Gauge light 💡 is illuminated,there’s fail on check florid sensors or level of fluids is low . This mean a fluid that is cooling engine system is low or sensor to control temp is failed . In this condition is danger to run the engine . You need to first check level of the fluids ,such as oil , transmission fluid and coolant .Then you need to scan the car for any code possible link to that issue. If fluid level and color are OK ,then failed is in electrical or mechanical parts . The electrical failure can be in temp sensors or control sensors in engine compartment.mechanichal failure can be oil pump ,broken or leak gaskets ,radiator fan motor or broken hose .To have direct check run the scan for code related to failure section .