Why does the windshield washer fluid warning light come on when there is no shortage of fluid?

[Elsie]

Lack of windshield washer fluid warning light is on because the windshield washer fluid warning sensor is damaged. Extended information: The role of windshield washer fluid: 1. Wetting, penetrating, and solubilizing: Surfactants usually have functions such as wetting, penetrating, and solubilizing, thereby playing a role in cleaning and removing dirt; the presence of alcohol and ethylene glycol can significantly reduce the freezing point of the liquid, thus playing an anti-freezing role and quickly dissolving frost. 2. Ensure clear vision: A single-molecule protective layer will form on the glass surface. This protective film can prevent the formation of fog droplets, ensuring that the windshield is clear and transparent, with a clear view. 3. Anti-static: After cleaning with windshield washer fluid, the substances adsorbed on the glass surface can eliminate the charge on the glass surface, providing anti-static performance. The windshield washer fluid contains ethylene glycol, which has a high viscosity and can play a lubricating role, reducing friction between the wiper and the glass and preventing scratches.