For as long as I've had my 2016 Model S (6 months), the key fob's buttons have never worked. When I have it in my pocket and approach the car, the car opens fine. Because of this, it really hasn't been too big of an issue. I did take apart the key to see if there was some corrosion, but it looked very clean to me. The car does have MCU 2, so I'm wondering if it's something to do with that retrofit that perhaps messed up the key fob. Does anyone have any ideas short of just buying a new one?
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Whether you buy another one or not, Tesla service will need to initialize or reinitialize all key fobs at once for them to work. I'd take the ones you have into service to have then calibrated. If they are bad, Tesla can get you new ones. All fobs you have must be initalized at the same time for them to work.
vcor
Tech Specialist
I had a 2016 S with MCU2 retrofit, and the FOBs worked fine. Issues could be FOB to MCU2 calibration or a faulty MCU2. MCU2 should still be in warranty.
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