Coolant buzzer going off and your Coolant is full? Look inside...

[Brent]

Originally Posted by BLKTOPTRVL

In my experience, I see this as a fuller cap/burp issue.

As stated above... buzzer stays on all the time when coolant is toped off. A burp issue means that sensor is doing it's job and the owner should fill up the filler neck above the sensor.

With the issue stated above, the buzzer comes on as soon as the car is powered on and does not go off. If it has air in the system, once the system is hot it will purge the air to the top and drop the coolant level below the sensor, thus kicking the buzzer on.