The Problem: The company said that there is, "a possibility that the parking brake could become inoperative. If this occurs and the driver exits the vehicle with the transmission in a gear other than 'Park' while the ignition is on, the vehicle could roll away, increasing the risk of a crash."
Injuries/Deaths: None officially tied to this issue, but Toyota is investigating reports of, "crashes, injuries and deaths," according to USAToday.
The Fix: In the US, Toyota dealers are being told to "add clips on the top of the brake cable dust boots to prevent the cable from becoming inoperative." This will be done at no cost to Prius owners. If you own one of the affected Prius hybrids, you should get a letter from Toyota in November. You can see if your Prius is affected by going to Toyota's recall website and entering your Vehicle Identification Number (VIN).