2023 FORD SUPER DUTY Owners Manual

Protected ComponentRatingItem
SYNC.15 A14
Center high-mounted stoplamp camera.5 A15
Not used.—16
Not used.—17
Radio transceiver module.10 A18Four-wheel drive switch.Enhanced central gateway.
Not used.—19
Inverter.5 A20
Upfitter switch.5 A21
Auxiliary camera.10 A22
Not used.—23
Moonroof.30 A24
Not used (spare).5 A25
Near field communicationmodule.5 A26
Trailer brake control switch.5 A27
Electrochromatic mirror.5 A28
Heating, ventilation and airconditioning.5 A29
Not used.—30
Not used.—31
Not used.—32
Brake on-off switch.10 A33
Steering column controlmodule.7.5 A34
Instrument cluster.
Rear heated seats.5 A35
Manual shift.7.5 A36
437
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMFuses

Protected ComponentRatingItem
Select shift switch.
Head up display.5 A37
Telematics control unit.7.5 A38
Not used.—39
Left-hand door switch.10 A40Telescopic exterior mirrorswitch.
Adjustable pedals.10 A41
Central security module.5 A42
Headlamps.5 A43Ignition switch.
Driver door module.30 A44
Wireless accessory chargermodule.7.5 A45
Driver front seat module.
Radio.20 A46
Not used.—47
Not used.—48
SYNC display screen.7.5 A49
Auxiliary smart data linkconnector.5 A50
Not used.—51
438
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMFuses

IDENTIFYING FUSE TYPES
Micro 2.A
Micro 3.B
Maxi.C
Mini.D
M Case.E
J Case.F
J Case Low Profile.G
Slotted M Case.H
FUSES – TROUBLESHOOTING
FUSES – FREQUENTLY ASKEDQUESTIONS
When do I need to check a fuse?
•If electrical components in the vehicleare not working.
When do I need to replace a fuse?
•If a fuse has blown.
How do I identify a blown fuse?
•You can identify a blown fuse by abroken wire within the fuse.
439
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMFuses E267379

MAINTENANCE PRECAUTIONS
Service your vehicle regularly to helpmaintain its roadworthiness and resalevalue. There is a large network ofauthorized dealers that are there to helpyou with their professional servicingexpertise. We believe that their speciallytrained technicians are best qualified toservice your vehicle properly and expertly.They are supported by a wide range ofhighly specialized tools developedspecifically for servicing your vehicle.
If your vehicle requires professional service,an authorized dealer can provide thenecessary parts and service. Check yourwarranty information to find out whichparts and services are covered.
Use only recommended fuels, lubricants,fluids and service parts conforming tospecifications. See Capacities andSpecifications (page 520).
•Do not work on a hot engine.
•Make sure that nothing gets caught inmoving parts.
•Do not work on a vehicle with theengine running in an enclosed space,unless you are sure you have enoughventilation.
•Keep all open flames and other burningmaterial, such as cigarettes, away fromthe battery and all fuel related parts.
•Set the parking brake, shift thetransmission to park (P) and block thewheels.
OPENING AND CLOSING THE
HOOD
1.Inside the vehicle, pull the hood releasehandle located under the left hand sideof the instrument panel.
2.Go to the front of your vehicle andlocate the secondary release leverunder the front of the hood near thecenter of your vehicle.
3.Raise the hood until the lift cylindershold it open.
4.To close, lower the hood and makesure that it is closed properly and fullylatched.
440
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMMaintenance E166491 E190266

UNDER HOOD OVERVIEW - 6.7L DIESEL
Battery. See Changing the 12V Battery (page 457).A
Under hood fuse box. See Accessing the Under Hood Fuse Box (page 430).B
Engine oil dipstick. See Engine Oil Dipstick Overview (page 444).C
Secondary fuel filter. See Changing the Fuel Filter (page 453).D
Engine oil filler cap. See Checking the Engine Oil Level (page 444).E
Engine cooling system coolant reservoir - primary high-temperature coolingsystem. See Checking the Coolant Level (page 450).F
Brake fluid reservoir. See Checking the Brake Fluid (page 249).G
Battery. See Changing the 12V Battery (page 457).H
Windshield washer fluid reservoir. See Adding Washer Fluid (page 115).I
Power steering fluid reservoir. See Checking the Hydraulic Power SteeringFluid (page 280).J
Secondary cooling system coolant reservoir. See Checking the Coolant Level(page 450).K
Air filter assembly. See Changing the Engine Air Filter (page 445).L
441
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMMaintenanceE350655

UNDER HOOD OVERVIEW - 6.8L, GASOLINE
Engine compartment fuse box. See Locating the Under Hood Fuse Box (page430).A
Battery. See Changing the 12V Battery (page 457).B
Engine oil dipstick. See Engine Oil Dipstick Overview (page 444).C
Engine oil filler cap. See Checking the Engine Oil Level (page 444).D
Brake fluid reservoir. See Checking the Brake Fluid (page 249).E
Windshield washer fluid reservoir. See Adding Washer Fluid (page 115).F
Engine coolant reservoir. See Checking the Coolant Level (page 450).G
Power steering fluid reservoir. See Checking the Hydraulic Power SteeringFluid (page 280).H
Air cleaner assembly. See Changing the Engine Air Filter (page 445).I
442
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMMaintenanceE398419

UNDER HOOD OVERVIEW - 7.3L, GASOLINE
Under hood fuse box. See Accessing the Under Hood Fuse Box (page 430).A
Battery. See Changing the 12V Battery (page 457).B
Engine oil dipstick. See Engine Oil Dipstick Overview (page 444).C
Engine oil filler cap. See Adding Engine Oil (page 444).D
Brake fluid reservoir. See Checking the Brake Fluid (page 249).E
Windshield washer fluid reservoir. See Adding Washer Fluid (page 115).F
Engine coolant reservoir. See Checking the Coolant Level (page 450).G
Power steering fluid reservoir. See Checking the Hydraulic Power SteeringFluid (page 280).H
Air cleaner assembly. See Changing the Engine Air Filter (page 445).I
443
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMMaintenanceE351057

ENGINE OIL
ENGINE OIL DIPSTICK OVERVIEW- DIESEL
Minimum.A
Nominal.B
Maximum.C
ENGINE OIL DIPSTICK OVERVIEW- GASOLINE
Minimum.A
Nominal.B
Maximum.C
CHECKING THE ENGINE OIL LEVEL
1.Make sure that your vehicle is on levelground.
2.Check the oil level before starting theengine, or switch the engine off afterwarm up and wait 15 minutes for theoil to drain into the oil pan.
Note:Checking the oil level too soon couldresult in an inaccurate reading.
3.Remove the dipstick and wipe it witha clean, lint-free cloth.
4.Reinstall the dipstick and make sure itis fully seated.
5.Remove the dipstick again to check theoil level.
Note: If the oil level is between themaximum and minimum marks, the oil levelis acceptable. Do not add oil.
6.If the oil level is at the minimum mark,immediately add oil.
7.Reinstall the dipstick. Make sure it isfully seated.
Note:The oil consumption of new enginesreaches its normal level after approximately3,000 mi (5,000 km).
Note:Increases in oil level can occur fromfrequent short trips that do not allow theengine to get to operating temperature, aswell as frequent idling or low speed drivingfor long periods of time.
Note:If oil levels are continuously notedabove the maximum mark, have your vehiclechecked as soon as possible.
ADDING ENGINE OIL
WARNING: Do not remove the fillercap when the engine is running.
444
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMMaintenanceE249448 E270482