Traction control and stability lights keep going on and off.

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 vehicle. When the traction control and stability lights come on in your Tahoe, along with the flashing check engine light, it's a sign that the engine isn't running properly, affecting the vehicle's stability systems. The flashing check engine light indicates a severe engine misfire. I would avoid driving the vehicle until the issue is diagnosed to prevent further damage. 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!