3RDGENFRANK

I'm having the same issue. My 2022 Yukon XL Denali has had battery drain issues since I bought it last year. I have to carry a jump pack to start my truck. I've had to jump it dozens of times. Not very convenient when I'm trying to get somewhere or when it is raining or snowing. The battery has been replaced. It currently tests good. I have had it to the dealer for diagnostics and have had to pay out of pocket for updates to the BCM and the infotainment since it is no longer under warranty. It seemed to be resolved for two months but is back again. I've replaced the lift gate module and have tried the fuse out but the problem persists. If I leave it at the airport for more than a few days, it is low. Once the battery is low, it seems to get worse until I fully charge the battery with a charger. Very frustrating. Wish I could help, but am at loss. It is stressful always wondering if it will start or leave my family stranded.