One problem related to hydraulic power assist steering system has been reported for the 2004 Toyota Prius. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota Prius based on all problems reported for the 2004 Prius.
I have a 2004 Toyota Prius I purchased used last Feb (06). Starting the car does not immediately bring up the dash display. It remains blank, however I can shift into gear. The power steering is off as well. I restart and restart and eventually the dash will pop on. The car is drivable but all the warning lights are not. Not at once though. The red triangle with the ! in between is always present but sometimes it is joined by the check engine light or the abs failure light. The Toyota dealership is still trying to figure out what's going on.
| Steering problems | |
| Steering Column problems | |
| Power Steering Pump problems | |
| Hydraulic Power Assist Steering System problems | |
| Lose Power Steering problems |