Ford SUPER DUTY 2024 Owner's Manual page 232

Selective Catalytic Reduction System - Diesel
Message
DEF Fault Speed Limited
to XX MPH/km/h in XX
mi/km
DEF Fault Speed Limited
to XX MPH/km/h Upon
Restart
DEF Fault Speed Limited
to XX MPH/km/h
DEF Fault Engine Idled
Soon
2024 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202307, DOM
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.
The selective catalytic reduction system detects a fault. The
vehicle's top speed will become limited upon restarting. Have
your vehicle checked as soon as possible.
The selective catalytic reduction system detects a fault. The
vehicle's top speed is limited. Have your vehicle checked as
The selective catalytic reduction system detects a fault. The
engine will eventually enter into an idle only mode. Have your
vehicle checked as soon as possible.
228
Action
soon as possible.