Disclaimer: I have not purchased so I can't say for sure. The Upgrades menu is on the main list of options when you open the Tesla app on Android. I have not a

Disclaimer: I have not purchased so I can't say for sure. The Upgrades menu is on the main list of options when you open the Tesla app on Android. I have not activated it myself by accident, but once you tap Upgrades, it loads the available options. There are 2 for me. If you "check" one of the options, it will be checked the next time you come back to the screen. After a checkbox is checked, there's a Pay Now link at the bottom of the screen. That's the workflow. I personally find it hard to believe it could be navigated completely by accident, but the placement of the menu option and the persisting of the checkbox across re-visits to the Upgrades screen make me think it's possible.