What is the green light on my dashboard that looks like an upside down lightbulb

It's likely an indicator that an exterior bulb has failed or is intermittently failing. When exactly is a lightbulb considered to be "up side down" anyway? .. (Lol) Check the owners manual if you got it... The link below should help: https://www.intoautos.com/image?q=car+dashboard+symbols+explained&s_chn=1&s_pt=source2&s_gl=US&v_t=aolsem