Toyota recalls 1 million hybrid cars over technical problem

How do vibrations wear down wires?

By causing chafing which wears down the insulation and causes shorts which in turn generate heat from the high current and can result in fire or explosion.

"The electrical wiring... could short circuit and generate heat as it wears down due to vibrations during driving," the company said in a recall document submitted to the transport ministry.

How do vibrations wear down wires?

Certainly in Japan Toyota should recall the DRIVERS of all Prius models and have them re-trained and re-tested. Expect every Prius driver to do something stupid and you will almost never be disappointed.