Can I seal a leaking hatchback by myself? If so, how?

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. I'm sorry to hear you're having trouble with your Yaris. Yes, you can attempt a repair on a leaking hatchback. For loose weatherstripping, use automotive weatherstrip adhesive (like 3M Super Weatherstrip Adhesive) to secure it back in place. Just clean the surfaces first, apply a thin bead of adhesive, and press the weatherstripping firmly into the drip rail. For added leak protection, check the entire perimeter of the hatch and drip rail for gaps. If you find any, it may be caused by a deformed seal that needs to be replaced. If you need more advice, have any other 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!