I have a 2012 Impala. The heating system does not get the job done in this climate (gets cold up here). The rear seats get next to no heat from the small duct under the front seats. There is not enough force of air coming out to feel any heat at my feet. The air that is directed out to the driver's feet is also bad. The plastic duct is too short to get the job done. It appears to me that some engineer decided to save a penny or two on plastic and not bring the air out to the driver's side of the console and direct some of the air back as done on the passenger side front. There is more air going up under the dash that any other area of the car. Remember, guys, heat rises. Put it on the floor where it belongs. I can do a better job with a piece of cardboard that you have done with all the tech equipment. I have been to the dealer and they have looked it over and said that everything is in the proper place, including the wire bundle under the driver's seat.
Let me know when I can take it in and have something done to correct this problem. I can't take any guest out with this car when it is cold. I froze them the other night. My Toyota was a hell of a lot better than this. I asked the dealer if I could have my Toyota back to get through the winter. Save the customer some money and don't install the OnStar unless they want it. I personally think there are already too many noses in my business. This thing is only going to cost me money and I will want to remove it. Too much junk.
