NHTSA Complaint #11434586 — 2018 NISSAN TITAN

My Nissan has 35 thousand miles on it it use it as a pleasure vehicle. I was driving the other day and it started shifting really high motor racing loud and not really going anywhere. It was like the transmission was slipping. It had never done this before. I thought it was a isolated incident but the next few days going to get gas and groceries (17 miles one way) it did it again this time starting in low gear the tachometer raced up to 5 -6 thousand rpm before it shifted and when it hit 2gear it did it again and 3rd gear all the time acting like the transmission was slipping. I read on some sites that this model has this problem and nobody seems to want to take accountability for this problem. I paid 33thousand dollars for this truck and it isn’t even broken in but it is broken! So help me what should I do I ask you first so you can give me guidance! Thanks Dennis Nash