Toyota will conduct two voluntary safety recalls on 2004-2009 Prius models, one to replace the steering intermediate extension shaft and another to replace the electric water pump for the hybrid system.
Approximately 670,000 Prius vehicles are being recalled in the U.S. due to insufficient hardness treatment on some of the extension shafts. As a result, the splines that connect the extension shaft to the steering gear box may deform from use and can create increased internal clearance and the splines can wear out over time.
Those vehicles being recalled will have their extension shafts inspected to determine if they need to be replaced.
As for the other recall, 350,000 of the same Prius vehicles may need their electric water pump replaced. According to the Japanese automaker, there is a possibility that the electric motor installed in the water pump can stop functioning. In rare occasions, the electric power supply circuit fuse can open, causing the hybrid system to stop while the vehicle is driven.
If needed to be replaced, Toyota dealerships will install a new electric pump for the hybrid system for free.
Neither recall has resulted in crashes or injuries and owners of the affected vehicles will receive letters starting next month.