Toyota has a subscription package called Remote Connect, which lets you do a few things like start air conditioning from their app etc. One of the things you can do is start your car by double pressing then holding the button on your key fob.
But now, you have to have a subscription to be able to do this, even though it is through the key fob which uses radio waves to communicate with the nearby car and has nothing to do with the internet or an app. Cars built before November 2018 won't have this feature disabled without a subscription as they have 3G chips and 3G signals will soon be shut off, so they won't be able to use a subscription even if their owners pay for it.
https://arstechnica.com/cars/2021/12/toyota-owners-have-to-p…
Remote starting cars is a thing now? That's cool.
Shame about the subscription fees