Jeep grand cherokee 2014 User Manual page 150

DIESEL
NOTE:
• Driving conditions (altitude, vehicle speed, load, etc.) will effect the amount of DEF
that is used in your vehicle.
• Since DEF will begin to freeze at 12°F (-11°C), your vehicle is equipped with an
automatic DEF heating system. This allows the DEF injection system to operate
properly at temperatures below 12°F (-11°C). If your vehicle is not in operation for
an extended period of time with temperatures below 12°F (-11°C), the DEF in the
tank may freeze. If the tank is overfilled and freezes, it could be damaged.
Therefore, do not overfill the DEF tank. Extra care should be taken when filling
with portable containers to avoid overfilling. Note the level of the DEF gauge in
your EVIC. You may safely add a maximum of 2 gallons of DEF from portable
containers when your DEF gauge is reading ½ full.
Diesel Exhaust Fluid (DEF) Warning Messages
Your vehicle will begin displaying warning messages when the DEF level reaches a
driving range of approximately 500 miles (800 km).
If the following warning message sequence is ignored, your vehicle may not restart
unless DEF is added with in the displayed mileage shown in the EVIC message.
• Engine Will Not Restart in XXXX mi DEF Low Refill Soon – This message will display
when DEF driving range is less than 500 miles, DEF fluid top off is required with
in the displayed mileage. The message will be displayed in the EVIC during vehicle
start up with the current allowed mileage and accompanied by a single chime. The
remaining mileage can be pulled up anytime by way of the "Messages" list within
the EVIC.
• Engine Will Not Restart in XXXX mi Refill DEF – This message will display when DEF
driving range is less than 200 miles. It is also displayed at 150 miles and
100 miles. DEF fluid top off is required with in the displayed mileage. The
message will be displayed in the EVIC during vehicle start up with an updated
distance mileage, and it will be accompanied by a single chime. Stating at
100 miles, remaining range will be continuously displayed while operating the
vehicle. Chimes will also accompany the 75, 50 and 25 mile remaining distances.
The DEF Low telltale will be on continuously until DEF fluid is topped off.
• Engine Will Not Restart Refill DEF – This message will display when the DEF driving
range is less than 1 mile, DEF fluid top off is required or the engine will not restart.
The message will be displayed in the EVIC during vehicle start up, and it will be
accompanied by a single chime. The DEF Low telltale will be illuminated
continuously until DEF fluid tank is filled with a minimum of two gallons of DEF.
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.
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