What does the warning light with a thermometer above waves indicate?

[DeOwen]

A warning light with a thermometer above waves indicates the engine coolant temperature warning, which shows the temperature of the coolant. Its specific functions are as follows: While driving: If the coolant temperature warning light stays on, it means the coolant temperature has exceeded the specified limit, and you should stop driving immediately. Coolant temperature warning light: Resembles a thermometer and is used to display the temperature of the engine coolant. A red light indicates the engine is overheating, while a blue or green light means it has not reached the operating temperature. Information about coolant: Coolant: Its full name is antifreeze coolant, meaning it has antifreeze properties. Antifreeze prevents the coolant from freezing and expanding during cold weather, which could damage the radiator and engine block. Composition: Coolant consists of water, antifreeze agents, and additives. Depending on the antifreeze agent used, it can be classified into types such as alcohol-based, glycerin-based, and ethylene glycol-based coolants.