2021 FORD F-150 maintenance reset

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Page 33 of 796

FORD F-150 2021  Owners Manual WARNING: Do not connect
wireless plug-in devices to the data link
connector. Unauthorized third parties
could gain access to vehicle data and
impair the performance of safety related
systems. Only all

Page 515 of 796

FORD F-150 2021  Owners Manual 3. Add engine oil that meets our
specifications.  See Capacities and
Specifications (page 574).
4. Reinstall the engine oil filler cap.  Turn it clockwise until you feel a strong
resistance.
Note:  Do

Page 517 of 796

FORD F-150 2021  Owners Manual Water alone, without engine coolant, can
cause engine damage from corrosion,
overheating or freezing.
Do not use the following as a coolant
substitute, as they can cause engine
damage from overheating

Page 520 of 796

FORD F-150 2021  Owners Manual After operating your vehicle during heavy
snowfall or extreme rain, do the following:
•
Snow: At the earliest opportunity, open
the hood and clear any snow and ice
from the air filter housing inlet

Page 522 of 796

FORD F-150 2021  Owners Manual ENGINE AIR FILTER - INFORMATION MESSAGES - DIESEL
Action
Message
Indicates the engine air filter is performing as expected.
Filter OK
Indicates that there is a higher than expected restriction
across

Page 524 of 796

FORD F-150 2021  Owners Manual For longer, trouble-free operation, keep the
top of the battery clean and dry and the
battery cables tightly fastened to the
battery terminals. If any corrosion is
present on the battery or terminals,

Page 544 of 796

FORD F-150 2021  Owners Manual PREPARING YOUR VEHICLE
FOR STORAGE
If you plan on storing your vehicle for 30
days or more, the following maintenance
recommendations ensures your vehicle
stays in good operating condition.
Under vari

Page 566 of 796

FORD F-150 2021  Owners Manual Note:
If the system does not enter
reset mode, try again starting at
Step 2. If after repeated attempts
to enter the reset mode, the horn
does not sound, the system
indicator does not flash and no
mes
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