NHTSA Complaint #11642355 — 2021 JEEP GRAND CHEROKEE

I drove my car out of my garage on the way to work and just outside my house, the transmission bucked when shifting from 3rd to 4th gear and the p0733 code appeared. I turned around and went home and took another car to work. I had previously taken my jeep with ~85,000 miles to my local dealer wanting the 4 wheel drive and transmission service as I do with all of my cars. It was driving fine, but seemed like the gas mileage was decreasing a bit which I shrugged off. The dealer informed me that the transmission wasn't serviceable. I thought this was odd, but they did the 4 wheel drive service and said everything was good. When I got the error code, I called my local independent transmission shop who said they could look at it in 2 days, so I didin't drive it until the ~10 minute drive to drop it off. They called the next day and said the transmission was done- burnt fluid and bits of clutch in the fluid. They couldn't even find a rebuilt trasmission because according to them so many are failing. They quoted me $8700 for a new transmission from Jeep which I begrudgingly agreed to because what else could I do? I've had one car's transmission fail (Jeep Wrangler but it had 220,000 miles and was 15 years old so I could accept it. The shop received the new transmission from Jeep and then called me saying the valve body was bad, it would not communicate with the car. They went through warranty struggles with Jeep who after another week finally sent another valve body, which also did not work. Finally, they figured out they were sending unprogrammed valve bodies with the transmission and the car needed to be towed to the dealer to program...more $$$. So, after a3+ weeks I finally got my car back today. I've looked online and wondered what I could have done- there are so many similar examples out there of similar experiences, Wrangler transmissions failing with low miles; it's unforgivable that Jeep says the transmission can't be serviced!