Check low coolant sensor. Aslo, I have found that the sensor requires the "slipperiness" of a proper coolant/water mix...too much water and the sensor will stick. ==New answer headline== Also make sure you are using the right coolant. On my 97, the light will only go off if i use Dex-cool. anything else and it will stay on.
If it is the low coolant light, it may mean your coolant is low. If it is not low, it may be the low coolant light sensor malfunctioning.
lOW COOLANT OR BAD SENSOR
Low coolant?Bad sensor?
Low coolant? Bad sensor?
i have found that with my 97 sable the low coolant light comes on when my oil is low. same as your car can run hot when your extremely low or out of oil
Assuming your coolant level isn't actually low, it's most likely a bad sensor
You are low on coolant or the low coolant sensor/wiring/connection is bad.
Bad coolant sensor or faulty wiring to the sensor.
I'm having to guess it's the low coolant light? Possible coolant switch in the overflow bottle is dirty or defective., Is it low on coolant? Possible wiring issue to sensor.
it shouldn't
Check your coolant sensor for built up sludge, or the sensor may need replacement.
Add coolant to the reservoir. If the low coolant light still stays on, replace the low coolant sensor.