Two problems related to wiring have been reported for the 2013 Toyota Prius. The most recently reported issues are listed below.
I am having problems with rodents getting into my car. I fear that they are chewing on electrical wiring and there is possible distraction to the driver. When I was driving (car was moving) a mouse crawled up on my shoulder. These problems appear to be a problem with this model Toyota and could cause a distraction to the driver and a driving issue with wiring.
The contact owns a 2013 Toyota Prius. While driving at an unknown speed, the contact noticed a rat inside the vehicle that was eating the wires. The wires were coated with oil, which attracted the rat. The vehicle was not taken to a dealer or mechanic. The manufacturer was not notified. The failure mileage was unknown.