Diesel Particulate Filter
Warning Light
Your vehicle may have
two Diesel Particulate
Filter (DPF) Warning lights.
These lights will come on briefly when the ignition is
turned to ON. One of these lights will come on
green during DPF regeneration. If the other light comes
on yellow, perform a manual regeneration or drive
the vehicle for automatic regeneration. If the light
changes from yellow to red, the DPF requires an
immediate regeneration. If the DPF is not regenerated,
the service engine soon light will come on and engine
power will be reduced.
See Diesel Particulate Filter (Diesel Engine) on
page 2-46 and Reduced Engine Power Light on
page 3-41 for more information.
Air Filter Restriction Indicator
If your vehicle has this
feature, the gage is
located above the
switchbank in the center
of the instrument panel.
It monitors the engine
air filter.
As the filter gets dirty, the yellow indicator will begin to
rise. When it reaches the red/orange change area,
the filter should be replaced.
After replacing the filter, reset the gage by pressing in
the yellow reset button at the bottom of the gage.
If you have a Caterpillar
®
diesel engine, also see your
Caterpillar
®
Operation & Maintenance Manual.
3-45
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