2021 FORD F-150 service

GLARE FREE LIGHTING – TROUBLESHOOTING (IF EQUIPPED)
GLARE FREE LIGHTING – INFORMATION MESSAGES Description
Message
The camera has reduced visibility. Clean the windshield. If
the message continues to appear, have your vehicle checked
as soon as possible.
Front Camera Low Visib-
ility Clean Screen
The camera has malfunctioned. Wait a short period of time
for the camera to cool down. If the message continues to
appear, have your vehicle checked as soon as possible.
Front Camera Tempor-
arily Not Available
The camera has malfunctioned. Have your vehicle checked
as soon as possible.
Front Camera Malfunc-
tion Service Required
ADAPTIVE FRONT LIGHTING (IF
EQUIPPED)
HOW DOES ADAPTIVE FRONT
LIGHTING WORK
Adaptive front lighting adapts when you
are steering around a curve or if the camera
detects lane markings indicating a curve. Without adaptive front lighting.
A
With adaptive front lighting.
B
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Exterior LightingE161714

INSTRUMENT CLUSTER
WARNING LAMPS
Anti-Lock Brake System
If it illuminates when you are
driving, this indicates a
malfunction. Your vehicle
continues to have normal braking without
the anti-lock brake system function. Have
your vehicle checked as soon as possible.
Battery It illuminates when you switch
the ignition on.
If it illuminates when the engine
is running, this indicates your vehicle
requires service. Have your vehicle
checked as soon as possible.
Brake System It illuminates when you apply the
parking brake and the ignition is
on. If it illuminates when your
vehicle is moving, make sure the
parking brake is released. If the
parking brake is released, this
indicates low brake fluid level or the brake
system requires service. Have your vehicle
checked as soon as possible.
Note: Indicators may vary depending on
region.
Diesel Exhaust Fluid Illuminates when the diesel
exhaust fluid is low,
contaminated or the system
requires service. See What Is the
Selective Catalytic Reduction System
(page
273). Door Ajar It illuminates when you switch
the ignition on and remains on if
any door is open.
Electric Parking Brake It illuminates or flashes when the
electric parking brake requires
service.
Engine Coolant Temperature If it illuminates, safely stop your
vehicle and switch the vehicle
off.
Fasten Seatbelt It illuminates and a tone sounds
until you fasten the seatbelts.
Hood Ajar It illuminates when the ignition
is on and the hood is not
completely closed.
Low Fuel Level It illuminates when the fuel level
is low.
Low Tire Pressure It illuminates when your tire
pressure is low. If illuminated,
check your tire pressure as soon
as possible. If it begins to flash at anytime,
have the system checked as soon as
possible.
Low Washer Fluid Level It illuminates when the washer
fluid is low.
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Oil Pressure
It illuminates when the engine
oil pressure is low.
Powertrain Malfunction, Reduced
Power, Electronic Throttle Control,
Check 4X4 Illuminates when the powertrain
or four-wheel drive require
service. Have the system
checked as soon as possible.
Malfunction Indicator Lamp It illuminates when the ignition
is on and the engine is off, this is
normal. If it illuminates when the
engine is on this indicates the emission
control system requires service. If it flashes,
have your vehicle checked immediately.
See Emission Law (page 760). See
Starting and Stopping the Engine –
Warning Lamps
(page 244).
Stop Safely Illuminates if an electrical
component requires service or a
failure that causes your vehicle
to shutdown or enter into a limited
operating mode.
Tailgate Ajar It illuminates when the ignition
is on and the tailgate is not
completely closed.
Water in Fuel It illuminates when the fuel and
water separator has a significant
quantity of water in it and
requires immediate draining. WHAT ARE THE INSTRUMENT
CLUSTER INDICATORS
Indicators notify you of various features
that are active on your vehicle.
INSTRUMENT CLUSTER
INDICATORS
Adaptive Cruise Control
See
Adaptive Cruise Control
(page 352).
Automatic High Beam See
Automatic High Beam
Control Indicators (page 154).
Automatic Regen Control Off See
Diesel Particulate Filter
Precautions (page 268).
Auto Hold Active See
Auto Hold (page 318).
Auto Hold Unavailable See
Auto Hold (page 318).
Auto-Start-Stop See
Auto-Start-Stop (page
252).
Blind Spot Monitor See
Blind Spot Information
System (page 389).
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POWER OUTLET – FREQUENTLY
ASKED QUESTIONS
Why is there a warning about
something being plugged into the bed
power outlet when I do not have
anything plugged in?
One or more of the bed power outlet
covers may be ajar or broken. Make
sure the generator is off and check the
outlet covers. Select OK on the
instrument cluster display to
acknowledge the warning.
Why can I not shift my vehicle out of
Park (P)? Make sure the bed power outlet covers
are closed and not damaged. Press
OK on the instrument cluster display
to acknowledge the warning to be able
to move the transmission from Park
(P).
What do I do when my instrument
cluster display is malfunctioning and
I cannot acknowledge the warning to
put the transmission in Drive (D). Switch the vehicle off and make sure
nothing is plugged into the bed power
outlet and all outlet covers are closed.
Switch the vehicle on and select OK
on the instrument cluster display to
acknowledge the warning. Have your
vehicle serviced soon.
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Outlet

If it flashes, engine misfire could be
occurring. Increased exhaust gas
temperatures could damage the catalytic
converter or other vehicle components.
Avoid heavy acceleration and deceleration,
and have your vehicle checked as soon as
possible.
Powertrain Warning Lamp If it illuminates when the engine
is running, this indicates a
powertrain or four-wheel drive
fault. If it flashes when you are driving,
immediately reduce the vehicle speed.
Avoid heavy acceleration and deceleration,
and have your vehicle checked as soon as
possible.
If both lamps illuminate when the engine
is running, stop your vehicle as soon as it
is safe to do so. Continuing to drive your
vehicle could cause reduced power or the
engine to stop. Switch the ignition off and
attempt to restart the engine. Have your
vehicle checked as soon as possible.
STARTING AND STOPPING THE ENGINE – INFORMATION MESSAGES Action
Message
Displays if you exceed the starting time limit. You cannot
attempt to start the engine for 15 minutes. If you cannot start
the engine after 15 minutes passes, have your vehicle imme-
diately checked.
Cranking Time Exceeded
Displays if you are unable to start your vehicle with a correctly
coded key. The system has detected a fault that requires
service. Have your vehicle checked as soon as possible.
Starting System Fault
Displays if the system does not detect a valid passive key.
No Key Detected
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F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Starting and Stopping the Engine

WHAT IS AUTO-START-STOP
The system is designed to help reduce fuel
consumption and CO
2 emissions by
stopping the engine when it is idling, for
example at traffic lights.
AUTO-START-STOP
PRECAUTIONS WARNING: Apply the parking
brake, shift into park (P), switch the
ignition off and remove the key before
you leave your vehicle. Failure to follow
this instruction could result in personal
injury or death. WARNING:
Apply the parking
brake, shift into park (P), switch the
ignition off and remove the key before
you open the hood or have any service
or repair work completed. If you do not
switch the ignition off, the engine could
restart at any time. Failure to follow this
instruction could result in personal injury
or death.
SWITCHING AUTO-START-
STOP ON AND OFF
The system turns on when you switch the
ignition on. Press the button to switch the
system off.
Note: OFF
illuminates in the switch.
Note: Deactivating the system using the
button lasts only one key cycle.
Press the button again to switch the
system back on. Note:
The system turns off if it detects a
malfunction. If the system malfunctions,
have your vehicle checked as soon as
possible.
STOPPING THE ENGINE
Stop your vehicle, keep your foot on the
brake pedal and the transmission in drive
(D).
Note: Power assist steering turns off when
the engine stops.
RESTARTING THE ENGINE
Release the brake pedal or press the
accelerator pedal.
A message appears in the information
display if the system requires you to take
action.
AUTO-START-STOP
INDICATORS WARNING:
The system may
require the engine to automatically
restart when the auto-start-stop
indicator illuminates green or flashes
amber. Failure to follow this instruction
could result in personal injury. The Auto-Start-Stop indicator
illuminates green when the
engine stops. It flashes amber
and a message appears when you need to
take action. The Auto-Start-Stop indicator
illuminates gray with a
strikethrough when the system
is not available.
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(If Equipped) E146361

Note:
Do not blend used engine oil with
diesel fuel under any circumstances.
Blending used oil with the fuel significantly
increases your vehicle ’s exhaust emissions
and reduce engine life due to increased
internal wear.
We recommend Top Tier diesel fuel where
available to help minimize engine deposits
and maintain optimal vehicle and engine
performance.
For additional information, visit
www .t op tier g a s. c om .
You should use ultra-low sulfur diesel fuel
designated as number 1-D or 2-D with a
maximum of 15-ppm sulfur in your diesel
vehicle. You can operate your vehicle on
diesel fuels containing up to 20%
biodiesel, also known as B20. These fuels
should meet the ASTM D975 diesel or the
ASTM D7467 B6-B20 biodiesel industry
specifications. Outside of North America,
use fuels meeting EN590 or equivalent
local market standard. Using low-sulfur diesel fuel
(16-500 ppm) or high-sulfur
diesel fuel (greater than 500
ppm) in your diesel engine will cause
certain emission components to
malfunction which could also cause the
service engine soon light to illuminate
indicating an emissions-related concern.
Diesel fuel is adjusted seasonally for cold
temperature. For best results at
temperatures below 19°F (-7°C), we
recommend using a diesel fuel which has
been seasonally adjusted for the ambient
conditions. Choosing the Right Fuel: Vehicles
Operated Where Ultra Low Sulfur
Diesel Fuel Is Not Required
For the engine to operate reliably on
low-sulfur or high-sulfur diesel fuel, the
engine must be a factory-built high-sulfur
engine (available as a dealer order option
for select markets) or an ultra-low sulfur
diesel fuel configured engine that has been
retrofitted for high-sulfur diesel fuel using
authorized dealer service parts. Failure to
use retrofit components other than those
available through your authorized dealer
results in coolant system damage, engine
overheating, selective catalyst reduction
system or diesel particulate filter damage
and possible base engine damage.
Use only a diesel engine configured for use
with high-sulfur diesel fuel in markets with
diesel fuel that has sulfur content greater
than 15 ppm. Using low-sulfur diesel fuel
(16–500 ppm) or high-sulfur diesel fuel
(greater than 500 ppm) in a diesel engine
designed to use only ultra-low sulfur diesel
fuel could result in damage to engine
emission control devices and the after
treatment system, potentially rendering
the vehicle inoperable.
Vehicles with engines configured for use
with high-sulfur diesel fuel are only
available for sale in countries where
ultra-low sulfur diesel fuel is generally not
available or mandated by the government.
Vehicles originally sold in an ultra-low
sulfur diesel fuel market that are
subsequently exported to non-ultra low
sulfur diesel fuel markets will need to be
retrofitted at the customer
’s expense using
Ford authorized dealer service parts in
order to be reliably operated on non-ultra
low sulfur diesel fuel.
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Biodiesel
WARNING: Do not mix diesel with
gasoline, gasohol or alcohol. This could
cause an explosion.
Note: Do not use home heating oil,
agricultural fuel, raw fats and oils, waste
cooking greases, biodiesel greater than 20%
or any diesel not intended for highway use.
Damage to the fuel injection system, engine
and exhaust catalyst, and diesel particulate
filter can occur if you use an improper fuel.
Red dye is used to identify fuels intended
for agricultural and non-highway use.
You can operate your vehicle on diesel
fuels containing up to 20% biodiesel, also
known as B20.
Biodiesel fuel is a chemically converted
product from renewable fuel sources, such
as vegetable oils, animal fats and waste
cooking greases.
To help achieve acceptable engine
performance and durability when using
biodiesel in your vehicle:
• Confirm the biodiesel content of the
fuel to be B20 (20% biodiesel) or less.
• Only use biodiesel fuel of good quality
that complies with industry standards.
• Follow the recommended service
maintenance intervals. See
General
Maintenance Information (page 664).
• Do not store biodiesel fuel in the fuel
tank for more than 1 month.
• Consider changing brands or reducing
biodiesel content if you have cold
temperature fuel gelling issues or a
frequently appearing LOW FUEL
PRESSURE message. Use of biodiesel in concentrations greater
than 20% can cause damage to your
vehicle, including engine and/or exhaust
after-treatment hardware (exhaust
catalyst and particulate filter) failures.
Concentrations greater than 20% can also
cause fuel filter restrictions that could
result in a lack of power or damage to fuel
system components, including fuel pump
and fuel injector failures.
We recommend SAE 5W-40 oil for fuels
with greater than 5% biodiesel (B5). For
more information about oil change
intervals and other maintenance when
operating on biodiesel.
See Special
Operating Conditions Scheduled
Maintenance
(page 675).
Look for a label on the fuel pump to
confirm the amount of biodiesel contained
in diesel fuel. Ask the service station
attendant to confirm the biodiesel content
of diesel fuel, if you do not see a label on
the fuel pump.
If you plan to park or store your vehicle for
more than 1 month, then you should empty
your vehicle fuel tank of biodiesel fuel. You
should fill the tank with a pure
petroleum-based diesel fuel and run your
vehicle for a minimum of 30 minutes.
Note: Degraded or oxidized biodiesel can
damage fuel system seals and plastics and
corrode steel parts.
During cold weather, if you have problems
operating on biodiesel, you may need to
use diesel fuel with lower biodiesel
content, try another brand or discontinue
the use of biodiesel.
Diesel Fuel Additives
It should not be necessary to add any
aftermarket additives to your fuel if you
use a high-quality diesel fuel that conforms
to ASTM industry specifications.
Aftermarket additives can damage the fuel
injector system or engine.
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