What to Do When the Coolant Indicator Light Comes On?

[Genevieve]

The solutions for when the coolant indicator light comes on are: 1. Refill the coolant; 2. Pull over and wait for assistance, then proceed to a professional repair shop for inspection and repair. Coolant, also known as antifreeze coolant, is composed of water, antifreeze agents, and additives. Based on the antifreeze agent composition, it can be categorized into alcohol-based, glycerol-based, and ethylene glycol-based. The functions of coolant are: 1. To prevent the coolant from freezing and expanding in cold weather, which could crack the radiator and damage the engine cylinder block; 2. To prevent corrosion of metal components and aging of rubber parts; 3. To reduce the formation of scale, avoiding blockage of circulation pipes and affecting the cooling system's heat dissipation function; 4. To prevent the engine from overheating, ensuring it operates at the proper working temperature; 5. To provide lubrication for the water pump thermostat and other components.