If you see a hazard ahead on the highway, as a warning to vehicles behind you

If you see a hazard ahead on the highway, turn your signal lights on as a warning to vehicles behind you. It will help drivers behind you to notice that someone is having an emergency. Turning your signal lights to the direction where you can over take will let the drivers behind you that there is a stranded car.

To be honest i really don’t know but ask some one else they will tell u