Rep Power: 0

Hi guys! Im new here, I have a Latin American Sedan Honda Civic 2011 1.8 EXS (made on Brasil). I bought it recently and I notice that the alarm is completely silently. I tried to disable the valley park mode but it wasn't on. The lights and central lock works perfectly at almost 100yds (100m).
I replace some fuse, but all work fine. Also tried diferent setting with the key, but nothing work. I'm trying to avoid the honda center because it's really expensive here (I mean reeeealy expensive) and I use all my money to bought it.
There is some trick I'm missing? Something to look inside the car?

Thanks