Low Coolant Light Warning

My Low Coolant light comes on only when I exceed 45 MPH and goes off when I drop below that speed. It seems very strange to me that this happens.

Does anyone know what is wrong?

Your help is greatly appreciated.

Thx,

Cory

Sorry, this car is a 99 GP SE with 3.1 L- Vin M

I'm going to assume you checked your coolant and its not low. In any case that sensor is finicky. My Low Coolant light has been on for 9 months and its not low. Its a bad sensor and I've been to lazy to do anything about it. If you want to check it out, its located on the left side of the radiator about 6 inches under the cap. It's square and if you drain your coolant down past where its plugged in you can pop it out and give it a cleening. I've heard that can get it back to normal status. Or just replace it.

If it is a bad sensor I can understand it. But why would it consistently come on only at higher speeds?