'08 Maintenace Screen--What is its function?

I'm sorry, I don't understand what you're referring to when you say "maintenance screen."

 

albny is talking about that maintenance screen on prius with navigation where you can enter stuff in it when oil changes are done or something, i think

 

Oh, I don't have nav - can't help you there. Good luck

 

Most of the dealers will not fill in any of this data. If you want your car to let you know when it is due for any of the items listed on the maintenance screen, it will be up to you to fill out the info. I did this on mine by just going through the manual and finding out what the recommended intervals were for oil, filters, etc. Once you do that a reminder will pop up during initial startup if any of the items are due. If you reset them, they will use the same interval you entered for the next reminder.

Pretty neat and kind of handy for some items that often get overlooked (cabin air filter, wipers, etc.)