operators_manual

Diesel Particulate Filter (DPF)
W
arning Light
This icon and related message will appear
when the DPF needs to be regenerated
and then also during the regeneration
cycle. This may also appear if the system
is attempting to automatically regenerate
while the vehicle is in Power T
ake Off
operation mode.
Engine aftertreatment system includes a
diesel particulate filter and DPF warning
light.
Emissions, High Exhaust System
Temperature
WARNING
If this light is on, do not park in an area
of
combustible vapors or materials.
You must keep combustibles at least 5
ft. (1.5 m) away from the exhaust (out-
let) stream as it exits the tail pipe while
the HEST light is illuminated. Always
park your vehicle outside. Failure to do
so could ignite an explosion or harm
bystanders which could result in seri-
ous injury.
WARNING
If this lamp is on, do not park in an
area
where people are close by. You
must keep combustibles at least 5 ft.
(1.5 m) away from the exhaust outlet
while the HEST lamp is illuminated.
Failure to do so could result in serious
injury.
WARNING
If this lamp is on, temperature of the
tailpipe,
exhaust pipes, the diesel par-
ticular filter (DPF)/selective catalytic
reduction
(SCR) device and surround-
ing components including enclosures
and steps becomes elevated during
engine operation or any regeneration
event and can cause serious burns to
the skin. Allow adequate cooling time
before approaching, working on or
near any part of the exhaust system or
surrounding components.
Illuminates when the exhaust gas
temperature and exhaust components
become extremely hot.
Emissions, Malfunction Indicator
Light
Illuminates when an engine emissions
failure has occurred. The vehicle can be
safely driven but should be serviced to
correct the problem. The situation should
not be considered an emergency
. In some
cases, the Malfunction Indicator Light will
activate in conjunction with the High
Exhaust Temperature, Diesel Particulate
Filter (DPF), and Diesel Exhaust Fluid
(DEF) Warning Lights.
CONTROLS - Guide to the Warning Symbols
88 Y53-6110-1A1 (01/21)
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