I love reading some of the boilerplate errors and warnings in the manuals that lack any grounding in reality. Silly things like, if your vehicle won't start, then don't use it. Here we see that you may not be able to take your phone in the vehicle with you and still use the vehicle touchscreen.
From the SolterraCONNECT manual page 23
Notes for operating the touch screen
● In the following situations, the screen buttons may not respond or malfunction:
From the SolterraCONNECT manual page 23
Notes for operating the touch screen
● In the following situations, the screen buttons may not respond or malfunction:
- If the vehicle is near a TV tower, power plant, filling station, broadcast station, large display, airport, or any other place from which strong radio waves or noise emanates
- When you are carrying or charging a portable wireless communication device, such as a radio or cellular phone, in the vehicle