2008 Toyota Prius Owners Manual - Page 493

6-1. Specifications Electrical system 12 volt battery Open voltage at 68°F (20°C): 12.6 ⎯ 12.8V Fully charged 12.2 ⎯ 12.4V Half charged 11.5 ⎯ 11.9V Discharged (Voltage is checked 20 minutes after the engine and all lights are turned off.) 3.5A max. Charging rates Transmission Fluid capacity Drain and refill Fluid type 3.8 qt. (3.6 L, 3.2 lmp.qt.) Toyota Genuine ATF WS NOTICE n Transmission fluid type Using transmission fluid other than "Toyota Genuine ATF WS" may cause deterioration in shift quality, locking up of your transmission accompanied by vibration, and ultimately damage the transmission of your vehicle. 468 PRIUS_U_(L/O_0802)