Hi there! I have a 2013 Toyota Prius c with 91,000 miles. Bought it used in 2017 with a clean title. It has been accident free under my ownership and I perform regular DIY maintenance. So I was accelerating from a right turn when suddenly, a noticeable thump was felt with accompanying noise from the engine bay. At the same time, the dash lights and buzzer came on with the dreaded “Check Hybrid System Stop Vehicle In A Safe Place Immediately” message. I parked and attempted a restart, but the same errors persisted. I pop the hood, no noticeable smells nor any leaks were found. I got my car towed home and performed a limited diagnosis to the best of my non-mechanic ability. The following are the results: I set the vehicle to ON and there is the usual electric initializing noise. I then attempted to put the hybrid system to READY but the same error message pops up. I waited for the engine to start but it did not. I checked the fuses related to the hybrid system but did not find any of them blown. I checked for any high voltage battery cooling fan blockages/dust build up but did not find any. I checked the gas cap and it was snugly fitted on. I checked the 12V accessory battery with a multi-meter and it reads fine (the accessory battery was replaced in 2020). I currently have this disconnected overnight in hopes of a memory reset. I will update when it is reconnected. I do not have any readers to help with the diagnosis (I should probably invest in one). Any tips for further diagnosis would be appreciated. If nothing else, I plan to have it towed to a dealership service department for diagnosis. Once I know what's wrong, I will update.