Infiniti FX Key Fob Woes: Lock/Unlock Issues & Warning Light

Had the same issue with my 2011 Infiniti G37 last summer. Started with inconsistent locking/unlocking, and the dashboard lit up with the key warning. First thought it was something serious, but turned out to be just a dying key fob battery. Took it to my local dealer since I had some concerns about aftermarket key programming. They checked the system, replaced the battery, and did a quick reprogramming of the fob. Nothing major, just basic maintenance. The whole thing took about 30 minutes. If your symptoms are identical (intermittent remote function, warning light), it's likely just the battery. The key fob batteries usually last 3-4 years before needing replacement. It's not a serious issue at all, just annoying when it happens. Quick tip: Keep your spare key handy while getting this fixed, just in case the main one completely dies.

Hey, thanks for sharing your experience! That's really helpful. My symptoms sound exactly like what you described. I'm a bit relieved it might just be the battery issue. Can you remember roughly how much you paid at the dealer for the whole thing? Also, has everything been working smoothly since then, or have you had any other key-related problems pop up?

Hey there! Happy to give you an update on my experience. I took my G37 to the dealer and the total came to 37.50€ honestly not bad for the peace of mind. Since getting it fixed last summer, everything's been working perfectly smooth no more key warning lights or locking issues at all. It really was just the battery in the key fob that was dying, exactly like I suspected. The repair was super quick and straightforward. Once they put in the new battery and did a quick reprogramming, it was good as new. Haven't had a single key-related problem since then. Just goes to show sometimes the simplest explanation is the right one! If your FX is showing the same symptoms, I'd bet you're dealing with the same issue. It's one of those annoying but totally fixable things that comes with owning these cars. Trust me, it's worth getting it sorted at the dealer they know these systems inside out, and for what it costs, you can't go wrong. Let me know how it goes if you get it fixed!

Thanks so much for all the details! I actually went ahead and took your advice got it checked at the local Infiniti dealer yesterday. You were spot on it was just the battery! Funny thing is, I was so worried it might be something major, but ended up paying only about 40€ for the whole thing. The service was quick too I sat in their waiting area for maybe 20 minutes, had a decent coffee, and was out of there before I could finish reading a magazine. The mechanic showed me the old battery and explained that these things typically need changing every few years. He even gave me a heads up about where to get replacements if it happens again. Did a quick test in the parking lot, and everything's working perfectly now no more warning lights or locking issues. Really glad I asked here instead of stressing about it more. Sometimes the simple fix is all you need! Thanks again for pointing me in the right direction. Much better experience than my last mechanic visit!