When I was having this problem, they replaced my battery. It didn't solve the problem. Last time they returned the car they said I had one faulty key fob and the other needed the new battery again. It worked well for a couple of days but it's back to being glitchy. Yes, I think they either have a bad batch or poor design.How could a key fob need a new battery so soon? I have never had to change a battery in less than 3 years and our most used car a Cadillac XT5 is five years old and still has the original key fob batteries….