What's the factory reset? I would love to try it!
From the manual:
Model S Owner's Manual | Tesla
See an overview of each setting in the Controls panel, from Windows and Locks preferences to Autopilot settings.
www.tesla.com
Factory Reset: Erase all personal data (saved addresses, music favorites, HomeLink programming, etc.) and restore all settings to their factory defaults. This is useful when transferring ownership of Model S. Before erasing, you must enter the credentials for your Tesla account.
Erasing Personal Data
You can erase all personal data (saved addresses, music favorites, HomeLink programming, etc.) and restore all customized settings to their factory defaults. This is useful when transferring ownership of Model S. Touch Controls > Service > Factory Reset. Before erasing, Model S verifies your credentials by prompting you to enter the user name and password associated with your Tesla account.