Honda Pilot Owner's Manual page 88

Gauges
Instant Fuel Economy
This display shows the instant fuel
economy you are getting.
It shows the number of mpg (U.S.)
or l/100 km (Canada).
84
Average Fuel Economy
When either of the trip meters (trip
A or B) is displayed, your vehicle's
average fuel economy since you last
reset that trip meter can be shown
on the information display (mpg on
U.S. models and l/100 km on
Canadian models). This number is
updated once per 10 seconds. To see
the average fuel economy, press and
release the select/reset knob
repeatedly.
When you reset a trip meter, the
average fuel economy for that trip
meter also resets.
2011 Pilot
Range (Estimated Distance)
This display shows the estimated
distance you can travel on the fuel
remaining in the tank.
This distance is estimated from the
fuel economy you have achieved
over the last few miles (kilometers),
so it will vary with changes in speed,
traffic condition, etc.