Hey guys. When I started my car up the other day (10AE) the coolant buzzer went off. I immediately turned the engine off, popped the hood and checked the coolant level. The level was fine and I've never had any problems with leaks. I started the car up again, and the buzzer went off. I let it run for a few minutes and the buzzer eventually stopped after a minute or so. It did the same thing again today. Is it a bad ground to the sensor or is the sensor itself going bad? Thanks!

 

Yea check the grounds, and then check your sensor on the top of the radiator. Could have gotten a lost air bubble on it. Unlikely, but possible.

 

I would top the coolant off anyways.