Levels are probably not fine. Check the radiator not the overfow tank for proper level. The radiator should be full to the top.
You probably need to replace the heater core. Be sure to also check your coolant levels, as well as the condition of the coolant - if it's burned out, have the cooling system flushed and the coolant replaced.
Have you checked the coolant levels or the cooling fan?
You may need to add fluid to your cooling system. These lights are programed to alert you if the levels are low.
Check the coolant levels. Insure that the cooling fan turns on when its supposed to, and the thermostat is not stuck closed. Make sure that the water pump is operating correctly.
Bad temperature sensor unit? Cooling fan not working? Water pump not circulating coolant? Radiator plugged or restricted? System airbound? Thermostat not opening?
You may have a faulty coolant level sensor
Sounds like your engine thermostat for the cooling system isn't opening , if your coolant level and oil levels are fine , and your water pump is working
What are you asking; what the function of the warning system(s) are or what could be causing it/them to turn on? In general: Most cooling systems only have warning systems for excessive temperatures, i.e temeprature gauge and/or warning lights. Some may have a warning system for low coolant levels in the expansion (header) tank also. In rare cases, there are systems for cooling system pressure and glycol dilution levels. If any one of these systems are active, it indicates either a fault in the cooling system or prehaps in the sender unit and/or warning system itself, i.e. high temp warnings upon a cold start. Signs of cooling systems problems are a regular loss of coolant, high engine operating temps, ineffective cooling fans, pregnant hoses, a hot smelling motor when running, peeling paint on the rad itself etc If you are a little more specific prehaps I can help more. Thanks, CHarlie
check or change: hoses for blockage, thermostat operation or blocked radiator..
yes, or should i say its supposed to. If your cars cooling system uses a expansion tank you have a problem on your hands, coolant should be flowing through the expansion tank on a regular basis(when the thermostat opens or closes). if you have a overflow tank, coolant flows in or out as needed by the systems heating and cooling cycles. If the radiator is low top it off then fill the resivor to the minimum cold level(shown on side of tank). But if your coolant levels are low you should ask yourself where is it going? if you cant find a external leak (around waterpump,bottem of radiator or hoses), then you might have an internal leak.
Chances are it wont read the coolant levels meaning your car will go bang!
Well, it will no light up if you have the correct coolant levels.