After driving to a couple of places and everything working fine I get home, hit the lock button on my keyless remote and nothing happens. I try again and still nothing. The unlock button and the panic button work fine, but the unlock won't work. I checked the battery and it's good. I tried the spare remote that came with the car and I get the same results. Does anyone have an idea.

Again I can unlock and press panic but lock doens't do anything on both remotes.

Car Model: 2000 Civic LX