I need some help on how to configure the "Best Milage" to work on our new 2011 Prius. We followed the instructions in the manual but it is just displaying dashes.
What are you referring too? Are you talking the Nav unit or just driving the car? Or something else? If your talking about driving, then in the mileage forum, there is a sticky there about Max milage, you should look at that. If your talking about the nav unit, after you put in your route, pick the route that you want according to your preferences.
If you are talking about the Best MPG screen on the MID that is changed each time you reset the Trip A or Trip B data. The bar graph on the far right should be your current mpg for your current trip or tankful. The bar to the left is the previous and so on. Is this what you are talking about? You really need to be just a little more descriptive. If you have reset Trip A or B and you continue have dashes after driving a few miles, take it to the dealer and show it to them.