Quote Originally Posted by EternalArianne View Post
I FINALLY found it! It?s behind the headlight knob, there is a module with the horn relay and seat belt buzzer.

And guess what? The Hazard flasher was MISSING! As soon as I popped one in there they worked! Not sure why the previous owner removed it, hopefully it wasn?t some wiring or fuse issue...
Glad you found it. GM called the whole assembly the 'Convenience Center'. I always found this amusing as it is so difficult to access in the Century dash.

I agree a previous owner probably robbed it to get the turn signals going. I've swapped them before for testing, but would always replace one that failed.