Mazda CX-3 Manual page 183

NOTE
The fuel economy data can be reset by doing the following operation:
Press the reset switch from the menu screen.
When the function which synchronizes the fuel economy monitor and the trip meter is
on, reset trip A of the trip meter.
Delete the average fuel economy information displayed in the trip computer.
After resetting the fuel economy data, "-- -" is displayed while the average fuel economy
is calculated.
Ending Screen Display
If the ending display on the fuel economy monitor is on when the ignition is switched from
ON to OFF, the information regarding the fuel economy is displayed.
Fuel Economy Monitor
When Driving
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