I had a similar issue on my last vehicle. Had the battery replaced and alternator and still dead battery after a couple of days. It was my first push button start vehicle and I was leaving the remote in the car which was keeping the computer on. I then moved it to a key ring right in front of the truck and still had the issue. I had to move it about 5’ from the car or when hanging the key up lock and unlock from the door no longer worked and problem was fixed. Not saying that is your issue but something to try if all else fails. Good luck