What is green light symbol in dash on upper left side?

The green light symbol on the upper left side of a vehicle's dashboard typically indicates that a system is active or functioning properly. For example, it may signify that the vehicle's daytime running lights are on or that other systems, such as the engine start/stop feature, are engaged. It's a positive indicator, suggesting that everything is operating as intended. Always refer to your vehicle's owner manual for specific meanings related to your model.