You don't need to hack anything. This is from Tesla's Privacy Policy; > For Vehicles other than Roadster, you may opt‐out from our automatic collection of Tele

You don't need to hack anything. This is from Tesla's Privacy Policy; > For Vehicles other than Roadster, you may opt‐out from our automatic collection of Telematics Log Data by sending a written request to Tesla or by adjusting the privacy settings through the touchscreen of your Vehicle, if such functionality is available and has been enabled on your Vehicle. If you opt‐out from collection of such Vehicle data, please note that we will not notify you of issues applicable to your Vehicle in real‐time and this may result in your Vehicle suffering from reduced functionality, serious damage or inoperability. > You may also opt‐out from transmission of any data between your Vehicle and Tesla as follows: (a) for Roadster, by switching off the modem in your Vehicle, or (b) for other Vehicles, by sending a written request to Tesla pursuant to Section 11. If you exercise this opt‐out, please note that we will be unable to notify you of issues applicable to your Vehicle in real‐time and this may result in your Vehicle suffering from reduced functionality, serious damage or inoperability and it may also disable many features of your Vehicle, including periodic software and firmware updates, remote services, interactivity with mobile applications, and in‐car features such as navigation and location search, Internet radio, voice commands and web browser functionality. Alternatively, you can remain fully plugged into their cloud services, get all the latest software updates, and that could come with new notifications in the UI that third-party modifications have been detected which could damage the vehicle.