What does the exclamation mark with a half circle mean in Tesla?

[Martha]

An exclamation mark inside a circle appearing on the dashboard indicates a low coolant level in the vehicle. Below are the methods for adding coolant and its functions: Method for adding coolant: Open the driver's door, pull the hood release lever, lift the engine hood, slowly unscrew the cap of the coolant reservoir to release internal pressure, then fill the reservoir with coolant up to the MAX mark. Function of coolant: The primary function of coolant is to prevent freezing in cold winter conditions, which could crack the radiator or damage the engine block or cylinder head. In hot summer temperatures, it effectively prevents boiling and avoids overheating. Coolant plays a significant role in a vehicle's performance and lifespan.