please re-read
I didn't suggest that the key fob is being pressed for too long. I suggested a problem with the radio reciever or related keyless computer.
Please re-read to see what I mean.
Oh, and DX/LX/EX: There are no options to make an LX and EX after the fact. Moon roof, 4-wheel disc brakes, etc, are not available after the fact to make an LX into an EX.
I have an LX sedan and it's made as well as any Honda.