What does it mean when the blue water temperature light on the dashboard is on?

[SanAugust]

The reason for the blue water temperature light on the dashboard is: the engine temperature is low, and the solution is to start the car for three to five minutes. The blue or green water temperature indicator light is a normal low water temperature indicator, indicating that the engine has just started and is in the warm-up state. At this time, the vehicle should not be driven aggressively, otherwise the engine will suffer severe wear due to low water temperature. When the water temperature reaches the optimal working temperature of the engine, this light will go off. It is important to remind car owners that if the water temperature is too high, it must be checked and repaired as soon as possible. When the water temperature is too high, do not open the radiator immediately, as hot water may spray out and cause burns.