The 2010 Toyota Prius comes with a built-in navigation system that uses DVD maps for navigation. However, as with any GPS system, the maps can become outdated over time, leading to incorrect routing or missing roads. To address this issue, Toyota offers navigation DVD updates for the 2010 Prius.
Turn on the ignition and press the "Info/Phone" button on the bezel surrounding the screen. 2010 toyota prius navigation dvd update