it may be the airbag module. on the 2003, the module is located under the passenger seat. im not sure where it is on other years
here is a diagram of the horn placement
You have a loose wire, blown fuse or a faulty horn.
you can remove the horn relay in the fuse box.
Make sure the bulbs are still good.
Hi, I had this problem on a 2000 Alero. Had to disconnect the battery to shut it up. G.M. replaced the horn relay to aleviate the problem. Duke
check your fuses
This may or may not help. I had to change the horn on a 2003 Alero, I found it behind the passenger side headlight. The headlight easily poped out after lifting two clips. The horn was in two pieces, a high tone horn and a low tone horn and was very easily replaced. Good Luck!
pulls out like a fuse
Start by checking the fuse.
The horn is located below the passenger head light.
The horn is located behind the passenger headlight. You have to remove the inner plastic part of the fender to get to it .
Sounds like the horn has a bad connection. I would replace the horn switch in the steering wheel.