I have a 2014 CTD, build date of 8/14. So I had a dead battery one morning about a month or so ago and the dealer put the battery on a GM approved machine to charge and test the battery...about a hour and a half later the dealer tells me the battery is bad...so they replace the battery under warranty and all is good again. So, I go on vacation, and my car sits in my driveway for 8 days and I come home to a dead battery. I put a battery charger on the battery over night and now the car starts up just like it always has...anyways...what's the deal with the battery going dead...has GM figured out what the problem is and fixed this issue? It's pretty clear that something is draining the battery with this car. I know I've read about the neg battery cable or something being replaced but is there a TBS that the dealer has on this issue ? I can't figure out why the dealer didn't check with GM before they replaced the battery the first time.