NHTSA Complaint #11674900 — 2014 NISSAN ALTIMA

My son purchased a used 2014 Nissan Altima 4 months ago from a dealership. He noticed it shuttering, delayed acceleration and not having power as well as a noise from the transmission. It had no check engine light but the code P17F1 CVT Judder came up. We looked for recalls and there have been so many on 2014 Nissan Altima's. His VIN number didn't come up for a recall. He paid $6000 for the car and only had it for 4 months, now he is out of a car. The dealership basically said its out of our hands. We can't afford to take it to a transmission shop and have them work hours on it. It is very unsafe to drive and I am concerned what he is going to do. Is there a chance that NIssan would help in this case? It is unfair that he has the issue that so many were recalled but for some reason not his. If you have advise please help. Thanks