2007 Toyota Prius Owners Manual - Page 141

Km/h or MPH button 3. Trip meter reset button-Resets the two trip meters to zero, and also change the meter display. To change the meter display, quickly push and release the button. The meter display changes in the order from the odometer to trip meter A to trip meter B, then back to the odometer each time you push. To reset the trip meter A to zero, display the meter A reading, then push and hold the button until the meter is set to zero. The same process can be applied for resetting the trip meter B. 24p115 You can switch the display between km/h and MPH by pressing the button. 124