It looks like subscription plans are the way of the future for automakers. This follows Toyota making remote start a subscription service retroactively [0] [1]

[0] https://www.thedrive.com/news/43329/toyota-made-its-key-fob-...

[1] https://news.ycombinator.com/item?id=29543194

At least you can disable the subscription during the summer and save some money =)