NHTSA Complaint #11609783 — 2024 GMC TERRAIN

Purchased new from dealership 2024 GMC Terrain 4/2024. On 6/26/24 while driving the vehicle the transmission came apart and the vehicle suddenly stopped and would barely move off of the roadway. Had this happened 2 min prior while at highway speeds in crowded conditions, I can only imagine how many injuries could have occurred. My vehicle had 3800 miles on it. Upon my personal research, I found that this is a known problem with the 2024 GMC Terrains and dealerships across the country are filled with vehicles with the same problem. The dealership admitted to me that this has become "a known issue" and that they currently had 7 others with the same issue. They had my car for 8 weeks and according to my paperwork had to repair it twice as it failed the first repair road test! I filed a compaint with GM and was told "to not believe third party sites". I repeatedly asked why this wasn't a recall and they refused to answer the question. Does someone have to have their brand new transmission blow apart at 80 mph and take out others on the highway before they recall this? GM has issued multiple service bulletins to their dealerships but nothing to the public. I tried talking to the dealership and was belittled and stonewalled. Please recall these vehicles before someone is killed. I was finally given my vehicle back from the dealership today after 8 weeks because of no parts available. I am worried they repaired with the same parts that failed in the first place.I have the repair paperwork for your inspection if you would like to review it.