Originally Posted by hunterlee

Did that ever work? Currently have a 2006 monte carlo ss 3.5 6cyl (I honestly don't know, but I'm almost sure that's right). Currently have been having a lot of issues, but this has been a recurring one for me throughout the years of owning the Monte. It really only seems to be in the winter time, but this notification comes up, the temperature gauge goes down to 0, and the heat only works if I give it gas. Sometimes it will stop mid-drive and the temperature gauge goes back to normal, heat works fine, etc. And sometimes the whole drive is fine. Just want to know if this fixed your issue, even though this was a long time ago.