Ram Trucks 2012 Chassis Cab - Diesel Supplement - Manual (Page 30)

• Engine Power Reduced Up To 2 Min (Minutes)
During Warmup - This message will display during
start up when the ambient temperature is -25° F
(-32° C) and below.
Diesel Exhaust Fluid (DEF) Warning Messages –
Chassis Cab Only
Your vehicle will begin displaying warning messages
when the DEF level reaches a driving range of approxi-
mately 1,000 miles (1 609 km). If the following warning
message sequence is ignored, your vehicle will not start
unless DEF is added.
• Low DEF 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 6 gallons (23 Liters) of DEF is required to
refill the tank when this message is initially displayed.
• Refill DEF Engine Will Not Restart In XXX Miles –
This message will continuously display if the “Low
DEF 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.
The engine will not restart if the mileage counter
reaches zero.
• Refill DEF Engine Will Not Start – This message will
continuously display when the counter reaches zero,
and will be accompanied by a periodic chime. The
engine will not start after it has been turned off unless
up to 2.5 gallons (9.5 Liters) of DEF is added to the
tank.
NOTE: A minimum of up to 2.5 gallons (9.5 Liters) may
be required to restart the engine. Although the vehicle
will continue to operate while this warning message is
initially displayed, the engine will not restart the next
time the vehicle is shut off.
28 UNDERSTANDING YOUR INSTRUMENT PANEL