One problem related to brake hoses, lines/piping, and fittings has been reported for the 2011 Toyota Prius. The most recently reported issues are listed below.
In January 2012, I purchased a new 2011 Prius iii because I commute roughly 90 miles per day between home and school. Thinking this was the optimal vehicle I didn't think twice when signing on the line. This was my first new vehicle, and to be honest I had heard nothing but great things about Toyota & thought I was going crazy when I started having issues with my brakes. Prior to owning this vehicle I own a Subaru impreza sport that we had traded due to poor maintenance from the dealership, who didn't know how to balance the awd system & put a hole in my brake line. Being the my prior car had brake issues I denied the fact that my brand new car could have them as well. The issue is that anytime you hit ice, pot holes, gravel road, wet roads, bumpy roads etc, you lose control of the brakes. It feels as if they slip/accelerate and leave you in a moment of panic because it's not always a situation you can avoid. My car has been to the shop three times over the issue with a complaint on my braking system, and apparently this is a very known problem from Toyota. It took my dealership 3 complaints before they consulted their Prius tech, and basically printed off a paper with every complaint I listed above with no solution. They told us to call the Toyota care number, which has been a problem in itself. When my father spoke to the Toyota customer service on Wednesday they said they had to allow them three days to illicit a response to the complaint. Keep I'm mind that the three days falls onto a Saturday, and they therefore won't owe us a response until Monday, quite frankly they won't have a solution to this issue, and they will continue to let their consumers drive around with brake issues that have put not only me but others as well into numerous dangerous driving situations.