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

1 Answers
LondynDella
07/29/25 10:29pm

Windshield washer fluid warning light comes on due to a malfunction in the windshield washer fluid level sensor. Functions of windshield washer fluid: 1. Wetting, penetration, and solubilization: Surfactants typically possess wetting, penetration, and solubilization properties, enabling effective cleaning and dirt removal. The presence of alcohol and ethylene glycol significantly lowers the freezing point of the liquid, providing antifreeze protection and rapidly dissolving frost. 2. Ensuring clear visibility: Forms a monomolecular protective layer on the glass surface. This protective film prevents the formation of fog droplets, maintaining windshield clarity and clear visibility. 3. Anti-static properties: After cleaning windows with washer fluid, substances adsorbed on the glass surface eliminate surface charges, providing anti-static performance. The ethylene glycol content in the fluid has high viscosity, offering lubrication to reduce friction between wipers and glass, preventing scratches.

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