Help please
 

I really hate being this person, but it's kinda necessary right now. I don't post on forums and I don't know much about cars. I have a 2011 Hyundai Elantra limited. I took my car to the Hyundai dealership today to check on an airbag warning signal that wouldn't turn off. After they finished I left back to school. When I got out of school (night) I realized my turning signal lights on my mirrors are no longer working. Is there a way to turn them on/off that I don't know about? I'd appreciate it if someone told me.

Go back to the dealer. They probably had to disconnect a few wire connectors to fix the original problem and then missed one or two when putting everything back together.