i have a 2003 alero and a couple of months ago my horn would just go off in the middle of the night so i pulled the relay well need to get the car inspected put relay back in and i have constant horn 12v to horn checked relay come to find out its contacts in the steering wheel how the hell can i fix this any help would be great thanks joe

Welcome to AF.

It sounds like you may have a short in the clock spring assembly or a bad horn button. To replace the clock spring the steering wheel will need to be pulled with a special tool but I would troubleshoot it more thoroughly first. The horn signal then goes to the multifunction switch from the clock spring.

I have heard of the material shrinking on the steering wheel at night from cooling off and setting off a horn for hours, then going back to normal, I think the initial cooling/shrinkage makes the horn go off for a while until the material has some more stretching after cooling. Is the horn sensitive to begin with? Was there some other wiring modifications done with sterio, alarm, anti theft device etc....? Maybe something is shorting through the horn.

I have heard of the material shrinking on the steering wheel at night from cooling off and setting off a horn for hours, then going back to normal, I think the initial cooling/shrinkage makes the horn go off for a while until the material has some more stretching after cooling. Is the horn sensitive to begin with? Was there some other wiring modifications done with sterio, alarm, anti theft device etc....? Maybe something is shorting through the horn.
thats what was happening at night it would just go off then i would beat on the steering wheel till it stopped it wasnt real sensative though

Welcome to AF.

It sounds like you may have a short in the clock spring assembly or a bad horn button. To replace the clock spring the steering wheel will need to be pulled with a special tool but I would troubleshoot it more thoroughly first. The horn signal then goes to the multifunction switch from the clock spring.
screw that i was gonna try to do it myself but no way ill send it to my mechanic thank you for the post