Ram Trucks 2015 Chassis Cab Commercial - Diesel Supplement - Manual (Page 188)

• Exhaust Filter Full — Power Reduced See Dealer —
This message indicates the PCM has derated the
engine to limit the likelihood of permanent damage to
the after-treatment system. If this condition is not
corrected and a dealer service is not performed, exten-
sive exhaust after-treatment damage can occur. To
correct this condition it will be necessary to have your
vehicle serviced by your local authorized dealer.
CAUTION!
See your authorized dealer, as damage to the exhaust
system could occur soon with continued operation.
Diesel Exhaust Fluid (DEF) Warning Messages
Your vehicle will begin displaying warning messages
when the DEF level reaches a driving range of approxi-
mately 200 miles (322 km). If the following warning
message sequence is ignored, your vehicle may be lim-
ited to a maximum speed of 5 MPH (8 km/H) unless DEF
is added.
• DEF Low Refill Soon — This message will display
when the low level is reached, during vehicle start up,
and with increased frequency during vehicle opera-
tion. It will be accompanied by a single chime. Ap-
proximately 5 gallons (19 Liters) of DEF is required to
refill the tank when this message is initially displayed.
on pickup applications, and approximately 7 gallons
(28 Liters) are required on chassis-cab applications.
• Speed Limited to 5 MPH in XXX mi Refill DEF —
This message will continuously display if the “DEF
Low Refill Soon” message is ignored, and the fre-
quency of occurance of the chime will increase unless
up to 2 gallons (7.5 Liters) of DEF is added to the tank.
186 UNDERSTANDING YOUR INSTRUMENT PANEL