Toyota is being skimpy on the details, but they did announce a parking brake recall for the 2016 and 2017 Prius.
“Toyota is recalling about 340,000 Prius cars worldwide, including about 92,000 located in the U.S. The 2016-2017 Toyota Prius sedans have parking brakes that could fail, leading to a higher chance of rollaway incidents.”
Dealers will add some clips to the top of the brake cable dust boots to hold things in place. Owners should start getting notices in November 2016.