Signal lights blink faster—a condition known as hyperflashing—because the turn signal circuit detects a drop in electrical current draw, which is most commonly caused by a burned-out bulb filament. Today, we sit down with Josh Lewis, Service Advisor at NewGen Chrysler Dodge Jeep Ram of Clinton, who brings six years of professional automotive service experience to explain why turn signals hyperflash, how modern vehicle electronics monitor lighting circuits, and how drivers can properly maintain their directional lights.