Is there a practical way to block any outgoing communication and telemetry from getting sent? Like a Little Snitch but for your car?
My other car with telematics was built in 2016 with a 3G modem that also no longer works.
The car has a bad habit of calling the emergency hotline on a race track if you go over rumble strips (those painted red/white strips) because it shakes the car so violently I guess. Popping the fuse will make it stop happening.
similarly it is /possible/ though a giant PITA to take apart the front of your car and make those work again, per some blog post i saw 4 years ago and can no longer find.
I think this is also true on the Toyotas, but I do not carry a phone with me so it's just me streaming tunes on the XM radio [don't think this tracks/listens].
>your music only comes from the back
However, you barely notice the single missing tweeter, and it is *but a small item on my car-care maintenance list [to add back the sound via harness jumpter/bypass].
It's easier to just disconnect both antenna from the modem OR disable power to it entirely.