Toyota Prius Owners Manual
Adding washer fluid
If any washer does not work, the washertank may be empty. Add washerfluid.
You may use plain water as washer fluid.However, in cold areas where temperaturesrange below the freezing point, usewasher fluid containing antifreeze. Thisproduct is available at your Toyota dealerand most auto parts stores. Follow themanufacturer’s directions for how much tomix with water.
Do not use engine antifreeze or anyother substitute because it may damageyour vehicle’s paint.