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).
•
In-corrected DEF Detected —
contact your authorized dealer as soon as possible.
•
NOX Emissions too high check DEF —
contact your authorized dealer as soon as
possible.
•
DEF Dosing malfunctioning —
contact your authorized dealer as soon as possible.
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 five 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
200 miles (322 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 150 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 recommend you drive to your nearest authorized dealer and have your
vehicle serviced immediately.
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