Tail Light Switch problems of the 2017 Nissan Rogue

Over the last month, I continue to experience the front end collision crash sensor erroneously engaging, almost daily. I also get a front end sensor malfunction warning. The sensor was supposedly replaced twice by the dealership while under warranty, however, I still continue to have these errors pop up. I also hear, when backing up, a rubbing sound like the suspension is bad on the rear of the vehicle. I notified the dealership, but they told me there was no issue found. The driver's seat constantly squeaks, like something is lose underneath (like the bolts attaching it to the frame). There is also a squeaking noise that comes from the back of the vehicle. The dealership told me the sound was coming from the panaramic sunroof, and they tightened the bolts, however, the noise remains. Frequently water becomes trapped in the rear tail lights after getting a car wash. The lights are still functional, for the time being.