What is the primary purpose of the Temperature Light in a vehicle?

The primary purpose of the Temperature Light in a vehicle is to warn of overheating coolant. When the engine is running, it generates heat, and the coolant is responsible for regulating that temperature to prevent the engine from overheating. If the coolant temperature rises beyond a safe threshold, the Temperature Light will illuminate to alert the driver. This warning serves as an important safety feature that can prevent severe engine damage caused by overheating. Recognizing and addressing this warning promptly can help maintain the engine's health and overall performance.