Got this message or something of that trend on my dash lately. Is this the fluid in my radiator or from my window sprinklers. I expected the latter becouse of exessive use lately but if it's the first I worry why this happened. No lights are burning and it disapears when driving.

Didn't find the time to read the manual yet, so I tought I'd just ask if anyone knows what I'm talking about.

Engine coolant for sure, make sure it's between min and max when the engine is cool