Ford SUPER DUTY 2023 Owner's Manual page 235

Selective Catalytic Reduction System
The warning lamp illuminates and a
message appears in the information
SELECTIVE CATALYTIC REDUCTION SYSTEM – INFORMATION
MESSAGES
Message
DEF Level Range: XX mi/
km Refill Now
DEF Level Empty Speed
Limited to XX MPH / km/
h in XX mi/km
DEF Level Empty Speed
Limited to XX MPH/km/
h Upon Restart
DEF Level Low Speed
Limited to XX MPH/km/
h
DEF Level Empty Engine
Idled Soon
DEF Level Empty Engine
Idled See Manual
DEF Fault Speed Limited
to XX MPH/km/h in XX
mi/km
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOM
The distance you can travel before depleting the remaining
diesel exhaust fluid. Refill as soon as possible.
Your diesel exhaust fluid is nearing empty. Your vehicle's top
speed will become limited in the displayed distance. You must
replenish the diesel exhaust fluid to resume normal operation
of your vehicle. See Diesel Exhaust Fluid Capacity and
Specification (page 230).
Your remaining diesel exhaust fluid has depleted. Your speed
will be limited upon restart. You must replenish the diesel
exhaust fluid to resume normal operation of your vehicle. See
Diesel Exhaust Fluid Capacity and Specification (page
The diesel exhaust fluid is empty. You must replenish the
diesel exhaust fluid to resume normal operation of your
vehicle. See Diesel Exhaust Fluid Capacity and Specific-
The selective catalytic reduction system detects low exhaust
fluid. The engine will eventually enter into an idle only mode.
You must replenish the diesel exhaust fluid to resume normal
operation of your vehicle. See Diesel Exhaust Fluid Capa-
city and Specification (page 230).
The vehicle will enter into an idle only mode. You must
replenish the diesel exhaust fluid to resume normal operation
of your vehicle. See Diesel Exhaust Fluid Capacity and
Specification (page 230).
The selective catalytic reduction system detects a fault. The
vehicle's top speed will become limited in the displayed
distance and count down from this point. Have your vehicle
checked as soon as possible.
231
display if the system becomes
contaminated or inoperative.
Action
230).
ation (page 230).
(If Equipped)