All of a sudden my signals don't work in the dash or outside. Same time my reverse lights stopped working. I checked the fuses and cleaned up the grounds. Still dead. Is there a relay behind the left side of the glove box that could be bad?

 

Is it possible you hit something doing damage to the harness??

drill any holes in the floor as of late ??

Unless you just had bad luck and the back up light switch and turn signal flasher failed

Do your emergency flashers work??

 

check your turn signal harness