Owner's Manual
Page 161
... this display may change . To reset the fuel used as the ignition is on, even if another display is being shown on the number of mpg (L/100 km) recorded since the last reset of fuel used since the last time this menu item was last reset, not including time the ignition... the fuel level is low. Average Economy Press the trip/fuel button until FUEL RANGE displays. This display shows the approximate average miles per gallon (mpg) or liters per 100 kilometers (L/100 km). The display will show the amount of miles (mi) or kilometers (km) that has passed since the timer...
... this display may change . To reset the fuel used as the ignition is on, even if another display is being shown on the number of mpg (L/100 km) recorded since the last reset of fuel used since the last time this menu item was last reset, not including time the ignition... the fuel level is low. Average Economy Press the trip/fuel button until FUEL RANGE displays. This display shows the approximate average miles per gallon (mpg) or liters per 100 kilometers (L/100 km). The display will show the amount of miles (mi) or kilometers (km) that has passed since the timer...