Hmm, I've had my car for ~3 winters now. First two did not show this, but this winter i'm seeing this problem as well. I do have the procede tune, but always figured it had something to do with the tune. I'm glad to hear non-tune cars are also seeing this.
BTW, I also have a plethora of other issues with my car. See my posts for more details. I wonder if you get my other symptoms as well?????