Your hybrid battery has failed. You are not the first one faced with this issue, and you won't be the last. Time to start weighing options to fix it. Do you need your car to be reliable? Can you have it periodically not working for days (weeks?) at a time? Do you have a $3,000 to spend? Do you have $2,500 to spend? Do you have $2,000 to spend? How long do you want to keep this car? Is the rest of the car in good condition? Here are some other aspects to get you started thinking. Single module replacement - DIY - Independent shop - Random craiglist dude Full pack replacement - Junkyard - Rebuilt - rebuild yourself - Random craiglist dude - Reputable rebuilder- New Installation - Dealer - Independent - Random Craigslist dude - DIY So much fun. Feel free if you want to talk more about options.