Well, sounds like I have a similar story to some other folks on here. Just bought my '06 GTP coupe at the end of December. Had it in for a 'low coolant' message on the DIC when the car was cold, back in January. The dealership topped it off. Now it's March, and I have the same issue. After reading all the horror stories on here, I'm pretty convinced its the head gasket. Brought it in to the dealer this morning. I have about 200 miles left on the warranty (35,789 miles on the car), which is also good until April 9th. Just made it. Now my only fear is that they won't get it fixed right and if I have to bring it in again I will be out of warranty. I should hear back from them on Monday with what the issue is. It makes me sick thinking I traded in my pristine '04 civic on this car. If it really is the head gasket, then I don't think I will be buying a GM vehicle ever again. This totally sucks.