Toyota has largely discontinued producing new map updates for the 2010 model year as the vehicle ages. You may find "latest available" versions on sites like eBay or legacy automotive accessory sites, but brand-new official updates from Toyota dealers are rare.
Since the newest possible DVD update is now several years old, many owners prefer modern solutions for real-time accuracy. 2010 Prius How-To: Navigation System | Toyota 2010 toyota prius navigation dvd update
Updating the 2010 Prius navigation is more than just a maintenance task; it is a reminder of how quickly technology evolves. The DVD system was once a luxury pinnacle, a sign of a "high-tech" vehicle. Today, it serves as a bridge between the analog past and the connected future. While a new disc can provide a bit more accuracy for a few more years, the true spirit of the Prius—efficiency and forward-thinking—is perhaps best served by embracing the mobile technology that has surpassed it. Toyota has largely discontinued producing new map updates
Sources and further reading
Toyota officially discontinued map DVD updates for the 2010 Prius , with the final released version being the 2018-2019 "Version 18.1 U9A" disc 2010 Prius How-To: Navigation System | Toyota Updating
The map DVD is located behind the touchscreen display. Follow these steps to swap it: Access the Menu : Press the Info/Phone (or Setup) button on the bezel. Open the Map Screen : Select the icon on the touchscreen. Eject Disc
Before buying an update, verify your current DVD version: