2021 FORD F-150 Owners Manual

CHECKING THE SELECTIVE
CATALYTIC REDUCTION
SYSTEM STATUS
The information display shows a series of
messages about the amount of diesel
exhaust fluid available. A systems check
displays messages indicating the amount
of diesel exhaust fluid available or displays
a warning message indicating the
approximate distance remaining as the
fluid in the diesel exhaust fluid tank nears
empty. See Selective Catalytic
Reduction System – Information
Messages
(page 277).
DIESEL EXHAUST FLUID
CAPACITY AND
SPECIFICATION
For filling information please refer to the
Capacities and Specifications section of
the owner's manual. See Diesel Exhaust
Fluid Capacity and Specification (page
277
). SELECTIVE CATALYTIC
REDUCTION SYSTEM –
TROUBLESHOOTING
SELECTIVE CATALYTIC
REDUCTION SYSTEM – WARNING
LAMPS As the diesel exhaust fluid level
nears empty, the warning
symbol displays and a series of
tones and messages starting at
500 mi
(800 km) remaining before diesel exhaust
fluid is depleted. The warning symbol and
messages continue until you refill the
diesel exhaust fluid tank.
The warning lamp illuminates and a
message appears in the information
display if the system becomes
contaminated or inoperative.
SELECTIVE CATALYTIC REDUCTION SYSTEM – INFORMATION
MESSAGES Action
Message
The distance you can travel before depleting the remainingdiesel exhaust fluid. Refill as soon as possible.
DEF Level Range: XX mi/
km Refill Now
Your diesel exhaust fluid is nearing empty. Your vehicle ’s top
speed will become limited in the displayed distance. You must
replenish the diesel exhaust fluid to resume normal operation of your vehicle. See
Diesel Exhaust Fluid Capacity and
Specification (page 277).
DEF Level Empty Speed
Limited to XX MPH / km/ h in XX mi/km
Your remaining diesel exhaust fluid has depleted. Your speedwill be limited upon restart. You must replenish the diesel
exhaust fluid to resume normal operation of your vehicle. See Diesel Exhaust Fluid Capacity and Specification
(page
277).
DEF Level Empty Speed
Limited to XX MPH/km/ h Upon Restart
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Action
Message
The diesel exhaust fluid is empty. You must replenish thediesel exhaust fluid to resume normal operation of your
vehicle. See Diesel Exhaust Fluid Capacity and Specific- ation (page 277).
DEF Level Low Speed
Limited to XX MPH/km/ h
The selective catalytic reduction system detects low exhaustfluid. The engine will eventually enter into an idle only mode.
You must replenish the diesel exhaust fluid to resume normal operation of your vehicle. See
Diesel Exhaust Fluid Capa-
city and Specification (page 277).
DEF Level Empty Engine
Idled Soon
The vehicle will enter into an idle only mode. You must
replenish the diesel exhaust fluid to resume normal operation of your vehicle. See
Diesel Exhaust Fluid Capacity and
Specification (page 277).
DEF Level Empty Engine
Idled See Manual
The selective catalytic reduction system detects a fault. Thevehicle ’s top speed will become limited in the displayed
distance and count down from this point. Have your vehicle checked as soon as possible.
DEF Fault Speed Limited
to XX MPH/km/h in XX mi/km
The selective catalytic reduction system detects a fault. The
vehicle ’s top speed will become limited upon restarting. Have
your vehicle checked as soon as possible.
DEF Fault Speed Limited
to XX MPH/km/h Upon Restart
The selective catalytic reduction system detects a fault. Thevehicle ’s top speed is limited. Have your vehicle checked as
soon as possible.
DEF Fault Speed Limited
to XX MPH/km/h
The selective catalytic reduction system detects a fault. The
engine will eventually enter into an idle only mode. Have your vehicle checked as soon as possible.
DEF Fault Engine Idled
Soon
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(If Equipped)

WHAT IS THE CATALYTIC
CONVERTER
The catalytic converter is part of your
vehicle's emissions system and filters
harmful pollutants from the exhaust gas.
CATALYTIC CONVERTER
PRECAUTIONS
WARNING: Do not park, idle or
drive your vehicle on dry grass or other
dry ground cover. The emission system
heats up the engine compartment and
exhaust system, creating the risk of fire. WARNING:
The normal operating
temperature of the exhaust system is
very high. Never work around or attempt
to repair any part of the exhaust system
until it has cooled. Use special care when
working around the catalytic converter.
The catalytic converter heats up to a very
high temperature after only a short
period of engine operation and stays hot
after the engine is switched off. WARNING:
Exhaust leaks may
result in entry of harmful and potentially
lethal fumes into the passenger
compartment. If you smell exhaust
fumes inside your vehicle, have your
vehicle inspected immediately. Do not
drive if you smell exhaust fumes.
To avoid damaging the catalytic converter:
• Do not crank the engine for more than
10 seconds at a time.
• Do not run the engine with a spark plug
lead disconnected.
• Do not push-start or tow-start your
vehicle. Use booster cables. See Jump
Starting the Vehicle
(page 486). •
Use the correct fuel.
See Fuel and
Refueling (page 255).
• Do not switch the ignition off when your
vehicle is moving.
• Avoid running out of fuel.
• Have the items listed in scheduled
maintenance information performed
according to the specified schedule.
Note: Do not make any unauthorized
changes to your vehicle or engine. By law,
vehicle owners and anyone who
manufactures, repairs, or services a fleet of
vehicles are not permitted to intentionally
remove an emission control device or
prevent it from working.
CATALYTIC CONVERTER –
TROUBLESHOOTING
CATALYTIC CONVERTER –
WARNING LAMPS
Your vehicle has an on-board diagnostics
system that monitors the emission control
system. If any of the following warning
lamps illuminate, this may indicate that
the on-board diagnostics system has
detected an emission control system
malfunction. Continuing to drive your vehicle may cause
reduced power or the engine to stop.
Failure to respond to a warning lamp may
cause damage that your vehicle Warranty
may not cover. Have your vehicle checked
as soon as possible.
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WHAT IS THE HIGH VOLTAGE
BATTERY
The high voltage battery is a highly
sophisticated lithium ion battery system,
used to store electrified propulsion energy
to power the vehicle.
HIGH VOLTAGE BATTERY
PRECAUTIONS
WARNING: This battery pack
should only be serviced by an authorized
electric vehicle technician. Improper
handling can 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. WARNING:
Do not touch the
electronic ignition system parts after you
have switched the ignition on or when
the engine is running. The system
operates at high voltage. Failure to
adhere to this warning could result in
serious personal injury or death. WARNING:
Keep your hands and
clothing clear of the engine cooling fan.
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AUTOMATIC TRANSMISSION
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:
Do not use tow/haul
when the road surface is slippery. Failure
to follow this instruction could result in
the loss of control of your vehicle. WARNING:
When your vehicle is
stationary, keep the brake pedal fully
pressed when shifting gears. Failure to
follow this instruction could result in
personal injury, death or property
damage. WARNING:
Do not apply the brake
pedal and accelerator pedal
simultaneously. Applying both pedals
simultaneously for more than a few
seconds will limit engine performance,
which may result in difficulty maintaining
speed in traffic and could lead to serious
injury.
AUTOMATIC TRANSMISSION
POSITIONS
PARK (P)
This position locks the driveline and
prevents the wheels from turning. Come
to a complete stop before putting your
vehicle into and out of park (P). The electric parking brake could apply
when you shift to park (P) without the
brake pedal fully pressed. The electric
parking brake applies when you shift to
park (P) on large slopes. The electric
parking brake releases with the drive away
release function or manually. See Electric
Parking Brake
(page 311).
Note: A warning tone sounds if you open
the driver door and you have not shifted the
transmission selector to park (P).
See
Automatic Return to Park (P) (page 286).
REVERSE (R) WARNING:
Move the transmission
selector lever to reverse (R) only when
your vehicle is stationary and the engine
is at idle speed.
This position allows your vehicle to move
backward. Come to a complete stop
before shifting into and out of reverse (R).
NEUTRAL (N) WARNING:
In neutral (N) your
vehicle is free to roll.
In neutral (N) power is not transmitted to
the driven wheels.
DRIVE (D)
Drive (D) is the normal driving position, and
allows automatic upshifts and downshifts
through all available gears.
MANUAL (M)
To select manual mode press the (M)
button on the shifter.
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Note:
In order to activate manual mode
your vehicle must be in drive (D).
This position allows you to change gears
up or down as preferred using + or -
buttons on the shifter lever.
To return to the normal drive (D) position,
press the (M) button again to exit manual
mode.
SHIFTING YOUR VEHICLE INTO
GEAR
Console Shifter
The transmission selector is on the center
console. 1. Press and hold the brake pedal.
2. Move the lever to select a position.
Note:
The position illuminates on the
transmission selector.
3. Press the manual (M) button when your vehicle is in drive (D) to enter or
exit a mode.
Column Shifter
The transmission selector is on the steering
column. 1. Press and hold the brake pedal.
2. Move the lever to select a position.
3. Press the manual (M) button when
your vehicle is in drive (D) to enter or
exit a mode.
SHIFTING YOUR VEHICLE INTO
GEAR - RAPTOR
The transmission selector is on the center
console. 1. Press and hold the brake pedal.
2. Move the lever to select a position.
Note:
The position illuminates on the
transmission selector.
3. Press the manual (M) button when your vehicle is in drive (D) to enter or
exit a mode.
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SHIFTING YOUR VEHICLE INTO
GEAR - POLICE RESPONDER
The transmission selector is on the steering
column.
1. Press and hold the brake pedal.
2. Move the lever to select a position.
3. Press the manual (M) button when
your vehicle is in drive (D) to enter or
exit a mode.
MANUALLY SHIFTING GEARS
SHIFTING USING THE PADDLE
SHIFTERS - RAPTOR
The instrument cluster displays the current
gear. The current gear flashes when your
vehicle cannot shift into the requested
gear. Your vehicle will not shift if the
requested gear raises or lowers the engine
speed beyond the limit.
Your vehicle could shift when you fully
press the accelerator or brake pedal.
Note: Prolonged driving with high engine
speed could cause vehicle damage not
covered by the vehicle warranty.
Note: Drive modes could affect when the
vehicle shifts into the requested gear. Manually Shifting Gears in Drive (D)
Use this feature to temporarily change
gears.
Note:
We recommend using this feature for
engine braking or driving on hilly or
mountainous roads.
• Pull any paddle to switch the feature
on.
• Pull the right (+) paddle to upshift.
• Pull the left (-) paddle to downshift.
• Hold the (+) paddle for a few seconds
to switch the feature off.
Note: The feature switches off after a short
period of time if you do not pull either
paddle.
Manually Shifting Gears in Manual (M)
Use this feature to select a specific gear.
Note: We recommend using this feature for
engine braking, driving on hilly or
mountainous roads, or when towing a trailer.
See Towing a Trailer (page 428).
• Shift to manual (M) to switch the
feature on.
• Pull the right (+) paddle to upshift.
• Pull the left (-) paddle to downshift.
• Shift to drive (D) to switch the feature
off.
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SHIFTING USING THE BUTTONS
ON THE SELECTOR LEVER
Center Console Shifter
The instrument cluster displays the current
gear. The current gear flashes when your
vehicle cannot shift into the requested
gear. Your vehicle will not shift if the
requested gear raises or lowers the engine
speed beyond the limit.
Your vehicle may shift when you fully press
the accelerator or brake pedal.
Note:
Prolonged driving with high engine
speed could cause vehicle damage not
covered by the vehicle warranty.
Note: Drive modes could affect when the
vehicle shifts into the requested gear. Manually Shifting Gears in Manual (M)
Use this feature to select a specific gear.
Note:
We recommend using this feature for
engine braking, driving on hilly or
mountainous roads, or when towing a trailer.
See Towing a Trailer (page 428). •
Shift to manual (M) to switch the
feature on.
• Press the upper (+) button to upshift.
• Press the lower (-) button to
downshift.
• Shift to drive (D) to switch the feature
off.
Column Shifter
The instrument cluster displays the current
gear. The current gear flashes when your
vehicle cannot shift into the requested
gear. Your vehicle will not shift if the
requested gear raises or lowers the engine
speed beyond the limit.
Your vehicle could shift when you fully
press the accelerator or brake pedal.
Note: Prolonged driving with high engine
speed could cause vehicle damage not
covered by the vehicle warranty.
Note: Drive modes could affect when the
vehicle shifts into the requested gear. Manually Shifting Gears in Manual (M)
Use this feature to select a specific gear.
Note:
We recommend using this feature for
engine braking, driving on hilly or
mountainous roads, or when towing a trailer.
See Towing a Trailer (page 428).
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