2018 FORD F-450 fuses

Cruise Control
Principle of Operation
...............................243
Using Cruise Control ..................................
243
Using Adaptive Cruise Control ..............
244
Driving Aids
Lane Keeping System ...............................
250
Blind Spot Information System .............
252
Cross Traffic Alert ........................................
257
Steering ..........................................................
259
Collision Warning System ........................
261
Load Carrying
Load Limit .....................................................
264
Bed Ramps ...................................................
268
Towing
Towing a Trailer ............................................
272
Trailer Reversing Aids ................................
274
Trailer Sway Control ...................................
281
Recommended Towing Weights ..........
282
Essential Towing Checks .........................
286
Towing the Vehicle on Four Wheels .....
295
Driving Hints
Breaking-In ...................................................
298
Economical Driving ....................................
298
Driving Through Water .............................
299
Floor Mats .....................................................
299
Snowplowing ...............................................
300
Roadside Emergencies
Roadside Assistance .................................
303
Hazard Flashers ..........................................
304
Fuel Shutoff .................................................
304
Jump Starting the Vehicle .......................
305
Post-Crash Alert System .........................
307
Transporting the Vehicle ..........................
307
Towing Points ..............................................
308Customer Assistance
Getting the Services You Need
..............
310
In California (U.S. Only) ..............................
311
The Better Business Bureau (BBB) Auto Line Program (U.S. Only) ......................
312
Utilizing the Mediation/Arbitration Program (Canada Only) .......................
313
Getting Assistance Outside the U.S. and Canada ........................................................
313
Ordering Additional Owner's Literature ........................................................................\
.
314
Reporting Safety Defects (U.S. Only) ........................................................................\
.
315
Reporting Safety Defects (Canada Only) ........................................................................\
.
315
Fuses
Fuse Specification Chart ...........................
317
Changing a Fuse .........................................
326
Maintenance
General Information ..................................
328
Opening and Closing the Hood .............
328
Under Hood Overview - 6.2L ..................
329
Under Hood Overview - 6.7L Diesel .....
330
Under Hood Overview - 6.8L ...................
331
Engine Oil Dipstick - 6.2L/6.8L ..............
333
Engine Oil Dipstick - 6.7L Diesel ............
333
Engine Oil Check - 6.2L/6.8L ..................
333
Engine Oil Check - 6.7L Diesel ...............
334
Changing the Engine Oil and Oil Filter ........................................................................\
335
Changing the Crankcase Vent Filter Element ......................................................
336
Oil Change Indicator Reset ......................
337
Engine Coolant Check - 6.2L/6.8L .......
338
Engine Coolant Check - 6.7L Diesel ......
342
Automatic Transmission Fluid Check ........................................................................\
346
Transfer Case Fluid Check ......................
349
Brake Fluid Check .......................................
349
4
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201709, Second Printing Table of Contents

PRINCIPLE OF OPERATION
WARNINGS
Airbags do not inflate slowly or
gently, and the risk of injury from a
deploying airbag is the greatest close
to the trim covering the airbag module. All occupants of your vehicle,
including the driver, should always
properly wear their safety belts, even
when an airbag supplemental restraint
system is provided. Failure to properly wear
your safety belt could seriously increase
the risk of injury or death. Always transport children 12 years
old and under in the back seat and
always properly use appropriate
child restraints. Failure to follow this could
seriously increase the risk of injury or death. Never place your arm over the airbag
module as a deploying airbag can
result in serious arm fractures or
other injuries. Airbags can kill or injure a child in a
child seat. Never place a rear-facing
child seat in front of an active airbag.
If you must use a forward-facing child seat
in the front seat, move the seat upon which
the child seat is installed all the way back. Do not attempt to service, repair, or
modify the airbag supplemental
restraint systems or its fuses as you
could be seriously injured or killed. Contact
your authorized dealer as soon as possible. Several airbag system components
get hot after inflation. To avoid risk
of injury, do not touch them after
inflation. If the airbag has deployed, the airbag
will not function again and must be
replaced immediately. If the airbag
is not replaced, the unrepaired area will
increase the risk of injury in a crash. The airbags are a supplemental restraint
system and are designed to work with the
safety belts to help protect the driver and
right front passenger from certain upper
body injuries. Airbags do not inflate slowly;
there is a risk of injury from a deploying
airbag.
Note:
You will hear a loud bang and see a
cloud of harmless powdery residue if an
airbag deploys. This is normal.
The airbags inflate and deflate rapidly
upon activation. After airbag deployment,
it is normal to notice a smoke-like, powdery
residue or smell the burnt propellant. This
may consist of cornstarch, talcum powder
(to lubricate the bag) or sodium
compounds (for example, baking soda)
that result from the combustion process
that inflates the airbag. Small amounts of
sodium hydroxide may be present which
may irritate the skin and eyes, but none of
the residue is toxic.
While the system is designed to help
reduce serious injuries, contact with a
deploying airbag may also cause abrasions
or swelling. Temporary hearing loss is also
a possibility as a result of the noise
associated with a deploying airbag.
Because airbags must inflate rapidly and
with considerable force, there is the risk of
death or serious injuries such as fractures,
facial and eye injuries or internal injuries,
particularly to occupants who are not
properly restrained or are otherwise out of
position at the time of airbag deployment.
Thus, it is extremely important that
occupants be properly restrained as far
away from the airbag module as possible
while maintaining vehicle control.
Routine maintenance of the airbags is not
required.
46
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201709, Second Printing Supplementary Restraints System

After all occupants have adjusted their
seats and put on seatbelts, it is very
important that they continue to sit
properly. Properly seated occupants sit
upright, lean against the seat back, and
center themselves on the seat cushion,
with their feet comfortably extended on
the floor. Sitting improperly can increase
the chance of injury in a crash event. For
example, if an occupant slouches, lies
down, turns sideways, sits forward, leans
forward or sideways, or puts one or both
feet up, the chance of injury during a crash
greatly increases.
Children and Airbags
WARNING
Airbags can kill or injure a child in a
child restraint. Never place a
rear-facing child restraint in front of
an active airbag. If you must use a
forward-facing child restraint in the front
seat, move the seat upon which the child
seat is installed all the way back. Children must always be properly
restrained. Accident statistics suggest that
children are safer when properly restrained
in the rear seating positions than in the
front seating position. Failure to follow
these instructions may increase the risk of
injury in a crash. If two adults and a child occupy a Regular
Cab, properly restrain the child in the
center front unless doing so would interfere
with driving your vehicle. This provides lap
and shoulder belt protection for all
occupants, and airbag protection for the
adults. A child or infant properly restrained
in the center front seat should not incur
risk of serious injury from the airbags.
SIDE AIRBAGS
WARNINGS
Do not place objects or mount
equipment on or near the airbag
cover, on the side of the seatbacks
(of the front seats), or in front seat areas
that may come into contact with a
deploying airbag. Failure to follow these
instructions may increase the risk of
personal injury in the event of a crash. Do not use accessory seat covers.
The use of accessory seat covers
may prevent the deployment of the
side airbags and increase the risk of injury
in an accident. Do not lean your head on the door.
The side airbag could injure you as it
deploys from the side of the
seatback. Do not attempt to service, repair, or
modify the airbag, its fuses or the
seat cover on a seat containing an
airbag as you could be seriously injured or
killed. Contact your authorized dealer as
soon as possible. If the side airbag has deployed, the
airbag will not function again. The
side airbag system (including the
seat) must be inspected and serviced by
an authorized dealer. If the airbag is not
replaced, the unrepaired area will increase
the risk of injury in a crash. 52
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201709, Second Printing Supplementary Restraints SystemE142846

TOWING A TRAILER
WARNINGS
Do not exceed the GVWR or
the GAWR specified on the
certification label. Towing trailers beyond the
maximum recommended
gross trailer weight exceeds the
limit of your vehicle and could
result in engine damage,
transmission damage, structural
damage, loss of vehicle control,
vehicle rollover and personal
injury. Do not exceed the lowest
rating capacity for your
vehicle or trailer hitch. Overloading
your vehicle or trailer hitch can
impair your vehicle stability and
handling. Failure to follow this
instruction could result in the loss
of control of your vehicle, personal
injury or death. Do not cut, drill, weld or
modify the trailer hitch.
Modifying the trailer hitch could
reduce the hitch rating. Note:
To prevent your trailer from
accumulating distance, and the
trailer information status appearing
when you restart your vehicle after
disconnecting your trailer, you must
deactivate your trailer. Using the
information display, go to the
Towing menu and then the Select
Trailer option. Select the No active
trailer option. See Information
Displays (page 113).
Your vehicle may have electrical
items, such as fuses or relays,
related to towing. See
Fuses
(page 317).
Your vehicle may have ability to
modify trailer towing features.
See
General Information (page
113).
Your vehicle's load capacity
designation is by weight, not by
volume, so you cannot necessarily
use all available space when
loading a vehicle or trailer.
Towing a trailer places an extra
load on your vehicle's engine,
transmission, axle, brakes, tires
and suspension. Inspect these
components periodically during,
and after, any towing operation.
272
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201709, Second Printing Towing

•
The tire air pressures recommended
for general driving are on the vehicle ’s
Safety Certification Label. The
maximum cold inflation pressure for
the tire and associated load rating is
on the tire sidewall. Tire air pressure
may require re-adjustment within these
pressure limits to accommodate the
additional weight of the snowplow
installation.
• Federal and some local regulations
require additional exterior lamps for
snowplow-equipped vehicles. Consult
your authorized dealer for additional
information.
Operating the Vehicle with the
Snowplow Attached
Note: Do not use your vehicle for snow
removal until you have driven at least
500 mi (800 km).
Ford recommends vehicle speed does not
exceed
45 mph (72 km/h) when
snowplowing.
The attached snowplow blade restricts
airflow to the radiator, and may cause the
engine to run at a higher temperature:
Attention to engine temperature is
especially important when outside
temperatures are above freezing. Angle
the blade to maximize airflow to the
radiator and monitor engine temperature
to determine whether a left or right angle
provides the best performance.
Follow the severe duty schedule in your
Scheduled Maintenance information for
engine oil and transmission fluid change
intervals. Snowplowing with your Airbag
Equipped Vehicle WARNINGS
Do not attempt to service, repair, or
modify the airbag supplemental
restraint system (SRS) or its fuses.
Contact an authorized dealer. Additional equipment for example
snowplow equipment may affect the
performance of the airbag sensors
increasing the risk of injury. Please refer to
the Body Builders Layout Book for
instructions about the appropriate
installation of additional equipment. All occupants of the vehicle,
including the driver, should always
properly wear their seatbelt, even
when provided with an airbag
supplemental restraint system (SRS). Your vehicle is equipped with a driver and
passenger airbag supplemental restraint
system. The supplemental restraint system
will activate in certain frontal and offset
frontal collisions when the vehicle sustains
sufficient frontal deceleration.
Careless or high speed driving while
plowing snow that results in sufficient
vehicle decelerations can deploy the
airbags. Such driving also increases the risk
of accidents.
Never remove or defeat the tripping
mechanisms designed into the snow
removal equipment by its manufacturer.
Doing so may cause damage to the vehicle
and the snow removal equipment as well
as possible airbag deployment.
Engine temperature while plowing
When driving with a plow, your engine may
run at a higher temperature than normal
because the attached snowplow blade will
restrict airflow to the radiator.
301
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201709, Second Printing Driving Hints

If your vehicle has a push button start
system:
1. Press START/STOP to switch off your
vehicle.
2. Press the brake pedal and START/STOP
to switch on your
vehicle.
3. Remove your foot from the brake pedal
and press
START/STOP to switch off
your vehicle.
4. You can attempt to start the vehicle by pressing the brake pedal and
START/STOP
, or press START/STOP
without pressing the brake pedal.
5. If the vehicle does not start, repeat steps 1 through 4.
JUMP STARTING THE VEHICLE WARNINGS
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. 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. Use only adequately sized cables
with insulated clamps. Preparing Your Vehicle
Do not attempt to push-start your
automatic transmission vehicle.
Note:
Attempting to push-start a vehicle
with an automatic transmission may cause
transmission damage.
Note: Use only a 12-volt supply to start your
vehicle.
Note: Do not disconnect the battery of the
disabled vehicle as this could damage the
vehicle electrical system.
Park the booster vehicle close to the hood
of the disabled vehicle, making sure the
two vehicles do not touch.
Connecting the Jumper Cables WARNINGS
Do not attach the cables to fuel lines,
engine rocker covers, the intake
manifold or electrical components
as grounding points. Stay clear of moving
parts. To avoid reverse polarity
connections, make sure that you correctly
identify the positive (+) and negative (-)
terminals on both the disabled and booster
vehicles before connecting the cables. Do not attach the end of the positive
cable to the studs or L-shaped eyelet
located above the positive (+)
terminal of your vehicle ’s battery. High
current may flow through and cause
damage to the fuses. Do not connect the end of the
second cable to the negative (-)
terminal of the battery to be jumped.
A spark may cause an explosion of the
gases that surround the battery. Note:
In the illustration, the bottom vehicle
represents the booster vehicle.
305
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201709, Second Printing Roadside Emergencies

FUSE SPECIFICATION CHART
Power Distribution Box
WARNINGS
Always disconnect the battery before
servicing high current fuses.
To reduce risk of electrical shock,
always replace the cover to the
power distribution box before
reconnecting the battery or refilling fluid
reservoirs. The power distribution box is in the engine
compartment. It has high-current fuses
that protect your vehicle's main electrical
systems from overloads.
If the battery has been disconnected and
reconnected, some features will need to
be reset. See Changing the 12V Battery
(page 353).
317
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201709, Second Printing FusesE252492

Protected Components
Fuse Rating
Fuse or Relay
Number
Powertrain control module.
20A 1
1
Emissions - malfunction indicator lamp.
20A 1
2
Cooling fan.
20A 1
3
A/C compressor.
Engine brake.
Noise suppression cap.
20A 1
4
Mass air flow sensor.
Emissions.
Glow plugs.
Urea.
Compressed natural gas fuel control
module.
15A 1
5
Fuel sensor.
Not used.
—
6
Not used.
—
7
Not used.
—
8
Not used.
—
9
Heated exterior mirrors.
15A 1
10
Compressed natural gas relay.
—
11
Heated rear window.
40A 2
12
Not used.
—
13
Powertrain control module relay.
—
14
Horn.
20A 1
15
A/C clutch relay power.
10A 1
16
Rear heated window and heated mirrors
relay.
—
17
Trailer park lamp relay.
—
18
Not used.
—
19
318
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201709, Second Printing Fuses