Blink Away -
: A rapid "hyper-flash" is your car's way of telling you a bulb is dead. If there is no blinking at all, check the fuse or the bulb sockets for corrosion.
: If your turn signal lights up as a solid green arrow on your dash and refuses to blink away, you likely have a bad flasher relay. This small electronic box is responsible for breaking and closing the circuit to create the flash. When it fails and gets stuck closed, the light stays solid. blink away
If you are dealing with a car blinker that continuously flashes and won't turn off automatically, or conversely, a dashboard arrow that stays lit as a solid piece of light instead of blinking away, it is usually caused by a failure in a specific mechanical or electrical component. : A rapid "hyper-flash" is your car's way