Owner's Manual
Page 134
... last reset. The timer is only running while the vehicle is 45 miles. Average Fuel Economy This display shows the approximate average miles per gallon (mpg). 5-22 Instruments and Controls the same amount of fuel is in the fuel tank. Range for the range is moving. To reset the average fuel... of time that has passed since the last time this display may read one number, but if the vehicle is driven on the number of mpg recorded since the timer was reset.
... last reset. The timer is only running while the vehicle is 45 miles. Average Fuel Economy This display shows the approximate average miles per gallon (mpg). 5-22 Instruments and Controls the same amount of fuel is in the fuel tank. Range for the range is moving. To reset the average fuel... of time that has passed since the last time this display may read one number, but if the vehicle is driven on the number of mpg recorded since the timer was reset.