The other day out of nowhere, the horn on my 89 GL just started going off. Anyone else have this issue? I had an 82 GL sedan that did this once too.

 

 

 

when I was a kid, we had a Chevy Impala that did that. It was the relay.

was driving my parents GM that had same happen. Turned out that due to it's design, a rivet style of construction that anchored horn to the brackt came llose, horn swiveled on bracket causing earth switched electrical contact male spade, to touch the metal bracket, earthing it   I think most horns are earth switched, so even the wire rubbing on the body somewhere can trigger them

Ok, that's unfortunate. I'll try to check for bad connections and or relay. Thank you for the replies.

 

On my 1992 Loyale my son used to honk the horn with his fist :).  No surprise that after some time the horn started honking on its own.  I removed the top from the steering wheel, bent down those tabs and it is fine since that.

 

Worth to try.

 

Good luck,

Sam