2021 FORD F-250 battery

The information contained in this publication was correct at the time of going to print. In the interest of
continuous development, we reserve the right to change specifications, design or equipment at any time
without notice or obligation. No part of this publication may be reproduced, transmitted, stored in a
retrieval system or translated into any language in any form by any means without our written permission.
Errors and omissions excepted.
© Ford Motor Company 2021
All rights reserved.
Part Number: 202008 20210201134948
California Proposition 65
WARNING: Operating, servicing and
maintaining a passenger vehicle or off-highway
motor vehicle can expose you to chemicals
including engine exhaust, carbon monoxide,
phthalates, and lead, which are known to the
State of California to cause cancer and birth
defects or other reproductive harm. To minimize
exposure, avoid breathing exhaust, do not idle the
engine except as necessary, service your vehicle
in a well-ventilated area and wear gloves or wash
your hands frequently when servicing your vehicle.
For more information go to
www.P65Warnings.ca.gov/passenger-vehicle. 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
.

Getting Assistance Outside the U.S. and
Canada .......................................................335
Ordering Additional Owner's Literature ........................................................................\
337
Reporting Safety Defects (U.S. Only) ........................................................................\
337
Reporting Safety Defects (Canada Only) ........................................................................\
337
Fuses
Fuse Specification Chart .........................
339
Changing a Fuse .........................................
346
Maintenance
General Information ..................................
348
Opening and Closing the Hood .............
348
Under Hood Overview - 6.2L .................
349
Under Hood Overview - 6.7L Diesel .....
350
Under Hood Overview - 7.3L ....................
351
Engine Oil Dipstick - 6.2L .........................
352
Engine Oil Dipstick - 6.7L Diesel ............
352
Engine Oil Dipstick - 7.3L ..........................
352
Engine Oil Check - 6.2L .............................
352
Engine Oil Check - 6.7L Diesel ...............
354
Engine Oil Check - 7.3L .............................
355
Changing the Engine Oil and Oil Filter ........................................................................\
356
Oil Change Indicator Reset .....................
356
Changing the Engine Air Filter - 6.2L ........................................................................\
357
Changing the Engine Air Filter - 6.7L Diesel ..........................................................
358
Changing the Engine Air Filter - 7.3L ....
360
Draining the Fuel Filter Water Trap - 6.7L Diesel ...........................................................
361
Engine Coolant Check - 6.2L .................
364
Engine Coolant Check - 6.7L Diesel .....
368
Engine Coolant Check - 7.3L ....................
371
Automatic Transmission Fluid Check ........................................................................\
376
Transfer Case Fluid Check ........................
377Brake Fluid Check
........................................
377
Power Steering Fluid Check ....................
378
Changing the 12V Battery ........................
379
Adjusting the Headlamps ........................
381
Washer Fluid Check ...................................
382
Fuel Filter - 6.2L/7.3L .................................
382
Checking the Wiper Blades ....................
382
Changing the Wiper Blades ....................
382
Changing a Bulb ..........................................
383
Changing the Engine-Mounted and Diesel Fuel Conditioner Module Fuel
Filters - 6.7L Diesel .................................
386
Spring U-Bolt Check - F-600 ................
389
Vehicle Care
General Information ...................................
391
Cleaning Products .......................................
391
Cleaning the Exterior .................................
392
Waxing ............................................................
393
Cleaning the Engine ...................................
393
Cleaning the Exhaust - 6.7L Diesel ......
394
Cleaning the Windows and Wiper Blades ........................................................................\
394
Cleaning the Interior ..................................
395
Cleaning the Instrument Panel and Instrument Cluster Lens .......................
397
Cleaning Leather Seats ............................
397
Repairing Minor Paint Damage .............
399
Cleaning the Wheels .................................
399
Vehicle Storage ...........................................
399
Wheels and Tires
General Information ..................................
402
Tire Care ........................................................
404
Using Snow Chains ....................................
420
Tire Pressure Monitoring System ...........
421
Changing a Road Wheel ..........................
429
Technical Specifications .........................
440
6
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Table of Contents

ABOUT THIS MANUAL
Thank you for choosing Ford. We
recommend that you take some time to
get to know your vehicle by reading this
manual. The more that you know about
your vehicle, the greater the safety and
pleasure you will get from driving it.
WARNING: Driving while
distracted can result in loss of vehicle
control, crash and injury. We strongly
recommend that you use extreme
caution when using any device that may
take your focus off the road. Your
primary responsibility is the safe
operation of your vehicle. We
recommend against the use of any
hand-held device while driving and
encourage the use of voice-operated
systems when possible. Make sure you
are aware of all applicable local laws
that may affect the use of electronic
devices while driving.
Note: This manual describes product
features and options available throughout
the range of available models, sometimes
even before they are generally available. It
may describe options not fitted to the
vehicle you have purchased.
Note: Some of the illustrations in this
manual may show features as used in
different models, so may appear different
to you on your vehicle.
Note: Always use and operate your vehicle
in line with all applicable laws and
regulations.
Note: Pass on this manual when selling
your vehicle. It is an integral part of your
vehicle.
This manual may qualify the location of a
component as left-hand side or right-hand
side. The side is determined when facing
forward in the seat. Right-hand side.
A
Left-hand side.
B
SYMBOLS GLOSSARY
These are some of the symbols you may
see on your vehicle. Air conditioning system
Air conditioning system lubricant
type
Anti-lock braking system
Avoid smoking, flames or sparks
Battery
Battery acid
Brake fluid - non petroleum
based
Brake system
9
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Your vehicle has electronic control units
that have data recording functionality and
the ability to permanently or temporarily
store data. This data could include
information on the condition and status of
your vehicle, vehicle maintenance
requirements, events and malfunctions.
The types of data that can be recorded are
described in this section. Some of the data
recorded is stored in event logs or error
logs.
Note:
Error logs are reset following a service
or repair.
Note: We may provide information in
response to requests from law enforcement,
other government authorities and third
parties acting with lawful authority or
through a legal process. Such information
could be used by them in legal proceedings.
Data recorded includes, for example:
• Operating states of system
components, for example, fuel level,
tire pressure and battery charge level.
• Vehicle and component status, for
example, wheel speed, deceleration,
lateral acceleration and seatbelt
status.
• Events or errors in essential systems,
for example, headlamps and brakes.
• System responses to driving situations,
for example, airbag deployment and
stability control.
• Environmental conditions, for example,
temperature.
Some of this data, when used in
combination with other information, for
example, an accident report, damage to a
vehicle or eyewitness statements, could
be associated with a specific person. Service Data
Service data recorders in your vehicle are
capable of collecting and storing
diagnostic information about your vehicle.
This potentially includes information about
the performance or status of various
systems and modules in the vehicle, such
as engine, throttle, steering or brake
systems. In order to properly diagnose and
service your vehicle, Ford Motor Company
(Ford of Canada in Canada), and service
and repair facilities may access or share
among them vehicle diagnostic
information received through a direct
connection to your vehicle when
diagnosing or servicing your vehicle.
Additionally, Ford Motor Company (Ford
of Canada, in Canada) may, where
permitted by law, use vehicle diagnostic
information for vehicle improvement or
with other information we may have about
you, for example, your contact information,
to offer you products or services that may
interest you. Data may be provided to our
service providers such as part suppliers
that may help diagnose malfunctions, and
who are similarly obligated to protect data.
We retain this data only as long as
necessary to perform these functions or to
comply with law. We may provide
information where required in response to
official requests to law enforcement or
other government authorities or third
parties acting with lawful authority or court
order, and such information may be used
in legal proceedings. For U.S. only (if
equipped), if you choose to use connected
apps and services, you consent that certain
diagnostic information may also be
accessed electronically by Ford Motor
Company and Ford authorized service
facilities, and that the diagnostic
information may be used to provide
services to you, personalizing your
experience, troubleshoot, and to improve
products and services and offer you
products and services that may interest
12
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Introduction

GENERAL INFORMATION ON
RADIO FREQUENCIES
This device complies with Part 15 of the
FCC Rules and with Industry Canada
license-exempt RSS standard(s).
Operation is subject to the following two
conditions: (1) This device may not cause
harmful interference, and (2) This device
must accept any interference received,
including interference that may cause
undesired operation.
WARNING: Changes or
modifications not expressively approved
by the party responsible for compliance
could void the user's authority to operate
the equipment. The term "IC:" before the
radio certification number only signifies
that Industry Canada technical
specifications were met.
The typical operating range for your
transmitter is approximately
33 ft (10 m).
Vehicles with the remote start feature will
have a greater range.
One of the following could cause a
decrease in operating range:
• Weather conditions.
• Nearby radio towers.
• Structures around the vehicle.
• Other vehicles parked next to your
vehicle.
The radio frequency used by your remote
control can also be used by other radio
transmitters, for example amateur radios,
medical equipment, wireless headphones,
wireless remote controls, cell phones,
battery chargers and alarm systems. If the
frequencies are jammed, you will not be
able to use your remote control. You can
lock and unlock the doors with the key.
Note: Make sure to lock your vehicle before
leaving it unattended. Note:
If you are in range, the remote control
will operate if you press any button
unintentionally.
Note: The remote control contains sensitive
electrical components. Exposure to moisture
or impact may cause permanent damage.
Intelligent Access
(If Equipped)
The system uses a radio frequency signal
to communicate with your vehicle and
authorize your vehicle to unlock when one
of the following conditions are met:
• You activate the front exterior door
handle switch.
• You press the luggage compartment
button.
• You press a button on the transmitter.
If excessive radio frequency interference
is present in the area or if the transmitter
battery is low, you may need to
mechanically unlock your door. You can
use the mechanical key blade in your
intelligent access key to open the driver
door in this situation. See
Remote
Control (page 55).
REMOTE CONTROL
(IF EQUIPPED)
Integrated Keyhead Transmitter
Use the key blade to start your vehicle and
unlock or lock the driver door from outside
your vehicle. The integrated keyhead
transmitter functions as a programmed
ignition key that operates all the locks and
starts your vehicle, as well as a remote
control.
55
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Keys and Remote Controls

Press the release button and pull the key
blade out.
Note:
Your vehicle keys came with a
security label that provides important key
cut information. Keep the label in a safe
place for future reference.
Replacing the Battery WARNING: Keep batteries away
from children to prevent ingestion.
Failure to follow this instruction could
result in personal injury or death. If
ingested, immediately seek medical
attention. WARNING:
If the battery
compartment does not securely close,
stop using the remote control and
replace it as soon as possible. In the
meantime, keep the remote control away
from children. Failure to follow this
instruction could result in personal injury
or death.
Note: Refer to local regulations when
disposing of transmitter batteries.
Note: Do not wipe off any grease on the
battery terminals or on the back surface of
the circuit board.
Note: Replacing the battery does not erase
the programmed key from your vehicle. The
transmitter should operate normally.
A message appears in the information
display when the remote control battery
is low. See
General Information (page
110).
Integrated Keyhead Transmitter
The remote control uses one coin-type
three-volt lithium battery CR2032 or
equivalent.
Press the button to release the key blade
before beginning the procedure. 57
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1. Insert a suitable tool, for example a
screwdriver, in the position shown and
gently push the clip.
2. Press the clip down to release the battery cover. 3. Carefully remove the cover.
Note:
Do not touch the battery contacts or
the printed circuit board with the
screwdriver.
4. Insert a suitable tool, for example a screwdriver, in the position shown to
release the battery. 5. Remove the battery.
6. Insert a new battery with the + facing
upward.
7. Reinstall the battery housing cover onto the transmitter.
Intelligent Access Key
The remote control uses one coin-type
three-volt lithium battery CR2450 or
equivalent. 1. Press the release button and pull the
key blade out.
58
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2. Twist a thin coin under the tab hidden
behind the key blade head to remove
the battery cover. 3. Insert a suitable tool, for example a
screwdriver, in the position shown and
carefully remove the battery.
4. Insert a new battery with the + facing upward.
5. Reinstall the battery housing cover onto the transmitter and install the key
blade.
Memory Feature (If Equipped)
You can use the remote control to recall
memory positions.
Press the unlock button on a linked remote
control to recall memory positions. If you
enable the easy entry and exit feature, the
seat moves to the easy entry position. The
seat moves to the driver memory position
when you switch the ignition on.
Linking a Preset Position to your
Remote Control
See
Memory Function (page 157).
59
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Keys and Remote ControlsE303824 E218402