RAM Truck 2013, Owner'S Manual, Page: 29 / 183

•
The vehicle will only be capable of a maximum speed
of 5 MPH upon the first of the following conditions to
occur:
•
If the vehicle is shutoff and restarted.
•
If the vehicle is idled for an extended period of time,
approximately one hour or greater.
•
If the system detects that the level of fuel in the tank
has increased.
•
Add a minimum of 2 gallons (9.5 Liters) of DEF to the
tank in order to avoid vehicle operation at a maximum
speed of 5 MPH (8 km/H).
•
5 MPH Max Speed Refill DEF – The vehicle will only
be capable of a maximum speed of 5 MPH (8 km/H)
when this message is displayed. Add up to 2.5 gallons
(9.5 Liters) of DEF to the tank to restore normal vehicle
operation.
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.
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UNDERSTANDING YOUR INSTRUMENT PANEL 27