Where does 4G connection come into play here?

"Key fob remote start has nothing to do with an app, nor does the car or the fob communicate with any servers managed by Toyota."

It sounds like this $8/month charge is for the allowing you to use remote start locally presumably over RF.

The $8 fee is the remote connect bundle, which is a collection of app connected features (ie lock/start/monitor status of windows and doors) that connect via cell network.

The fob start is a feature they decided to bundle with the others.

> $8 in this case also has to cover the cost of the 4G connection, which likely is in the $1 to $2 range.

I could get a suitable data line myself for $1, at quantity one. I doubt Toyota has to pay anywhere near that much.

Hmm at a previous company we paid about $1.25/mo/device to connect to T-mobile's 2G network. Knowing how "Enterprise" pricing often works in other sectors, I actually wouldn't be surprised if larger companies pay more per connection than consumers (ostensibly because of "Enterprise" features like dedicated support or uptime guarantees, but really because they are motivated enough to bear the higher cost).