check coolant level in overflow reservoir
The circular motion of heating in fluids is caused by convection currents. When a fluid is heated from below, it expands, becomes less dense, and rises. This rising fluid displaces cooler, denser fluid which then descends, creating a circular motion.
The circular motion is called convection current.
Molecules
The circular movement you are describing is called convection. This process occurs when heated fluid rises due to decreased density and is replaced by cooler fluid, creating a continuous circular flow.
it is a warning light
Convection currents are the vertical circular movements of fluids that transfer due to changes in density.
It means that your windshield wiper fluid is at low levels. Simply add more fluid and warning indicator will go away.
Add brake fluid
The windshield washer fluid is low or out.
Master cylinder, located on firewall, driver's side, mounted to the brake booster. A very large circular object about 10" in diameter.
Turbine
washer fluid low level warning light. fill up your washer fluid.