Our key fob kept reporting a low battery even a few days after changing the battery. It got pretty annoying and I was convinced I'd have to spend $400 to get a new one. I found this out after reading reviews where others just changed the case. Since I received these about a month ago and put the "guts" of my original keychain inside, I haven't had any issues at all. Definitely worth trying this first instead of going to the dealer!
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