User Manual - Page 130

For 2020 Ford Super Duty®.

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ActionMessage
A problem exists with the selective catalytic reduction system
causing your vehicle into an idle-only mode. If the exhaust
fluid is empty, you must replenish the diesel exhaust fluid to
resume normal operation of your vehicle. See Selective
Catalytic Reductant System (page 191).
DEF Level Empty Engine
Idled See Manual
The selective catalytic reduction system detects a fault. The
system displays your vehicles top speed limit and distance
before limitation. Have the system checked by an authorized
dealer.
DEF Fault Speed Limited
to XX MPH/km/h in XX
mi/km
The selective catalytic reduction system detects a fault. Upon
restart, your vehicle speed is now limited. Have the system
checked by an authorized dealer.
DEF Fault Speed Limited
to XX MPH/km/h Upon
Restart
The selective catalytic reduction system detects a fault. The
system displays your vehicles top speed limit. Have the
system checked by an authorized dealer.
DEF Fault Speed Limited
to XX MPH/km/h
You must have your vehicle serviced by an authorized dealer.
Ignoring the warning message could lead to reduced drivability
and customer expense, including damage to the diesel
particulate filter. Your new vehicle warranty could not cover
this damage.
Exhaust Filter Over Limit
Service Now
The water separator has reached a predetermined capacity
and needs draining. See Draining the Fuel Filter Water
Trap (page 350).
Water in Fuel Drain Filter
A low fuel pressure condition has occurred due to cold, low
fuel level or fuel filters need to be changed. See Fuel Quality
(page 181).
Fuel Pressure Low
Doors and Locks
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The door(s) listed is not completely closed.X Door Ajar
127
Super Duty (TFE), enUSA, Edition date: 201909, Third-Printing-
Information Displays
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