Hey guys,
I'm experiencing something very similar. My battery was dying from one day to another. I thought was the battery itself so I replaced it. So, two days later lr3 dead again..then I replaced the alternator and the problem seemed to be fixed. Now, the behavior is back, I go there in the morning to try to turn it on and it is simply dead. I mean, I can pretty much everything in the dashboard panel but there's no crank and it keeps throwing the Parking brake switch (with a transmission fault error) when I open the door. Now, the alternator is new so is the battery. Any other thing I could be checking on?