2008 Toyota Prius Owners Manual - Page 402

4-3. Do-it-yourself maintenance 12 volt battery n Location The 12 volt battery is located in the right-hand side of luggage compartment. n 12 volt battery exterior Make sure that the 12 volt battery terminals are not corroded and that there are no loose connections, cracks, or loose clamps. Terminals Hold-down clamp 4 Maintenance and care 375 PRIUS_U_(L/O_0802)