Up until 2019 or so the key fob remote start will work forever without a subscription. But for the newest cars they are saying once your subscription to the app

Up until 2019 or so the key fob remote start will work forever without a subscription. But for the newest cars they are saying once your subscription to the app and remote service stops, your radio key fob based remote start will stop working also. Some of their models only get support for 3 years, after that it is $8 a month