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226 DRIVING AND OPERATING
Once the vehicle is refueled, or the malfunction is corrected, the engine
will start the next time the vehicle is turned on to perform a self test, and DIC messages will not be displayed. Once the engine starts successfully, normal operation will continue with either electric propulsion or with the engine running. The engine will stop
running after the self test is
completed, and based on the current mode of operation.
Maintenance Modes
Engine Maintenance Mode (EMM)
EMM runs the engine to keep it in good working condition after
approximately six weeks of no or very limited engine operation. EMM will
force the engine to run, even if there is a charge to power the vehicle.
When EMM is needed, the EMM Request screen appears on the
infotainment display at vehicle start.
If Yes is selected, EMM will begin. The engine will not start until after a short delay once shifted into D (Drive). The
engine will run for a set amount of time without turning off. During
EMM, a DIC message displays to show the EMM percentage complete.
If No is selected, the EMM Request
screen will appear when the vehicle is next started. The EMM request can be delayed for up to one day.
If the EMM request was delayed for
one day, EMM will automatically start the engine at the next vehicle start.
The engine will not start until after a
short delay once shifted into D (Drive).
An EMM Notification screen will
appear in the infotainment display.
If the vehicle is shut off during EMM,
it will restart the next time the vehicle is driven.
A message displays to indicate that EMM is active.
If EMM is required and the fuel level is low, EMM may eventually empty
the fuel tank if fuel is not added. This
DRIVING AND OPERATING 227
will result in reduced, or no power. An adequate fuel level must be
maintained in the vehicle to keep it operational.
Fuel Maintenance Mode (FMM)
FMM tracks average fuel age. Old fuel can cause engine problems. If low
engine usage causes average fuel age
to exceed approximately one year,
FMM will run the engine to use up
the old fuel. The engine will run until enough fresh fuel is added to bring
the average fuel age into an
acceptable range. Allowing more old fuel to be used up by FMM and
adding a larger amount of fresh fuel will maximize the length of time
before another fuel maintenance mode is needed. During FMM the engine may turn on and off.
When FMM is needed, the FMM Request screen appears on the
infotainment display at vehicle start.
If Yes is selected, FMM will begin. The engine will not start until after a short delay once shifted into D (Drive). FMM will automatically continue at each
vehicle start until fresh fuel is added.
If No is selected, the FMM Request
screen will appear when the vehicle is next started. The FMM request can be delayed for only one day.
If the FMM request was delayed for one day, FMM will start at the next vehicle start and display the FMM Notification screen on the
infotainment display. The engine will
not start until after a short delay once shifted into D (Drive).
If FMM is required and the fuel level is low, FMM may eventually empty
the fuel tank if fuel is not added. This will result in reduced, or no power. An adequate fuel level must be
maintained in the vehicle to keep it operational. After FMM has run it is recommended to fill the fuel tank.
