What Does the Water Temperature Warning Light on the Dashboard Indicate?

[StConnor]

The illumination of the water temperature warning light on the dashboard indicates an issue with the engine cooling system or insufficient coolant. Here are the relevant details: 1. Causes and Solutions: When the water temperature warning light on the car dashboard lights up, it typically means there is a problem with the engine cooling system or a lack of coolant, which can lead to engine overheating, resulting in cylinder seizure or engine failure (engine boiling). In emergency situations, you can stop the car, turn off the engine, and let it cool down for a while, or add mineral water to the cooling system as a temporary measure. 2. Water Temperature Warning Light: The function of the water temperature warning light is to display the temperature of the coolant inside the vehicle's engine, usually in yellow. Some vehicle models without a water temperature gauge use the color of the indicator light to show the coolant temperature: blue indicates the coolant is too cold, off indicates normal temperature, and red indicates the coolant is too hot.