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Discussion Starter · #1 ·
I used my Sport Key exclusively for over a year. Recently the battery warning has been showing up, so I switched to the main black key. When approaching the car, none of the buttons on the fob work, nor does keyless entry. Eventually, after a nerve-racking 30 or so seconds, the keyless entry works to unlock the car, and at that point the fob buttons will also work. The car will start every time with no issue. I'm not getting any low battery warning, and the key worked fine before I put it away and started using the sport key last year. Has anyone had this happen? Anyone change the fob battery and, if so, where did you get the battery and how easy was it? I'm thinking about just going to the dealer but would rather spare the 2 hours it will take if I can order a battery online and do it at home.
 
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