I have a Telluride. I’ve been downgraded to Lite which gives you notifications if you forget to lock your car. But remote start is no longer available.
The way it worked seems to be polling since you could wait around up to a minute for the car to perform a command.
The worst part is the car does not have “local” remote start. I’d have to buy another piece of equipment for that and install it. It’s not available at all on the key fob.