Hi my 2007 Hummer H3 horn just stopped working. When I lock the vehicle or press the horn it doesn't work. I checked the fuse and it was fine. Any other suggestions?

 

horn relay 74, then, the horns.

you can change the program to kill the obnoxious horn beep on lock/unlock so you don't wake the neighbors.
I found out that except for emergencies, it is unlawful to beep your horn in Indiana.

on rare occasions I bump mine accidently so I know it works!

oh,posting all over the forum will not get more help,or better help.one place is usually fine.

 

I'd just check to make sure if the horn is getting a voltage/current at its connector with a DVM. Otherwise you can get a horn from the salvage yard or but a wolo.

Chris

 

neither one of mine beep when I lock or unlock mine, but the horns work fine. I have to test them at least once a week because of idiot drivers