The horn used to chirp when locking the doors, but now it doesn't. Does anyone know how to enable it again?

There is a lot of great info here!

Thanks!

thats actually a good question. I have a 95 blazer and mine does the samething with the exception that its more of an intermittant thing. sometimes it does, sometimes it doesn't. It's got a factory alarm on it, and as i understand it, when i lock the doors with the remote, the lights blinking and the horn cherping is what lets you know you activated the alarm. the same for when you unlock the doors too. lights blink, but the horn doesn't always cherp. On some cases when you lock or unlock the doors, nothing happens except for the doors lock and unlock.

Did you try pushing the lock button mabey more than twice I have to push mine three times to get it to chirp