Hi Marianne,

I know you know this but I will try to help. The computer display that is right over your steering column shows different things depending on how many times you press one of the two square buttons on the dash to the left of the steering column. It will show you the temperature; average MPG bar, a list of warning settings and some other things. One of the settings shows your average MPG and average miles per hour since the last time you reset it. To reset it, bring up the average MPG and average MPH readout by pressing the (left with a bump?) button until you see it, then press and hold the (right) button until it resets. Press the left button until you are back to the setting you like. My wife likes the temperature.

I hope this helps.