FORD F-150 2021 Owners Manual

CHANGING THE ENGINE AIR
FILTER - GASOLINE
WARNING: To reduce the risk of
vehicle damage and personal burn
injuries, do not start your engine with the
air cleaner removed and do not remove
it while the engine is running.
Change the air filter element at the proper
intervals. See
Scheduled Maintenance
(page 664).
When changing the air filter element, use
only the air filter element listed. See
Capacities and Specifications
(page
574).
Note: Failure to use the correct air filter
element could result in severe engine
damage that the vehicle Warranty may not
cover.
Note: When servicing the air cleaner, do not
allow foreign material to enter the air
induction system. The engine is susceptible
to damage from even small particles. 1. Release the clips that secure the air
filter cover to the housing.
2. Carefully lift the air filter housing cover.
3. Remove the air filter element from the
air filter housing.
4. To install, reverse the removal procedure.
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ENGINE AIR FILTER - INFORMATION MESSAGES - DIESEL
Action
Message
Indicates the engine air filter is performing as expected.
Filter OK
Indicates that there is a higher than expected restriction
across the engine air filter, which could represent an air filter at full useful life or a filter with an obstruction.
When this displays, inspect the engine air filter and replace if necessary.
After the inspection or engine air filter replacement, you must reset the system in order to change the status from Check Filter to Filter OK.
Check Filter See Manual
Indicates that there is an error within the electronic air filtermaintenance minder system requiring service.
System Fault See Manual
DRAINING THE FUEL FILTER
WATER TRAP - DIESEL WARNING: Do not drain the
water-in-fuel separator while the engine
is running. Failure to follow this warning
may result in fire, serious injury, death or
property damage. WARNING:
Do not dispose of fuel
in the household refuse or the public
sewage system. Use an authorized waste
disposal facility.
Your vehicle's fuel system has a fuel filter
and water separator to remove water from
the fuel.
If the water in fuel indicator illuminates
when the engine is running, stop your
vehicle as soon as safely possible, shut off
the engine, then drain the fuel and water
separator.
Note: Allowing water to stay in the fuel
system after the water in fuel indicator
illuminates could result in extensive damage
or failure of the fuel injection system. The fuel water trap is above the frame rail
under the driver side of the vehicle.
Make sure the ignition is off before
performing the following steps.
Front of Vehicle.
A
1. Loosen the drain plug approximately one and a half turns.
2. Allow the water to drain.
3. Tighten the drain plug until you feel a strong resistance.
4. Switch the ignition on for 30 seconds, then switch the ignition off. Repeat
twice.
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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.
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For longer, trouble-free operation, keep the
top of the battery clean and dry and the
battery cables tightly fastened to the
battery terminals. If any corrosion is
present on the battery or terminals, remove
the cables from the terminals and clean
with a wire brush. You can neutralize the
acid with a solution of baking soda and
water.
We recommend that you disconnect the
negative battery cable terminal from the
battery if you plan to store your vehicle for
an extended period.
Note:
If you only disconnect the negative
battery cable terminal, make sure it is
isolated or placed away from the battery
terminal to avoid unintended connection or
arcing.
To maintain correct operation of the
battery management system, if you add
any electrical devices to your vehicle, do
not connect the ground connection directly
to the negative battery terminal. A
connection at the negative battery terminal
can cause inaccurate measurements of
the battery condition and potential
incorrect system operation.
Note: If you add electrical accessories or
components to your vehicle this may
adversely affect battery performance,
durability and the performance of other
electrical systems on your vehicle.
If you replace the battery make sure it
matches the electrical requirements of
your vehicle.
If you disconnect or replace the battery
and your vehicle has an automatic
transmission, it must relearn its adaptive
strategy. Because of this, the transmission
may shift firmly when first driven. This is
normal operation while the transmission
fully updates its operation to optimum
shift feel. Remove and Reinstall the Battery
To disconnect or remove the battery, do
the following:
1.
Apply the parking brake and switch the
ignition off.
2. Switch all electrical equipment off, for
example lights and radio.
3. Wait a minimum of two minutes before
disconnecting the battery.
Note: The engine management system has
a power hold function and remains powered
for a period of time after you switch the
ignition off. This is to allow diagnostic and
adaptive tables to be stored. Disconnecting
the battery without waiting can cause
damage not covered by the vehicle
Warranty.
4. Disconnect the negative battery cable terminal.
5. Disconnect the positive battery cable terminal.
6. Remove the battery securing clamp.
7. Remove the battery.
8. To install, reverse the removal procedure.
Note: Before reconnecting the battery,
make sure the ignition remains switched off.
Note: Make sure the battery cable terminals
are fully tightened.
Note: After cleaning or replacing the
battery, make sure you reinstall the battery
cover or shield.
If you disconnect or replace the vehicle
battery, you must reset the following
features:
• Window bounce-back. See Window
Bounce-Back (page 162).
• Clock Settings.
• Pre-set radio stations.
• Steering Angle Sensor.
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Note:
To calibrate the steering angle
sensor, drive the vehicle above 30 mph
(50 km/h) for a minimum of 1.2 mi (2 km).
Make sure to drive straight ahead for a
minimum of 30 seconds. Several vehicle
functions are disabled and a warning light
could appear until the sensor is calibrated.
Battery Management System
The battery management system monitors
battery conditions and takes actions to
extend battery life. If excessive battery
drain is detected, the system temporarily
disables some of the following features:
• Heated rear window.
• Heated seats.
• Climate control.
• Heated steering wheel.
• Audio unit.
• Navigation system.
A message may appear in the information
display to alert you that battery protection
actions are active.
After battery replacement, or in some
cases after charging the battery with an
external charger, the battery management
system requires eight hours of vehicle sleep
time to relearn the battery state of charge.
During this time your vehicle must remain
fully locked with the ignition off.
Note: If you add electrical accessories or
components to the vehicle, it may adversely
affect battery performance and durability.
This may also affect the performance of
other electrical systems in the vehicle.
Battery Disposal Make sure that you dispose of
old batteries in an
environmentally friendly way.
Seek advice from your local authority
about recycling old batteries. ADJUSTING THE HEADLAMPS
Vertical Aim Adjustment
The headlamps on your vehicle are
properly aimed at the assembly plant. If
your vehicle has been in an accident,
contact an authorized dealer to check and
realign your headlamps.
Headlamp Aiming Target
8 feet (2.4 m).
A
Center height of lamp to ground.
B
25 feet (7.6 m).
C
Horizontal reference line.
D
1. Park your vehicle directly in front of a wall or screen on a level surface,
approximately
25 ft (7.6 m) away.
2. Measure the height from the center of your headlamp, indicated by a 3
millimeter circle on the lens, to the
ground and mark an
8 ft (2.4 m)
horizontal reference line on the vertical
wall or screen at this height, a piece of
masking tape works well.
3. Switch on the low beam headlamps to
illuminate the wall or screen and open
the hood. Cover one of the headlamps
so no light hits the wall.
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4. On the wall or screen, observe a light
pattern with a distinct horizontal edge
toward the right. If this edge is not at
the horizontal reference line, adjust the
beam so the edge is at the same height
as the horizontal reference line. 5. Locate the vertical adjuster on each
headlamp. Use a #2 Phillips
screwdriver to turn the adjuster either
counterclockwise or clockwise in order
to adjust the vertical aim of the
headlamp.
6. Repeat Steps 3 through 7 to adjust the
other headlamp.
7. Close the hood and turn off the lamps.
Horizontal Aim Adjustment
Horizontal aim is not required for this
vehicle and is not adjustable.
EXTERIOR BULBS
EXTERIOR BULB SPECIFICATION
CHART
Replacement bulbs are specified in the
chart below. Headlamp bulbs must be
marked with an authorized D.O.T. marking
for North America to make sure they have
the proper lamp performance, light
brightness, light pattern and safe visibility.
The correct bulbs will not damage the
lamp assembly or void the lamp assembly
warranty and will provide quality bulb
illumination time. Power (Watt)
Specification
Lamp
16
912
Central high mounted stop lamp.
LED
LED
Central high mounted cargo lamp.
Vehicles with cargo box.
LED
LED
Daytime running lamp (XLT optional,
Lariat, Platinum, King Ranch, Limited).
55
H11
Daytime running lamp (XLT optional,
XL).
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Power (Watt)
Specification
Lamp
LED
LED
Front turn signal and parking lamp
(XLT optional, Lariat, Platinum, King
Ranch, Limited).
21/5
4257NA
Front turn signal and parking lamp
(XLT optional, XL).
LED
LED
Front fog lamp (XLT optional, Lariat,
Platinum, King Ranch, Limited).
55
9140
Front fog lamp (XL and XLT optional).
LED
LED
Front side marker lamp (Lariat
optional, Platinum, King Ranch,
Limited).
5
W5W
Front side marker lamp (Lariat
optional, XL, XLT).
LED
LED
Headlamp (XLT optional, Lariat, Plat-
inum, King Ranch, Limited).
55
H11
Headlamp low beam (XLT optional,
XL).
65
9005
Headlamp high beam (XLT optional,
XL).
5
W5W
License plate lamp.
LED
LED
Puddle lamp.
LED
LED
Rear cargo box lamp.
21
WTY21W
Rear turn signal (XL optional).
21/7
WT21W/7W
Rear lamp, stop lamp (XL optional).
21/7
WT21W/7W
Rear lamp, stop lamp, rear turn signal
and rear side marker lamp (XL
optional, XLT).
21
WT21W
Reversing lamp (XL optional).
LED
LED
Reversing lamp (XL optional, XLT).
LED
LED
Side turn signal lamp.
LED
LED
Taillamp-all functions (Lariat, Plat-
inum, King Ranch, Limited).
Note: LED lamps are not serviceable. See an authorized dealer if they fail.
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REMOVING A REAR LAMP
ASSEMBLY
1. Make sure the headlamps are off.
2. Open the tailgate to access the rear
lamp assemblies. 3. Remove the two bolts from the tail
lamp assembly. Then, carefully pull the
lamp assembly from the tailgate pillar
by releasing the two retaining tabs.
4. Disconnect the electrical connector from the bulb.
5. To install, reverse the removal procedure.
CHANGING A HEADLAMP BULB WARNING: Make sure the bulbs
have cooled down before removing
them. Failure to follow this warning could
result in serious personal injury.
Accessing the Halogen High Beam
and Low Beam Bulbs
1. Rotate the steering wheel to the opposite side of the bulb needing
replacement. 2.
Remove the screws and push pins from
the front of the wheel liner.
3. Pull the wheel liner back towards the tire to gain access to the bulbs.
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Replacing the Halogen High Beam
and Low Beam Bulbs
Low beam headlamp bulb.
A.
Turn signal lamp bulb.
B.
High beam headlamp bulb.
C. 1. Make sure the headlamps are off.
2.
For the high beam and low beam bulbs,
remove the rubber cap to access the
bulbs.
3. Remove the bulb holder from the lamp
assembly by turning it
counterclockwise and pulling it straight
out.
4. Disconnect the bulb from the electrical
connector.
5. To install, reverse the removal procedure.
Note: Handle a halogen headlamp bulb
carefully and keep out of children ’s reach.
Grasp the bulb only by its plastic base and
do not touch the glass. The oil from your
hand could cause the bulb to break the next
time the headlamps are operated.
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Note:
If the bulb is accidentally touched,
clean it with rubbing alcohol before
installing it.
CHANGING A FRONT TURN
SIGNAL LAMP BULB WARNING: Make sure the bulbs
have cooled down before removing
them. Failure to follow this warning could
result in serious personal injury.
1. Rotate the steering wheel to the opposite side of the bulb needing
replacement. 2.
Remove the screws and push pins from
the front of the wheel liner.
3. Pull the wheel liner back toward the tire to gain access to the bulb. Low beam headlamp bulb.
A.
Turn signal lamp bulb.
B.
High beam headlamp bulb.
C.
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