRACTION CONTROL
The traction control system helps to avoid
drive wheel spin and loss of traction.
HOW DOES TRACTION
CONTROL WORK
If your wheels begin to spin, the loss of
traction can compromise steering control
and stability of the vehicle. The traction
control system applies the brakes to
individual wheels and when needed,
reduces engine power at the same time to
increase traction.
SWITCHING TRACTION
CONTROL ON AND OFF
WARNING: Operating your vehicle
with the traction control disabled could
lead to an increased risk of loss of vehicle
control, vehicle rollover, personal injury
and death. The traction control system turns on each
time you switch the ignition on.
The button for the stability and traction
control system is on the instrument panel. Press and release the button to switch
traction control off. The stability control
system remains fully active, to switch it off,
press and hold the button for a few
seconds, then release.
When you switch traction control off, a
message and an illuminated icon appear
on the instrument cluster.
Press the switch again to turn the traction
control system back on to normal
operation.
If your vehicle is stuck in mud or snow,
switching traction control off may be
beneficial as this allows the wheels to spin.
Your vehicle may have MyKey restrictions
regarding this feature. See
What Is
MyKey (page 98).
TRACTION CONTROL
INDICATOR
Stability and Traction Control
Indicator If the indicator does not
illuminate when you switch the
ignition on, or remains on when
the engine is running, this indicates a
malfunction. Have your vehicle checked
by an authorized dealer as soon as
possible. The traction control off indicator
illuminates when you switch the
traction control system off, or
when an alternative stability control mode
is selected that requires the traction
control off depending on the drive mode
selected.
319
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Traction ControlE327252 E138639 E130458

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.
323
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Stability ControlE138639

WHAT IS TRAIL CONTROL -
RAPTOR
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.
Trail control lets you focus on steering
during low-speed and off-road use by
controlling your vehicle's acceleration and
braking to maintain the speed that you set.
You may hear a noise from the anti-lock
brake system pump motor when you use
the system. This is normal.
TRAIL CONTROL LIMITATIONS
- RAPTOR
Trail control is unavailable when any of the
following occur:
• Your vehicle speed is greater than
20 mph (32 km/h)
in two-wheel drive
high (2H) or four-wheel drive high (4H)
modes.
• Your vehicle speed is greater than
9 mph (15 km/h)
in four-wheel drive
low (4L) mode.
• Your vehicle speed is greater than
5 mph (8 km/h)
in reverse (R).
• The transmission is in park (P).
• The driver side door is open or your
seatbelt is off when the driver side door
is removed.
• Cruise control is on.
• Pro trailer backup assist is on. SWITCHING TRAIL CONTROL
ON AND OFF - RAPTOR Press the button.
The system switches off if you press the
button again or exceed 40 mph (64 km/h).
SETTING THE TRAIL CONTROL
SPEED - RAPTOR
Note: The buttons are located on the
steering wheel.
Drive to your preferred speed. Press button to increase the set
current speed.
Press button to decrease the set
current speed.
Note: The indicator changes color.
You can adjust the set speed in small or
large increments. Press the toggle button
upward or downward once to adjust the
set speed in small increments. Press and
hold the toggle button upward or
downward to adjust the set speed in large
increments.
You can also adjust the set speed by
braking.
Note: Pressing the brake pedal does not
switch off the system.
CANCELING THE SET SPEED -
RAPTOR Press the button.
324
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Trail ControlE332910 E350925