I had to have the third light replaced because it was cracked. Auto repair said defect

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. Thank you for bringing this to our attention! It sounds like you've encountered a known issue with your Prius. If the third brake light was cracking due to water accumulation, it might be a design flaw that Toyota is aware of. If your repair shop mentioned that this has happened in several cars, it's possible that Toyota might issue a service bulletin or offer a warranty extension for this issue in the future. If you need advice, have any questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!