The coolant level sensor in the reservoir is probably at fault.
Add coolant to the reservoir. If the low coolant light still stays on, replace the low coolant sensor.
if coolant is ok!! then check coolant sensor.
If coolant level is correct - could be a defective sensor
I've heard that it blinks when coolant is low and stays on when coolant is too hot.
why does the coolent light stay on in my 2000 mustang gt 4.8
There is a sensor either in the coolant recovery jug or the radiator side tank that is defective.
have you filled up your coolant if so its the computer chip unplung your battey cable for fifteen minutes
not really. check that oil isn't in your coolant or coolant in your oil. the 3.1L engines seem to have a reputation for bad intake manifold gaskets.
Check the coolant level and make sure that its full, and is not leaking down over time. If the system is full then the low coolant sensor is probably bad.
Check the engine coolant... Is it full? yes coolant level is full
find someone with a tech 2 diagnostic machine
You are leaking (internally or external) the coolant. With out knowing the code that has set, it is impossible to say the cause of the light.