Genuine Mazda CX-5 Remote Transmitter and key (key not cut and the remote not programmed to start your CX-5) lost,not working or need a extra one? We have the Genuine Mazda Factory Remote and key. The remote will need to be programmed and the key cut by a Mazda Delaer to work. Your Mazda CX-5 will need to be at a dealership to be programmed.