Presumably this uses a SIM card, where Toyota is paying a network provider for connectivity. So... it seems reasonable to ask for a subscription payment?

Although, I think making a key fob with a SIM card makes it unnecessary complicated, I wonder if on the fob side it's Bluetooth instead, and requires a smartphone with connectivity, plus a Toyota app.

I guess it'd be better for them to add the x years' (x = average car's lifetime) worth of SIM subscription fee to the base price of the car, to stop this complaining.