Sorry I was really tired when I responded to that. I thought you were a different person responding to a different comment. I went to ioniq guy's site and it looks like the issue I was thinking of was this:

Installing the device causes minor driver's seat movement before starting the car with the 'easy access' feature enabled. Start the car within 5 seconds or disable 'easy access' to avoid this. You can view the behavior in a video

which isn't that big of a deal. idk why I remembered something bigger. I should have ordered this a long time ago.