check engine light FORD F-150 2021 Owners Manual

Autowipers
.....................................................143
Checking the Wiper Blades .....................
144
Replacing the Front Wiper Blades ........
144
Washers ..........................................................
145
Wipers and Washers – Troubleshooting ........................................................................\
.
145
Exterior Lighting
Exterior Lighting Control ...........................
147
Exterior Lighting Control - Police Responder ..................................................
147
Headlamps .....................................................
147
Headlamps – Troubleshooting ..............
148
Autolamps .....................................................
148
Exterior Lamps .............................................
149
Exterior Zone Lighting .................................
151
Automatic High Beam Control ...............
152
Automatic High Beam Control – Troubleshooting .......................................
154
Glare Free Lighting ......................................
155
Glare Free Lighting – Troubleshooting ........................................................................\
.
157
Adaptive Front Lighting .............................
157
Interior Lighting
Switching All of the Interior Lamps On and Off ........................................................
159
Switching the Front Interior Lamps On and Off ........................................................
159
Switching the Front Interior Lamps On and Off - Police Responder .................
159
Switching the Rear Interior Lamps On and Off ........................................................
160
Switching the Rear Interior Lamps On and Off - Police Responder ................
160
Interior Lamp Function .............................
160
Adjusting the Instrument Panel Lighting Brightness ...................................................
161
Ambient Lighting ..........................................
161
Interior Lighting – Troubleshooting .......
161Windows
Opening and Closing the Windows
......
162
Window Bounce-Back ...............................
162
Locking the Rear Window Controls ......
163
Opening and Closing the Sliding Windows .....................................................
163
Interior Mirror
Interior Mirror Precautions .......................
164
Manually Dimming the Interior Mirror ........................................................................\
.
164
Auto-Dimming Interior Mirror .................
164
Exterior Mirrors
Adjusting the Exterior Mirrors .................
165
Folding the Exterior Mirrors - Vehicles With: Manual Folding Mirrors ..............
165
Folding the Exterior Mirrors - Vehicles With: Power Folding Mirrors ................
165
Extending the Exterior Mirrors ................
166
Auto-Dimming Exterior Mirror ................
166
Moonroof
Opening and Closing the Sun Shade ........................................................................\
.
167
Opening and Closing the Moonroof ......
167
Venting the Moonroof ................................
167
Moonroof Bounce-Back ...........................
168
Instrument Cluster
Instrument Cluster Overview - Vehicles With: 4.2 Inch Screen .............................
169
Instrument Cluster Overview - Vehicles With: 8 Inch Screen ................................
170
Instrument Cluster Overview - Vehicles With: 12.3 Inch Screen .............................
171
Tachometer .....................................................
171
Speedometer ..................................................
171
Fuel Gauge .......................................................
171
Engine Coolant Temperature Gauge ........................................................................\
..
172
4
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Table of Contents

SEATBELT REMINDER
INDICATORS
A warning lamp illuminates if the ignition
is on, a front seat is occupied and the
seatbelt has not been fastened.
The warning lamp illuminates
until you fasten your seatbelt.
SEATBELT REMINDER AUDIBLE
WARNINGS
A warning tone sounds if the warning lamp
illuminates and your vehicle exceeds a
relatively low speed.
The warning tone sounds for up to five
minutes or until you fasten your seatbelt.
SWITCHING THE SEATBELT
REMINDER ON AND OFF WARNING: While the system
allows you to deactivate it, this system
is designed to improve your chances of
being safely belted and surviving an
accident. We recommend you leave the
system activated for yourself and others
who may use the vehicle.
Note: The driver and front passenger
warnings switch off independently. When
you perform this procedure for one seating
position, do not buckle the other position as
this cancels the process.
Note: If you are using MyKey, you cannot
disable the seatbelt reminder. Also, if the
seatbelt reminder has been previously
disabled, it will be re-enabled during the use
of MyKey. See
MyKey ™ (page 98).
Read Steps 1 - 4 before proceeding with
the programming procedure. Make sure that:
•
The parking brake is set.
• The transmission is in park (P).
• The ignition is off.
• The driver and front passenger
seatbelts are unfastened.
1. Switch the ignition on. Do not start the
engine.
2. Wait about one minute until the seatbelt warning light switches off.
After Step 2, wait an additional five
seconds before proceeding with Step
3. Once you start Step 3, you must
complete the procedure within 30
seconds.
3. For the seating position you are switching off, buckle then unbuckle the
seatbelt three times at a moderate
speed, ending in the unbuckled state.
After Step 3, the seatbelt warning light
switches on.
4. When the seatbelt warning light is on, buckle then unbuckle the seatbelt.
After Step 4, the seatbelt warning light
flashes for confirmation.
This switches the feature off for that
seating position if it is currently on.
This switches the feature on for that
seating position if it is currently off.
CHECKING THE SEATBELTS
Check the seatbelts and child restraints
periodically to make sure they work
properly and are not damaged. Make sure
there are no nicks, tears or cuts. Replace if
necessary.
Check the following seatbelt assemblies
after a crash.
• Retractors.
• Buckles.
• Front seatbelt buckle assemblies.
69
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing SeatbeltsE71880

Starting the Engine
Turn the key to position III. Release the
key when the engine starts.
PUSH BUTTON IGNITION
SWITCH
(IF EQUIPPED) Switching the Ignition Off
When the ignition is on or in accessory
mode, press the push button ignition
switch once without your foot on the brake
pedal.
Switching the Ignition to
Accessory Mode
When the ignition is off, press the push
button ignition switch once without your
foot on the brake pedal.
All electrical circuits and accessories are
operational and the warning lamps and
indicators illuminate.
Note:
Your vehicle has a battery saver
feature that shuts your vehicle off when it
detects a certain amount of battery drain,
or after approximately 30 minutes of
inactivity in accessory mode.
Starting the Engine
With the transmission in park (P), press
the brake pedal and press the push button
ignition switch. An indicator light on the
button illuminates when the ignition is on
and when the engine starts. Note:
The system may not function if the
passive key is close to metal objects or
electronic devices, for example keys or a cell
phone.
Note: A valid key must be inside your
vehicle to switch the ignition on and start
the engine.
STARTING THE ENGINE
STARTING A GASOLINE ENGINE -
VEHICLES WITHOUT: PUSH
BUTTON START
Before starting your vehicle, check the
following:
• Make sure that the headlamps and
electrical accessories are off.
• Make sure that the parking brake is on.
• Make sure that the transmission is in
park (P).
1. Fully press the brake pedal.
Note: Do not touch the accelerator pedal. 2. Turn the key to position
III.
Note: The engine may continue cranking
for up to 15 seconds or until it starts.
Note: The engine takes longer to start at
lower temperatures. It may crank for several
seconds when very cold.
237
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Starting and Stopping the EngineE321258 E322354

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.
252
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Auto-Start-Stop
(If Equipped) E146361

Certain states require functioning trailer
brakes for trailers over a specified weight.
Be sure to check state regulations for this
specified weight.
Ford Motor Company recommends
separate functioning brake systems for
trailers weighing more than 1,500 lb
(680 kg) when loaded.
TOWING A TRAILER
LIMITATIONS
The vehicle's load capacity
designation is by weight, not by
volume, so you cannot necessarily
use all available space when
loading a vehicle or trailer.
Note: Your vehicle could have
reduced performance when
operating at high altitudes and
when heavily loaded or towing a
trailer. When driving at elevation,
to match driving performance as
perceived at sea level, reduce gross
vehicle weight and gross
combination weight by 2% per
1,000 ft (300 m)
elevation.
LOADING YOUR TRAILER
To help minimize how trailer
movement affects your vehicle
when driving:
• Load the heaviest items closest
to the trailer floor.
• Load the heaviest items
centered between the left and
right side trailer tires. •
Load the heaviest items above
the trailer axles or just slightly
forward toward the trailer
tongue. Do not allow the final
trailer tongue weight to go
above or below 10-15% of the
loaded trailer weight. The
trailer tongue weight should
never exceed 10% of the
maximum towing capacity.
• Select a ball mount with the
correct rise or drop. When both
the loaded vehicle and trailer
are connected, the trailer frame
should be level, or slightly
angled down toward your
vehicle, when viewed from the
side.
TRAILER TOWING HINTS
Towing a trailer places an extra load on
your vehicle's engine, transmission, axle,
brakes, tires and suspension. Periodically
inspect these components during and after
any towing operation.
When driving with a trailer or payload, a
slight takeoff vibration or shudder may be
present due to the increased payload
weight.
Your vehicle may have a temporary or
conventional spare tire. A temporary spare
tire is different in diameter or width,
tread-type, or is from a different
manufacturer than the road tires on your
vehicle. Consult information on the tire
label or Safety Compliance label for
limitations when using.
429
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Towing a Trailer

DRIVING THROUGH WATER
LIMITATIONS - RAPTOR
Maximum Wading
Depth
Model
32 in (810 mm)
All.
When you are driving though water do not
exceed 4 mph (7 km/h).
WATER WADING WARNING:
Do not attempt to
cross a deep, fast flowing body of water.
Failure to follow this instruction could
result in the loss of control of your
vehicle, personal injury or death.
As the water depth increases, you must
reduce your vehicle speed to avoid
potential vehicle damage. •
Always determine the depth before
attempting a water crossing. Never
drive through water that is higher than
the bottom of the wheel hubs.
• Slowly proceed and avoid splashing
water any more than is necessary. •
Be aware that obstacles and debris
may be beneath the water ’s surface.
• Keep the doors fully closed during the
water crossing.
• After driving through water and as soon
as it is safe to do so check the brakes,
horn, lights, and steering wheel to
confirm those systems are functioning
properly.
Note: Engine damage can occur if water
enters the air filter.
OFF-ROAD DRIVING AIDS -
RAPTOR
Selecting an Off-Road Drive Mode
Using the appropriate drive mode increases
your vehicle's control. See
Drive Mode
Control (page 371).
Using Four-Wheel Drive
Your vehicle has a four-wheel drive system
that offers various modes to help you
optimize traction on any off-road surface.
See
Four-Wheel Drive (page 291).
Using the Cameras Off-Road
Use the 360 degree camera to enhance
your off-road experience. See 360 Degree
Camera
(page 342).
Using the Rear Differential Lock
When engaged, the rear differential lock
provides additional traction to your vehicle
by forcing the two rear wheels to turn at
the same speed.
Note: Rear differential lock is only available
when the vehicle is in 4H or 4L. See
Electronic Locking Differential (page 301).
474
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Driving HintsE310941

•
Moderate braking is particularly
important since it allows you to
maximize the energy captured by the
regenerative braking system.
• Drive at steady speeds without
stopping.
• Anticipate stops; slowing down may
eliminate the need to stop.
• Driving on flat terrain.
• Drive at reasonable speeds and
observe posted speed limits.
• Shut all windows when driving at high
speeds.
• Combine errands and minimize
stop-and-go driving.
• Drive with the tonneau cover installed
if your vehicle comes with one.
• Keep the tires properly inflated and use
only the recommended size.
• Use the recommended engine oil.
• Follow the recommended maintenance
schedule and carry out the
recommended checks.
• Perform all scheduled maintenance.
Note: Having your engine running is not
always an indication of inefficiency. In some
cases, it is actually more efficient than
driving in electric mode.
Avoid these actions; they reduce your fuel
consumption:
• Revving the engine.
• Aggressive driving increases the
amount of energy required to move
your vehicle.
• Driving in lower temperatures during
the first 5–10 mi (12 –16 km) of driving.
• Idle for periods longer than one minute.
• Use the air conditioner or front
defroster. •
Adding certain accessories to your
vehicle like bug deflectors, rollbars,
light bars, running boards, ski racks or
luggage racks.
• Use the speed control in hilly terrain.
• Using fuel blended with alcohol.
• Drive a heavily loaded vehicle or tow a
trailer.
• Driving with the wheels out of
alignment.
DRIVING IN SPECIAL
CONDITIONS
EMERGENCY MANEUVERS
In an unavoidable emergency where you
must make a sudden sharp maneuver, turn
the steering wheel only as rapidly and as
far as required to avoid the emergency.
Apply smooth pressure to the accelerator
pedal or brake pedal as needed. Avoid
abrupt steering, acceleration and braking
changes. Abrupt changes could increase
the risk of vehicle roll over, loss of vehicle
control and personal injury. If possible, use
any available road surfaces to bring your
vehicle under control.
FLOOR MATS WARNING:
Use a floor mat
designed to fit the footwell of your
vehicle that does not obstruct the pedal
area. Failure to follow this instruction
could result in the loss of control of your
vehicle, personal injury or death. WARNING:
Pedals that cannot
move freely can cause loss of vehicle
control and increase the risk of serious
personal injury.
477
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Driving Hints

6. Press and hold the brake pedal.
7. Using the instrument cluster controls
on the steering wheel, select Settings.
8. Select Neutral Tow.
9. Press and hold the
OK button until a
confirmation message appears in the
information display.
Note: If completed successfully, the
information display shows
Neutral Tow
Enabled Leave Transmission in Neutral.
This indicates that your vehicle is safe to
tow with all wheels on the ground.
Note: If you do not see a confirmation
message in the instrument cluster display,
you must perform the procedure again from
the beginning.
Note: You may hear noise as the transfer
case shifts into its neutral position. This is
normal.
10. Release the brake pedal.
11. Leave the transmission in neutral (N)
and switch your vehicle off by
pressing the push button ignition
switch once without pressing the
brake pedal or turning the key as far
toward the off position.
Note: Vehicles with keys do not turn to the
off position when the transmission is in
neutral (N). You must leave the key in the
ignition when towing. Use the keyless entry
keypad or an extra set of keys to lock and
unlock your vehicle.
Switching
Neutral Tow Off
1. With your vehicle properly secured to the tow vehicle, press and hold the
brake pedal and start the engine.
2. Switch your vehicle off by pressing the
push button ignition switch once or
turning the key as far towards the off
position and release the brake pedal. 3. Place your vehicle in accessory mode
by pressing the push button ignition
switch once without pressing the brake
pedal or by turning the ignition key to
the on position.
4. Press and hold the brake pedal.
5. Shift into park (P).
6. Release the brake pedal.
Note: If completed successfully, the
instrument cluster displays 2H and Neutral
Tow Disabled
.
Note: You must perform the switching
neutral tow on and switching neutral tow
off procedures again from the beginning if
the indicator light and message do not
display.
Note: You may hear a noise as the transfer
case shifts out of its neutral position. This
is normal.
7. Apply the parking brake, then disconnect your vehicle from the tow
vehicle.
8. Release the parking brake, start the engine, and shift into drive (D) to make
sure the transfer case is out of the
neutral tow position.
9. If the transfer case does not successfully shift out of its neutral
position, set the parking brake. Have
your vehicle checked as soon as
possible.
Resolving the
Shift Delayed Drive
Forward Message
1. Press and hold the brake pedal.
2. Start your vehicle.
3. Shift into neutral (N).
4. With the vehicle running, shift into drive
(D) and let the vehicle roll forward up
to
3 ft (1 m).
491
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Towing Your Vehicle

5. Start the engine.
6. Check for leaks.
Note:
The water in fuel warning lamp turns
off after approximately two seconds with
the engine running.
Note: The in-tank pump will turn off
automatically after approximately 30
seconds.
CHANGING THE FUEL FILTER
- DIESEL
Your fuel filters must be changed at the
correct service interval or when you see the
low fuel pressure message appear. Refer
to scheduled maintenance for the correct
service interval.
CHANGING THE FUEL FILTER
- GASOLINE
Your vehicle has a lifetime fuel filter that
integrates with the fuel tank. It does not
need regular maintenance or replacement.
CHANGING THE 12V BATTERY WARNING: Batteries normally
produce explosive gases which can
cause personal injury. Therefore, do not
allow flames, sparks or lighted
substances to come near the battery.
When working near the battery, always
shield your face and protect your eyes.
Always provide correct ventilation. WARNING:
When lifting a
plastic-cased battery, excessive pressure
on the end walls could cause acid to flow
through the vent caps, resulting in
personal injury and damage to the
vehicle or battery. Lift the battery with a
battery carrier or with your hands on
opposite corners. WARNING:
Keep batteries out of
reach of children. Batteries contain
sulfuric acid. Avoid contact with skin,
eyes or clothing. Shield your eyes when
working near the battery to protect
against possible splashing of acid
solution. In case of acid contact with skin
or eyes, flush immediately with water for
a minimum of 15 minutes and get prompt
medical attention. If acid is swallowed,
call a physician immediately. WARNING:
Battery posts,
terminals and related accessories
contain lead and lead compounds,
chemicals known to the State of
California to cause cancer and
reproductive harm. Wash your hands
after handling
. WARNING:
This vehicle may have
more than one battery. Removing the
battery cables from only one battery
does not disconnect your vehicle
electrical system. Make sure you
disconnect the battery cables from all
batteries when disconnecting power.
Failure to do so may cause serious
personal injury or property damage.
The battery is in the engine compartment.
See
Under Hood Overview (page 504).
Your vehicle has a maintenance-free
battery. It does not require additional
water during service.
519
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Maintenance

PREPARING YOUR VEHICLE
FOR STORAGE
If you plan on storing your vehicle for 30
days or more, the following maintenance
recommendations ensures your vehicle
stays in good operating condition.
Under various conditions, long-term
storage may lead to degraded engine
performance or failure unless you use
specific precautions to preserve your
vehicle.
General
•
Store all vehicles in a dry, ventilated
place.
• If vehicles are stored outside, they
require regular maintenance to protect
against rust and weather damage.
• Make sure all linkages, cables, levers
and pins under your vehicle are covered
with grease to prevent rust.
• Move vehicles at least 25 ft (7.5 m)
every 15 days to lubricate working parts
and prevent corrosion.
• Fill the fuel tank with high-quality fuel
until the first automatic shutoff of the
fuel pump nozzle.
Engine
• Change the engine oil and filter prior to
storage because used engine oil
contains contaminants which may
cause engine damage.
• Start the engine every 15 days for a
minimum of 15 minutes. Run at fast
idle with the climate controls set to
defrost until the engine reaches normal
operating temperature.
• With your foot on the brake, shift
through all the gears while the engine
is running. Body
•
Wash your vehicle thoroughly to
remove dirt, grease, oil, tar or mud from
exterior surfaces, rear-wheel housings
and the underside of front fenders.
• Periodically wash your vehicle if it is
stored in exposed locations.
• Touch-up exposed or primed metal to
prevent rust.
• Cover chrome and stainless steel parts
with a thick coat of auto wax to prevent
discoloration. Re-wax as necessary
when you wash your vehicle.
• Lubricate all hood, door and luggage
compartment hinges and latches with
a light grade oil.
• Cover interior trim to prevent fading.
• Keep all rubber parts free from oil and
solvents.
Hybrid Battery Systems
We recommend the following actions for
your vehicle:
• When storing your vehicle for greater
than 30 days the state of charge
should be approximately 50%.
Additionally we recommend
disconnecting the 12V battery which
will reduce system loads on the HV
battery.
12 Volt Battery
• Check and recharge as necessary. Keep
connections clean.
Note: It is necessary to reset memory
features if you disconnect the battery
cables.
Brakes
Make sure the brakes and parking brake
release fully.
540
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202104, Second-Printing Storing Your Vehicle