Reasons Why You Should Use The Turn Signal Turn signals. Do you know how to use the turn signal? Do you know it’s function. Turn signals, it is the lights on the outside of your car that blinks either on the left or the right side and tells others where the heck you are going. It does not turn on with your mind, but with the up and down motion of a lever located on the right side of the steering wheel. Now why do I bring up the use of the turn signal? Well, I am currently in the island of Puerto Rico, where the majority of the people…