Warning Lights And Messages; Yellow Indicator Lights; Low Diesel Exhaust Fluid (Def) Indicator Light; Wait To Start Light/Water In Fuel Indicator Light - Dodge RAM 1500 2018 Diesel Supplement

• Engine Will Not Restart Service DEF System See
Dealer — This message will display if DEF system issue
detected is not serviced during the allowed period. Your
engine will not restart unless your vehicle is serviced by
your authorized dealer. This message will be displayed
when under 1 mile until engine will not start and each
time the vehicle is started, and will be continuously
displayed. The message will be accompanied by a single
chime. Your Malfunction Indicator Light will be continu-
ously illumined. We highly recommend you drive to
your nearest authorized dealer if the message appears
while engine is running.
• Engine Will Not Start Service DEF System See Dealer
— This message will display when the fault detected is
not serviced after the Engine will not restart Service DEF
System See Dealer message is displayed on the next
subsequent restart. Your engine will not start unless
your vehicle is serviced by your authorized dealer. The
message will be accompanied by a single chime. Your
Malfunction Indicator Light will be continuously illumi-
nated. If the message appears and you can not start the
engine, we recommend you have your vehicle towed to
your nearest authorized dealer immediately.
GETTING TO KNOW YOUR INSTRUMENT PANEL 29

WARNING LIGHTS AND MESSAGES

Yellow Indicator Lights

— Low Diesel Exhaust Fluid (DEF) Indicator Light

— If Equipped
The Low Diesel Exhaust Fluid (DEF) Indicator will illumi-
nate if the vehicle is low on Diesel Exhaust Fluid (DEF).
Refer to "Starting And Operating" for further information.
— Wait To Start Light — If Equipped
The "Wait To Start" telltale will illuminate for approximately
two seconds when the ignition is turned to the RUN position.
It's duration may be longer based on colder operating
conditions. Vehicle will not initiate start until telltale is no
longer displayed. Refer to "Starting The Engine" in "Starting
And Operating" for further information.
NOTE: The "Wait To Start" telltale may not illuminate if
the intake manifold temperature is warm enough.
— Water In Fuel Indicator Light — If Equipped
The "Water In Fuel Indicator Light" will illuminate when
there is water detected in the fuel filters. If this light remains
on, DO NOT start the vehicle before you drain the water
from the fuel filters to prevent engine damage. Refer to the
"Draining Fuel/Water Separator Filter" section in "Dealer
Service" in "Servicing And Maintenance" for further infor-
mation.
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