I have a problem with my coolant light always coming on when it is cold start but goes aways later when car is warm up. It will always have the buzzer going on constanely also. So far i check all my coolant and eveything thing is so far good on my behalf. Do you guy have any suggestion? Thank you.

 

there are procedures for testing the coolant level sensor on the radiator in the FSM

 

Well it will only happen on super cold start. It not like overheating or anything.

 

take off the 2 prongs from the sensor, sand em clean, dielectric grese em, plug em back in. also may want to look into a new tstat soon