We are extremely disappointed in the winter performance of our Model Y. This is our second winter and last year we had one day or so where weather lead to windows freezing to the seal so they were unable to open (which means we could not get in or out of the car). This year we have had several days already with this issue and frankly this makes the car unusable and unsafe (if we can't exit a vehicle when we need to, this is not safe!--and in this instance we had been driving for 30 mins with the heat on and still had frozen windows). There is more cold weather coming and we basically feel we can't use our car to go to skiing because of this (which is our plan over the holidays). We preheat the vehicle for up to 30 mins (sucking battery life if you have to do this every time you want to drive your car), have had Tesla put a special product on the seals and all this has not worked. We do not have a garage but really that doesn't solve this issue as we don't have garages at every destination. My husband went to bring the car into Tesla for servicing to see if they could add another coating of the spray on the seals and they refused to do this (they said that it should last three years --even when he told them it is clearly no longer working). Then when my husband tried to point out that it seems to be a major design flaw, he was told it was a "car problem, not a Tesla problem"!! What does this mean??? We are both so frustrated that we are now looking into what other electric vehicles we could trade it in for. If we had known that frameless doors would be so brutal in winter, we would never have purchased this car. I guess that is our issue for not doing enough research in that regard. Anyone else have any other solutions we can try before we give up on Tesla?