Just bought a 2012 Challenger SXT a couple of months ago. It cost more than I have ever spent on a vehicle ever before in my life, therefore it is incredibly frustrating to be having a problem already after having owned it for only two months so far. It all started last weekend. Went out to start it on Sunday and the battery was dead. Jump started it and went to Interstate Batteries, thinking most likely I could simply buy a new battery and the issue would be resolved. They tested it and told me my battery is fine, actually better than fine. It seems the dealership had probably installed a new battery right before they sold it to me, so that was clearly not my problem. Battery was dead once again on Monday, so I called the dealership and made an appointment to have it checked out. Spent pretty much all day Wednesday waiting on technicians to run diagnostics on trying to figure out what was draining the battery. There is definitely something continuing to draw power from the battery after the engine is shut off, but couldn't figure out for sure the source of that draw. Eventually they came up with a theory that it was the radio, suggested replacing it. Removed the fuse to disable the sound system in order to test that theory, and today once again the battery was dead. Tried to jump start it and it wouldn't take a jump. During that time of trying to start it with jumper cables connected I briefly saw the message "key fob not detected" displayed in the area just below the speedometer. Lost my patience in that moment and took my wife's car to go run errands. Tried again a couple hours later and it started right up even without the jumper cables, which defies all logic and common sense considering that it had been totally dead earlier in the day. Went back to the dealership and talked to the technician who had looked at it on Wednesday. Gave him an update on what else had gone down since I was in a couple of days ago, and now he is no longer convinced that the radio is the problem. Suggested doing more extensive diagnostics when I bring it back in next week. Can anybody here offer me any advice on this very specific set of circumstances? I love everything about this car except for the fact that the past week I can never know for sure if it will or won't start.