The turn signal lights on a vehicle are mounted on the front and back of the vehicle on both the left and right sides, and are used to indicate the intent to make a turn to other drivers.

Turn signal lights need to be replaced when a fault affects their operation. This includes when the lights continue to blink even when the steering wheel returns to the center. Another sign that this part may need to be replaced happens when turn signal lights don’t continue flashing unless the turn signal lever is held down or when the left or right signals stop working.