Ram Trucks 2013 Chassis Cab - Diesel Supplement - Manual (Page 30)

NOTE: A minimum of 2 gallons (9.5 Liters) may be
required to restore normal vehicle operation. Although
the vehicle will start normally and can be placed in gear
after this message has been initially displayed, extreme
caution should be utilized since the vehicle will only be
capable of maneuvering at a maximum speed of 5 MPH
(8 km/H).
Diesel Exhaust Fluid (DEF) Fault Warning
Messages
There are four different messages which are displayed if
the vehicle detects that the DEF system has been filled
with a fluid other than DEF, has experienced component
failures, or when tampering has been detected. The
vehicle may be limited to a maximum speed of 5 MPH
(8 km/H) if the DEF system is not serviced within less
than 250 miles (402 km) of the fault being detected.
When the DEF system needs to be serviced the following
warnings will display:
• Service DEF System – See Dealer — This message
will display when the fault is initially detected, each
time the vehicle is started, and periodically during
driving. The message will be accompanied by a single
chime. We recommend you drive to your nearest
authorized dealer and have your vehicle serviced as
soon as possible.
• 5 MPH Max Speed in 200 mi Service DEF System See
Dealer — This message will display if the DEF system
has not been serviced after the “Service DEF System –
See Dealer” message is displayed. This message will
continuously display until the mileage counter reaches
zero, and will be accompanied by a periodic chime.
The message will continue to countdown until it
reaches zero unless the vehicle is serviced. We recom-
mend you drive to your nearest authorized dealer and
have your vehicle serviced immediately.
28 UNDERSTANDING YOUR INSTRUMENT PANEL