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Battery drain cause???

36K views 14 replies 12 participants last post by  sstenhjem  
I have a 2015 2.3 AWD. I have been stuck 4 mornings with a dead battery and the dealer still hasn't located the source. Initially the dealer couldn't replicate the issue so I got the car back with a new modem (??) which apparently was on recall. The battery ran dead again, but this time I could hear the power liftgate continually cycling. The dealer replaced the liftgate module which stopped the cycling, but the battery still ran dead. They then gave me a new factory battery, but several days later, dead again. The dealer is now saying that I have the keys too close (in the house) while the car is parked which is cycling the lock / unlock mechanism. I wouldn't expect 25 - 30 feet distance sufficient to be engaging the locks, nor do I notice any telltale light flashing. The dealer backs this up by claiming lock sensitivity was an issue on several 2015 models. Anyone else experienced this?
I have a 2015 2.0 MKC and have replaced the battery 5 times. I can't count the number of times I have had to jump it. Anyone else with these battery problems?