Make that four. I've also had this issue since late August or so. I'm actually out of the country and have been for the past month, so I haven't taken the car to the dealership. The message goes away after about five minutes of driving, so I really didn't bother to check the level out of pure laziness. I'm sure it's minor, but it just made me ask what is it with German platforms and cooling issues?
2017 QX30 Premium AWD - Exterior: Black Obsidian - Interior: Graphite
Technology Package - Moonroof - LED Package - Navigation Package