2021 FORD F-350 warning light

SITTING IN THE CORRECT
POSITION
WARNING: Sitting improperly, out
of position or with the seatback reclined
too far can take weight off the seat
cushion and affect the decision of the
passenger sensing system, resulting in
serious injury or death in the event of a
crash. Always sit upright against your
seat back, with your feet on the floor. WARNING: Do not recline the seat
backrest too far as this can cause the
occupant to slide under the seatbelt,
resulting in personal injury in the event
of a crash. WARNING:
Do not place objects
higher than the top of the seat backrest.
Failure to follow this instruction could
result in personal injury or death in the
event of a sudden stop or crash. When you use them properly, the seat,
head restraint, seatbelt and airbags will
provide optimum protection in the event
of a crash. We recommend that you follow these
guidelines:
•
Sit in an upright position with the base
of your spine as far back as possible.
• Do not recline the seat backrest so that
your torso is more than 30 degrees
from the upright position.
• Adjust the head restraint so that the
top of it is level with the top of your
head and as far forward as possible.
Make sure that you remain
comfortable.
• Keep sufficient distance between
yourself and the steering wheel. We
recommend a minimum of
10 in
(25 cm) between your breastbone and
the airbag cover.
• Hold the steering wheel with your arms
slightly bent.
• Bend your legs slightly so that you can
press the pedals fully.
• Position the shoulder strap of the
seatbelt over the center of your
shoulder and position the lap strap
tightly across your hips.
Make sure that your driving position is
comfortable and that you can maintain full
control of your vehicle.
HEAD RESTRAINTS WARNING:
Fully adjust the head
restraint before you sit in or operate your
vehicle. This will help minimize the risk
of neck injury in the event of a crash. Do
not adjust the head restraint when your
vehicle is moving.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- SeatsE68595

Use your vehicle key to lock the storage
space. See Keys and Remote Controls
(page 55).
HEATED SEATS
(IF EQUIPPED) WARNING: People who are unable
to feel pain to their skin because of
advanced age, chronic illness, diabetes,
spinal cord injury, medication, alcohol
use, exhaustion or other physical
conditions, must exercise care when
using the heated seat. The heated seat
may cause burns even at low
temperatures, especially if used for long
periods of time. Do not place anything
on the seat that insulates against heat,
such as a blanket or cushion. This may
cause the heated seat to overheat. Do
not puncture the seat with pins, needles
or other pointed objects. This may
damage the heating element which may
cause the heated seat to overheat. An
overheated seat may cause serious
personal injury.
Do not do the following:
• Place heavy objects on the seat.
• Operate the heated seat if water or any
other liquid spills on the seat. Allow the
seat to dry thoroughly.
Note: The engine must be running to use
this feature. Press the heated seat symbol to cycle
through the various heat settings and off.
More indicator lights indicate warmer
settings.
Note:
The heated seats may remain on
after you remote start your vehicle, based
on your remote start settings. The heated
seats may also turn on when you start your
vehicle if they were on when you switched
your vehicle off.
Rear Heated Seats
(If Equipped) WARNING: People who are unable
to feel pain to their skin because of
advanced age, chronic illness, diabetes,
spinal cord injury, medication, alcohol
use, exhaustion or other physical
conditions, must exercise care when
using the heated seat. The heated seat
may cause burns even at low
temperatures, especially if used for long
periods of time. Do not place anything
on the seat that insulates against heat,
such as a blanket or cushion. This may
cause the heated seat to overheat. Do
not puncture the seat with pins, needles
or other pointed objects. This may
damage the heating element which may
cause the heated seat to overheat. An
overheated seat may cause serious
personal injury.
Do not do the following:
• Place heavy objects on the seat.
• Operate the heated seat if water or any
other liquid spills on the seat. Allow the
seat to dry thoroughly.
Note: The engine must be running to use
this feature.
The rear seat heat controls are on the rear
of the center console.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- SeatsE146322

UNIVERSAL GARAGE DOOR
OPENER
HomeLink Wireless Control
System
WARNING: Do not use the system
with any garage door opener that does
not have the safety stop and reverse
feature as required by U.S. Federal
Safety Standards (this includes any
garage door opener manufactured
before April 1, 1982). A garage door
opener which cannot detect an object,
signaling the door to stop and reverse,
does not meet current federal safety
standards. Using a garage door opener
without these features increases the risk
of serious injury or death.
Note: Make sure that the garage door and
security device are free from obstruction
when you are programming. Do not program
the system with the vehicle in the garage.
Note: Make sure you keep the original
remote control transmitter for use in other
vehicles as well as for future system
programming.
Note: We recommend that upon the sale
or lease termination of your vehicle, you
erase the programmed function buttons for
security reasons. See Erasing the Function
Button Codes
later in this section.
Note: You can program a maximum of
three devices. To change or replace any of
the three devices after it has been initially
programmed, you must first erase the
current settings. See Erasing the Function
Button Codes
. The universal garage door opener replaces
the common hand-held garage door
opener with a three-button transmitter
integrated into the driver
’s sun visor.
The system includes two primary features,
a garage door opener and a platform for
remote activation of devices within the
home. You can program garage doors as
well as entry gate operators, security
systems, entry door locks and home or
office lighting.
Additional system information can be
found online at www.homelink.com,
www.youtube.com/user/HomeLinkGentex
or by calling the toll-free help line at
1-800-355-3515.
In-Vehicle Programming
This process is to program your in-vehicle
HomeLink function button with your
hand-held transmitter.
Note: The programming steps below
assume you will be programming HomeLink
that was not previously programmed. If your
HomeLink was previously programmed, you
may need to erase your HomeLink buttons.
See Erasing the Function Button Codes.
Note: Put a new battery in the hand-held
transmitter. This allows for quicker training
and accurate transmission of the
radio-frequency signal.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Garage Door Opener
(If Equipped)E188211

12 V DC Power Point
WARNING: Do not plug optional
electrical accessories into the cigar
lighter socket. Incorrect use of the cigar
lighter can cause damage not covered
by the vehicle warranty, and can result
in fire or serious injury.
Note: When you switch the ignition on, you
can use the socket to power
12 V appliances
with a maximum current rating of 20 A20
amps.
Note: Do not plug in any device that
supplies power to the vehicle through the
power points, this may result in damage to
vehicle systems.
Note: Do not hang any accessory from the
accessory plug.
Note: Do not use the power point over the
vehicle capacity of 12 V DC 240 W or a fuse
may blow.
Note: Always keep the power point caps
closed when not in use.
Do not insert objects other than an
accessory plug into the power point. This
damages the power point and may blow
the fuse.
Run the vehicle for full capacity use of the
power point.
To prevent the battery from running out of
charge:
• Do not use the power point longer than
necessary when the engine is off.
• Do not leave devices plugged in
overnight or when you park your vehicle
for extended periods. 110 V 400 Watt AC Power Point
(If
Equipped) WARNING:
Do not keep electrical
devices plugged in the power point
whenever the device is not in use. Do not
use any extension cord with the 110 volt
AC power point, since it will defeat the
safety protection design. Doing so may
cause the power point to overload due
to powering multiple devices that can
reach beyond the 400 watt load limit
and could result in fire or serious injury.
Note: This feature works only when you
have the ignition switched on.
Note: This feature has a maximum output
of 400 watts when the vehicle is in park (P).
Note: While in drive (D), the maximum
outlet output is 300 watts.
Note: When powering electric devices that
require more than 10 watts in vehicles
equipped with keyless start, the engine must
remain running. If the engine is turned off or
you switch the ignition to accessory mode,
plugged in devices will not be charged.
You can use the power point for electric
devices that require up to 400 watts. It is
on the instrument panel, and the rear of
the center console. 168
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Auxiliary Power PointsE191617

When the indicator light on the power point
is:
•
On: The power point is working, the
ignition is on and a device is plugged
in.
• Off: The power point is off, the ignition
is off or no device is plugged in.
• Flashing: The power point is in fault
mode.
The power outlet temporarily turns off
power when in fault mode if the device
exceeds the 400 watt limit. Unplug your
device and switch the ignition off. Switch
the ignition back on, but do not plug your
device back in. Let the system cool off and
switch the ignition off to reset the fault
mode. Switch the ignition back on and
make sure the indicator light remains on.
You can use the 400 watt power outlet for
these types of electric devices:
• Electric hand drills.
• Rechargeable power tools.
• Video games.
• Laptops.
• Televisions.
Note: Max 400W - when the vehicle is
parked and 300W - when the vehicle is
driving.
Do not use the power point for certain
electric devices, including:
• Cathode-ray, tube-type televisions.
• Motor loads, such as vacuum cleaners,
electric saws and other electric power
tools or compressor-driven
refrigerators.
• Measuring devices, which process
precise data, such as medical
equipment or measuring equipment.
• Other appliances requiring an
extremely stable power supply such as
microcomputer-controlled electric
blankets or touch-sensor lamps. Locations
Note:
Timed power points remain on for 30
minutes if the vehicle is in accessory mode.
If you switch the vehicle off, the timed
power points remain on for 75 minutes.
Power points may be in the following
locations:
• On the instrument panel.
• Inside the center console.
• On the rear of the center console.
• In the seat bin.
WIRELESS ACCESSORY
CHARGER (IF EQUIPPED) WARNING:
Wireless charging
devices can affect the operation of
implanted medical devices, including
cardiac pacemakers. If you have any
implanted medical devices, we
recommend that you consult with your
physician.
Tests on this equipment show that it
complies with part 18 of the FCC Rules.
• This equipment generates, uses and
can radiate radio frequency energy and
may cause harmful interference to
radio communications. There is no
guarantee that the interference will not
occur in a particular installation. If this
equipment does cause harmful
interference to radio or television
reception, please consult the dealer.
• This product is not end-user
serviceable.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Auxiliary Power Points

III (start) - Cranks the engine.
KEYLESS STARTING
(IF EQUIPPED)
Note: The keyless starting system may not
function if the key is close to metal objects
or electronic devices such as cellular
phones.
Note: A valid key must be located inside
your vehicle to switch the ignition on and
start the engine. The keyless starting system has three
modes:
Off:
Turns the ignition off.
• Without applying the clutch pedal for
manual transmissions, or brake pedal
for automatic transmissions, press and
release the button once when the
ignition is in the on mode, or when the
engine is running but the vehicle is not
moving.
On:
All electrical circuits are operational
and the warning lamps and indicators
illuminate.
• Without applying the clutch pedal for
manual transmissions, or brake pedal
for automatic transmissions, press and
release the button once.
Start:
Starts the vehicle. •
Press the clutch pedal for manual
transmissions, or brake pedal for
automatic transmissions, and then
press the button for any length of time.
An indicator light on the button
illuminates when then ignition is on and
when the engine starts.
STARTING A GASOLINE
ENGINE - 6.2L/7.3L
When you start the engine, the idle speed
increases. This helps to warm up the
engine.
If the engine idle speed does not slow
down, see an authorized dealer.
Before starting the engine check the
following:
• Make sure all occupants fasten their
seat belt.
• Make sure the headlamps and
electrical accessories are off.
• Make sure the parking brake is on.
• Make sure the transmission is in park
(P).
• Turn the ignition key to the on position.
Note: Do not touch the accelerator pedal.
1. Fully press the brake pedal.
2. Turn the key to the start position to start your vehicle.
3. When the engine starts, release the key
and then gradually release the brake
pedal as the engine speed increases.
Note: The engine may continue cranking
for up to 15 seconds or until it starts.
Note: If you cannot start the engine on the
first try, wait for a short period and try again.
Vehicles with an Ignition Key
Note: Do not touch the accelerator pedal.
1. Fully press the brake pedal.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Starting and Stopping the EngineE144447

Automatic Engine Shutdown
If your vehicle is equipped with a keyless
ignition, it has a feature that automatically
shuts down the engine if it has been idling
for an extended period. The ignition also
turns off in order to save battery power.
Before the engine shuts down, a message
appears in the information display showing
a timer counting down from 30 seconds.
If you do not intervene within 30 seconds,
the engine shuts down. Another message
appears in the information display to
inform you that the engine has shut down
in order to save fuel. Start your vehicle as
you normally do.
Cold Weather Starting
WARNING: Do not use starting
fluid, for example ether, in the air intake
system. Such fluid could cause
immediate explosive damage to the
engine and possible personal injury. WARNING:
Do not mix diesel with
gasoline, gasohol or alcohol. This could
cause an explosion.
We recommend that the engine block
heater be used for starting when the
temperature is -9°F (-23°C) or colder. See
Engine Block Heater
(page 182).
When operating in cold weather, you may
use Motorcraft® cetane improvers or
non-alcohol-based cetane improvers from
a reputable manufacturer as needed. Switch the ignition on. Do not
start the engine until the
glow-plug indicator turns off. When the glow plug pre-heat indicator
turns off, turn the key to start. After you
start the engine, the glow plugs may
remain on for a period. If you do not start
the engine before the glow plug activation
time ends, you need to reset the glow plugs
by switching the ignition off. After the
engine starts, allow it to idle for about 15
seconds. This protects the engine. Do not
increase engine speed until the oil pressure
gauge indicates normal pressure.
Cold Weather Operation
Note:
Idling in cold weather does not heat
the engine to its normal operating
temperature. Long periods of idling,
especially in cold weather, can cause a
buildup of deposits which can cause engine
damage.
Change to a lighter grade engine oil to
make starting easier under these
conditions. Refer to engine oil
specifications. See
Engine Oil Capacity
and Specification (page 449).
Diesel fuel is adjusted seasonally for cold
temperatures. Diesel fuel which has not
been properly formulated for the ambient
conditions may gel which can clog the fuel
filters. One indication that the fuel filter(s)
may be clogged is if the engine starts, stalls
after a short time, and then does not
restart. If you have been using biodiesel,
you may need to use a fuel with lower
biodiesel content, try another brand, or
discontinue using biodiesel. Do not use
alcohol based additives to correct fuel
gelling. This may result in damage to the
fuel injectors and system. Use the proper
anti-gel and performance improvement
product. See
Engine Oil Capacity and
Specification (page 449).
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Starting and Stopping the Engine

WARNING: Stop refueling after the
fuel pump nozzle automatically shuts
off for the second time. Failure to follow
this will fill the expansion space in the
fuel tank and could lead to fuel
overflowing. WARNING: Do not remove the fuel
pump nozzle from its fully inserted
position when refueling.
Use the following guidelines to avoid
electrostatic charge build-up when filling
an ungrounded fuel container:
• Place approved fuel container on the
ground.
• Do not fill a fuel container while it is in
the vehicle - including the cargo area.
• Keep the fuel pump nozzle in contact
with the fuel container while filling.
• Do not use a device that would hold
the fuel pump handle in the fill position.
Fuel Filler Cap WARNING: The fuel system may
be under pressure. If you hear a hissing
sound near the fuel filler inlet, do not
refuel until the sound stops. Otherwise,
fuel may spray out, which could cause
serious personal injury.
Note: If you must replace the fuel filler cap,
replace it with a fuel filler cap designed for
your vehicle. The vehicle warranty may be
void for any damage to the fuel tank or fuel
system if you do not use the correct genuine
Ford or Motorcraft® fuel filler cap.
When fueling your vehicle:
1. Put your vehicle in park (P).
2. Switch the engine off. 3. Carefully turn the filler cap
counterclockwise until it spins off.
4. Pull to remove the cap from the fuel filler pipe.
5. To install the cap, align the tabs on the
cap with the notches on the filler pipe.
6. Turn the filler cap clockwise until it clicks at least once.
If the Check Fuel Cap light or a Check Fuel
Cap message appears in the instrument
cluster and stays on after you start the
engine, you may not have installed the fuel
filler properly.
If the fuel cap light remains on, at the next
opportunity, safely pull off of the road,
remove the fuel filler cap, align the cap
properly and reinstall it. The check fuel cap
light or Check fuel cap message may not
reset immediately. It may take several
driving cycles for the indicators to turn off.
A driving cycle consists of an engine
start-up, after four or more hours with the
engine off, followed by normal city and
highway driving.
REFUELING - DIESEL WARNING: Read and follow all the
instructions on the pump island. WARNING:
Stay outside your
vehicle and do not leave the fuel pump
unattended when refueling your vehicle. WARNING:
Keep children away
from the fuel pump. Never let children
pump fuel. WARNING:
Wait at least five
seconds before removing the fuel pump
nozzle to allow any residual fuel to drain
into the fuel tank.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Fuel and Refueling