Diesel Exhaust Fluid (DEF) Fault Warning Messages
There are 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.
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 and each time the vehicle is started. The message will be accompanied by
a single chime and the Malfunction Indicator Light. We recommend you drive to your
nearest authorized dealer and have your vehicle serviced immediately. If not
corrected in 50 miles, vehicle will enter the “Engine Will not restart in XXXmi Service
DEF See dealer” warning stage and message.
Incorrect DEF Detected See Dealer
– This message will display if the DEF system has
detected the incorrect fluid has been introduced to the DEF tank. The message will
be accompanied by a single chime. We recommend you drive to your nearest
authorized dealer and have your vehicle serviced immediately. If not corrected in
50 miles, vehicle will enter the Engine Will not restart in XXX mi Service DEF See
dealer warning stage and message.
Engine Will Not Restart in XXX mi Service DEF See Dealer
– This message is first
displayed if the fault detected is not serviced after 50 miles of operation. It is also
displayed at 150 miles 125 miles and 100 miles. System service is required within
the displayed mileage. The message will be displayed in the DID during vehicle start
up with an updated distance mileage, and it will be accompanied by a single chime.
Starting at 100 miles, remaining range will be continuously displayed while operat-
ing the vehicle. Chimes will also accompany the 75, 50 and 25 mile remaining
distances. We recommend you drive to your nearest authorized dealer and have your
vehicle serviced immediately.
Engine Will Not Restart Service DEF System See Dealer
– This message will display if the
DEF system issue detected is not serviced during the allowed period. Your engine will
not restart unless your vehicle is serviced by your authorized dealer. This message will
be displayed when under 1 mile until the engine will not start and each time the
vehicle is started. The message will be continuously displayed and be accompanied
by a single chime. Your Malfunction Indicator Light will also be continuously
illumined. We highly recommend you drive to your nearest authorized dealer
immediately if the message appears while engine is running.
Engine Will Not Start Service DEF System See Dealer
– This message will display when
the fault detected is not serviced after the Engine will not restart Service DEF System
See Dealer message is displayed on the next subsequent restart. Your engine will not
start unless you vehicle is serviced by your authorized dealer. The message will be
accompanied by a single chime. Your Malfunction Indicator Light will be continuously
illuminated. If the message appears and you can not start the engine, we recommend
you have your vehicle towed to your nearest authorized dealer immediately.
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