One problem related to power steering light on has been reported for the 2003 Toyota Prius. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Prius based on all problems reported for the 2003 Prius.
It's mostly when I'm turning right the power steering warning light will come and there will be no power steering. I have see a lot of complaints with the same problem. Sometimes as I was driving in the city or just as I'm starting to drive.