Operators Manual

Table Of Contents
Diesel Exhaust Fluid Level Warning Lamps
A four light bar segment indicates the Diesel Exhaust Fluid (DEF) level in 25%
increments. Low DEF levels will trigger a decrease in the engine's performance.
The use of improper DEF fluid will trigger a decrease in the engine's performance.
In an empty or an ignored state and the diesel fuel tank is filled without filling the
DEF tank, the vehicle's speed will be limited to 5 mph until DEF is detected in the
DEF tank.
Figure 34. Driver Card
DD Heavy Duty Platform Operators Manual
All information subject to change without notice. 109
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