Starts drives and then loses all power

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 Impala. It sounds like you may be dealing with an intermittent electrical issue. One possibility is that a sensor or module is overheating and shutting off power. Letting it sit for a while cools it down, allowing it to function again temporarily. I would have a trusted repair shop scan the car for any stored codes to work toward a diagnosis. 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!