A flasher is the small electrical relay that creates the on-off pulse behind your turn signals and hazard lights, controlling how fast they blink. A failing flasher often causes signals that blink too fast or too slow, don't blink at all, stay on solid, or click audibly without any light activating — a classic sign it's time to replace it. Browse replacement turn signal and hazard flashers for cars, trucks, and SUVs to restore proper, reliable blinker operation.
