1999 suburban, towed a trailer this past weekend. after disconnecting the trailer, turn signals not working. Everything else is, brake lights, hazards, etc...
I thought it might be the turn signal flasher relay, so changed it out... still not working. All fuses are good.
Anyone have any idea??

 

On my 98 the turn signals are on a separate fuse from the brake lights. I would check the fuse in the dash. There may also be another fuse or relay in the underhood fuse box

 

guess I missed the fuse when I was checking them.... that was what was wrong.

thanks... it made me go look again