A "Warning Light" is a visual indicator used in various devices and vehicles to alert users of potential issues or malfunctions. These lights typically illuminate in different colors, such as red, yellow, or green, each signifying a specific level of urgency. For example, a red light often indicates a critical problem that requires immediate attention, while a yellow light may suggest a cautionary issue. In vehicles, warning lights are part of the dashboard display and can signal problems with the engine, brakes, or other essential systems. Understanding these indicators is crucial for maintaining safety and ensuring the proper functioning of the vehicle, as neglecting them can lead to more severe issues or accidents.