2021 FORD F-350 climate control

•
Allow more distance for stopping with
a trailer attached. Anticipate stops and
brake gradually.
• Avoid parking on a grade. However, if
you must park on a grade:
1. Turn the steering wheel to point your vehicle tires away from traffic flow.
2. Set your vehicle parking brake.
3. Place the transmission in park (P).
4. Place wheel chocks in front and back of the trailer wheels. (Chocks not
included with vehicle.)
Your vehicle may be equipped with a
temporary or conventional spare tire. A
"temporary" spare tire is different in size
(diameter or width), tread-type
(All-Season or All Terrain) 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.
Launching or Retrieving a Boat or
Personal Watercraft (PWC)
Note: Disconnect the wiring to the trailer
before backing the trailer into the water.
Note: Reconnect the wiring to the trailer
after
you remove the trailer from the water.
When backing down a ramp during boat
launching or retrieval:
• Do not allow the static water level to
rise above the bottom edge of the rear
bumper.
• Do not allow waves to break higher
than
6 in (15 cm) above the bottom
edge of the rear bumper.
Exceeding these limits may allow water to
enter vehicle components:
• Causing internal damage to the
components.
• Affecting driveability, emissions, and
reliability. Replace the rear axle lubricant anytime
the rear axle has been submerged in water.
Water may have contaminated the rear
axle lubricant, which is not normally
checked or changed unless a leak is
suspected or other axle repair is required.
TOWING THE VEHICLE ON
FOUR WHEELS
WARNING:
If your vehicle has a
steering wheel lock make sure the
ignition is in the accessory or on position
when being towed.
Emergency Towing
If your vehicle becomes inoperable
(without access to wheel dollies,
car-hauling trailer, or flatbed transport
vehicle), it can be flat-towed (all wheels
on the ground, regardless of the powertrain
and transmission configuration) under the
following conditions:
• Your vehicle is facing forward for
towing in a forward direction.
• Place the transmission in neutral (N).
If you cannot move the transmission
into neutral (N), you may need to
override it. See
Transmission (page
207).
• Maximum speed is 35 mph (56 km/h).
• Maximum distance is
50 mi (80 km).
Recreational Towing
Note: Put your climate control system in
recirculated air mode to prevent exhaust
fumes from entering your vehicle.
See
Climate Control (page 143).
314
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Towing

Protected Component
Fuse
Rating
Fuse
Number
Power lumbar motor.
Wireless charging module.
Not used (spare).
20 A
4
Not used.
—
5
Power telescoping mirrors switch.
10 A
6
Front power windows switch.
Brake on-off switch.
10 A
7
Embedded modem.
5 A
8
Combined sensor module.
5 A
9
Not used.
—
10
Not used.
—
11
On-board diagnostic module.
7.5 A
12
Smart data link connector.
Climate control module.
Steering column control module.
7.5 A
13
Instrument cluster.
Not used.
15 A
14
SYNC.
15 A
15
Display.
Not used.
—
16
Active front steering module.
7.5 A
17
Park aid module.
Selectable drive modes switch.
7.5 A
18
Select shift switch.
Head up display.
5 A
19
Ignition switch.
5 A
20
Key inhibit solenoid.
Head up display.
5 A
21
In-vehicle temperature and humidity sensor.
Upfitter switches.
5 A
22
344
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Fuses

4. Press the brake pedal and start your
vehicle.
5. Run the engine until it reaches normal operating temperature. While the
engine is warming up, complete the
following: Reset the clock. Reset the
power windows bounce-back feature.
See Windows and Mirrors (page 95).
Reset the radio station presets. See
Audio System
(page 488).
6. Allow the engine to idle for at least one
minute.
7. Drive the vehicle at least 10 mi (16 km)
to completely relearn the idle trim and
fuel trim strategy.
Note: If you do not allow the engine to
relearn the idle and fuel trim strategy, the
idle quality of your vehicle may be adversely
affected until the engine computer
eventually relearns the idle trim and fuel
trim strategy.
Note: For flexible fuel vehicles, if you are
operating on E85, you may experience poor
starts or an inability to start the engine and
driveability problems until the fuel trim and
ethanol content have been relearned.
Make sure that you dispose of old batteries
in an environmentally friendly way. Seek
advice from your local authority about
recycling old batteries.
If storing your vehicle for more than 30
days without recharging the battery, we
recommend that you disconnect the
negative battery cable to maintain battery
charge for quick starting.
Battery Management System
(If
Equipped)
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 electrical systems to
protect the battery. Systems included are:
•
Heated rear window.
• Heated seats.
• Climate control.
• Heated steering wheel.
• Audio unit.
• Navigation system.
A message may appear in the information
displays to alert you that battery
protection actions are active. These
messages are only for notification that an
action is taking place, and not intended to
indicate an electrical problem or that the
battery requires replacement.
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 switched off.
Note: Prior to relearning the battery state
of charge, the battery management system
may temporarily disable some electrical
systems.
Electrical Accessory Installation
To make sure the battery management
system works correctly, do not connect an
electrical device ground connection
directly to the battery negative post. This
can cause inaccurate measurements of
the battery condition and potential
incorrect system operation.
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.
380
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Maintenance

Engine
•
Change the engine oil and filter prior to
storage because used engine oil
contains contaminates 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.
• We recommend that you change the
engine oil before you use your vehicle
again.
Fuel system
• Fill the fuel tank with high-quality fuel
until the first automatic shutoff of the
fuel pump nozzle.
Cooling system
• Protect against freezing temperatures.
• When removing your vehicle from
storage, check coolant fluid level.
Confirm that there are no cooling
system leaks and that fluid is at the
recommended level.
Disconnecting Your 12 Volt Battery
• Check and recharge as necessary. Keep
connections clean.
• If storing your vehicle for more than 30
days without recharging the battery,
we recommend that you disconnect
the battery cables to maintain battery
charge for quick starting.
Note: It is necessary to reset memory
features if you disconnect the battery
cables. Brakes
•
Make sure the brakes and parking brake
release fully.
Tires
• Maintain recommended air pressure.
Miscellaneous
• 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.
Removing Vehicle From Storage
When your vehicle is ready to come out of
storage, do the following:
• Wash your vehicle to remove any dirt
or grease film build-up on window
surfaces.
• Check windshield wipers for any
deterioration.
• Check under the hood for any foreign
material that may have collected
during storage such as mice or squirrel
nests.
• Check the exhaust for any foreign
material that may have collected
during storage.
• Check tire pressures and set tire
inflation per the Tire Label.
• Check brake pedal operation. Drive
your vehicle
15 ft (4.5 m) back and
forth to remove rust build-up.
• Check fluid levels (including coolant,
oil and gas) to make sure there are no
leaks, and fluids are at recommended
levels.
• If you remove the battery, clean the
battery cable ends and check for
damage.
400
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Vehicle Care

TIRE CARE
Information About Uniform
Tire Quality Grading
Tire Quality Grades apply to new
pneumatic passenger car tires.
The Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example: Treadwear 200
Traction AA Temperature A.
These Tire Quality Grades are
determined by standards that the
United States Department of
Transportation has set.
Tire Quality Grades apply to new
pneumatic passenger car tires.
They do not apply to deep tread,
winter-type snow tires,
space-saver or temporary use
spare tires, light truck or LT type
tires, tires with nominal rim
diameters of 10 to 12 inches or
limited production tires as defined
in Title 49 Code of Federal
Regulations Part 575.104 ©)(2). U.S. Department of
Transportation Tire quality
grades:
The U.S. Department of
Transportation requires Ford
Motor Company to give you the
following information about tire
grades exactly as the government
has written it.
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test course.
For example, a tire graded 150
would wear one and one-half (1
½) times as well on the
government course as a tire
graded 100. The relative
performance of tires depends
upon the actual conditions of their
use, however, and may depart
significantly from the norm due to
variations in driving habits, service
practices, and differences in road
characteristics and climate.
Traction AA A B C WARNING:
The traction
grade assigned to this tire is
based on straight-ahead braking
traction tests, and does not
include acceleration, cornering,
hydroplaning or peak traction
characteristics.
404
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Wheels and TiresE142542

non-recommended tires and wheels can
cause steering, suspension, axle, transfer
case or power transfer unit failure.
Follow the Ford recommended tire
inflation pressure found on the Safety
Compliance Certification Label (on the
door hinge pillar, door latch post or the
door edge that meets the door latch
post, next to the driver seat), or Tire
Label on the B-Pillar or the edge of the
driver door. Failure to follow the tire
pressure recommendations can cause
uneven treadwear patterns and
adversely affect the way your vehicle
handles.
WARNING: Do not use snow chains
on snow-free roads.
Note: Do not use snow chains on vehicles
with LT275/65R20 or LT 285/75R18 sized
tires.
The tires on your vehicle have all-weather
treads to provide traction in rain and snow.
However, in some climates, you may need
to use snow tires and cables. If you need
to use cables, we recommend that you use
steel wheels of the same size and
specification, as cables may chip
aluminum wheels.
Note: The suspension insulation and
bumpers will help prevent vehicle damage.
Do not remove these components from your
vehicle when using snow tires and chains.
Follow these guidelines when using snow
tires and chains:
• If possible, avoid fully loading your
vehicle.
• Use only SAE Class S chains.
• Install chains securely, verifying that
the chains do not touch any wiring,
brake lines or fuel lines.
• Only install snow chains on the rear
axle. •
For Dual Rear Wheel (DRW) vehicles,
only install snow chains on the outer
wheel of each pair.
• Drive cautiously. If you hear the chains
rub or bang against your vehicle, stop
and retighten the chains. If this does
not work, remove the chains to prevent
damage to your vehicle.
• Remove the tire chains when you no
longer need them. Do not use tire
chains on dry roads.
If you have any questions regarding snow
chains or cables, please contact your
authorized dealer.
TIRE PRESSURE MONITORING
SYSTEM
Vehicle Tire Pressure Monitoring
System WARNING:
The tire pressure
monitoring system is not a substitute for
manually checking tire pressures. You
should periodically check tire pressures
using a pressure gauge. Failure to
correctly maintain tire pressures could
increase the risk of tire failure, loss of
control, vehicle rollover and personal
injury. Check each tire, including the
spare, if provided, monthly when
cold and inflated to the inflation
pressure recommended by the vehicle
manufacturer on the vehicle placard or tire
inflation pressure label. If your vehicle has
tires of a different size than the size
indicated on the vehicle placard or tire
inflation pressure label, you should
determine the proper tire inflation pressure
for those tires.
421
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Wheels and Tires

USB and Media Player
Description
Voice Command
Play your music by category. 1
Play Album ___
Play Artist ___
Play Genre ___
Play Playlist ___
Play Song ___
Play Audiobook ___
Play Podcast ___
Browse music on a USB device.
Browse All Albums
Browse All Artists
Browse All Audiobooks
Browse All Genres
Browse All Playlists
Browse All Podcasts
Browse All Songs
Browse your music by category on a USB device. 1
Browse Album ___
Browse Artist ___
Browse Audiobook ___
Browse Genre ___
Browse Playlist ___
Browse Podcast ___
1 Add an album name, artist name, audiobook name, genre name, playlist name, podcast
name or track name to the command. Say the name exactly as it appears on your device.
Climate (If Equipped)
You can control the temperature of the
vehicle using voice commands. ___ is a dynamic listing, meaning that for
climate voice commands it can be the
desired degrees for the temperature
setting.
517
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- SYNC™ 3
(If Equipped)

Supported USB file systems include: FAT,
exFAT, and NTFS.
SYNC 3 is also able to organize the media
from your USB device by metadata tags.
Metadata tags, which are descriptive
software identifiers embedded in the
media files, provide information about the
file.
If your indexed media files contain no
information embedded in these metadata
tags, SYNC 3 may classify the empty
metadata tags as unknown.
SYNC 3 is capable of indexing up to
50,000 songs per USB device, for up to 10
devices.
CLIMATE
Touch the climate button on the
touchscreen to access your climate control
features.
Note:
You can switch temperature units
between Fahrenheit and Celsius. See
Settings (page 543).
Accessing the Climate Control
Menu Touch the button to access
additional controls for the front
climate system.
Directing the Airflow Touch the button to direct
airflow to the windshield air
vents and de-mister.
Touch the button to direct
airflow to the instrument panel
air vents.
Touch the button to direct
airflow to the footwell air vents. You can direct air through any combination
of these air vents.
Setting the Blower Motor Speed Touch up or down to increase or
decrease the volume of air that
circulates in your vehicle.
Setting the Temperature
Touch up or down on the left-hand
temperature control to set the left-hand
temperature.
Note: This control also adjusts the
right-hand side temperature when you
switch off dual zone mode.
Touch up or down on the right-hand
temperature control to set the right-hand
temperature.
Switching Auto Mode On and Off Touch the button to switch on
automatic operation, then set
the temperature.
The system adjusts the blower motor
speed, air distribution, air conditioning
operation, and outside or recirculated air
to reach and maintain the temperature you
have set.
Switching the Air Conditioning On
and Off A pop-up appears on the screen
to display the air conditioning
options.
MAX A/C:
Touch the button to activate
and maximize cooling. The driver and
passenger temperatures are set to LO,
recirculated air flows through the
instrument panel vents, air conditioning
automatically turns on and the fan
automatically adjusts to the highest speed.
531
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- SYNC™ 3
(If Equipped)E265038 E244097