It was a technical service bulletin (TSB). The trunk hatch is supposed to open with one push of the button that's underneath it, but mine doesn't. I have to push it twice and hold it while I lift the hatch myself. I always just thought it was a stupid design choice by Nissan, but I found out from another thread that it was an issue a lot of people were having. I guess it's kind of like a recall, but less severe of an issue. The dealership should fix it for free though
