operators_manual

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
five (5) feet away from the exhaust
(outlet) stream (as it exits the tail pipe)
while the HEST lamp is illuminated. Al-
ways park your vehicle outside. Failure
to do so could ignite an explosion or
harm bystanders which could result in
serious injury.
WARNING
If this light is on, do not park in an area
where people are close by. You must
keep combustibles at least five (5) feet
away fromthe exhaust outlet while the
HEST lamp is illuminated. Failure to
do so could result inserious injury.
WARNING
If this light 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
Lamp
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 Lamp will
activate in conjunction with the High
Exhaust Temperature, Diesel Particulate
Filter (DPF) and Diesel Exhaust Fluid
(DEF) Warning Lights.
Engine, Check Engine
Illuminates when a non emissions related
problem exists, but the vehicle can still be
safely driven. Vehicle should be serviced to
correct the problem but the situation should
not be considered an emergency.
Engine, Engine Fan
Illuminates when the engine fan is active.
(Not available with optional Variable Speed
Fan Drive)
CONTROLS - Guide to the Warning Symbols
Y53-6047-2HEN (03/18) 81
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