GM Repair Problems? Ask GM Repair Expert Now.
Hi and thank you for your question. I'm sorry to hear you are having this issue. I'll do my best to help. It sounds like the battery may not be the problem. Do you have an Amp meter to check for parasitic draw? It sounds like something in your vehicle is being powered up when it shouldn't or not powering down when it should. Make sure nothing is left on or powered p through a power outlet. With the vehicle completely off and doors closed, do you notice anything remaining on? Any abnormal sounds?