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Discussion Starter · #1 ·
I have a 2014 Mazda 3 - recently I have been having issues with the key fob where it will not consistently work to open the door or start the car. Sometimes I can press the unlock button, but I cant press the button on the car door. The same thing happened to the spare key.

I changed the battery and everything starting working again for about a week. Now I am having the same problem where about 50% of the time I can't open or start the car (I have to do it manually). Or I can open the door with the key button (not the door button) but still cant use the push start (I have to hold the key on the push button).

Any thoughts on what is happening?
 

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If a spare fob is not working properly too I would assume the problem in a car radio transmitter or with RKI (remote keyless ignition). I suggest to schedule appointment at your dealership before you will get stuck somewhere.

I had the similar problem but it was happening because of dying battery, a spare fob worked just fine despite it has not been used for 2 years.
 
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