Transmission issues and losing speed on highways multiple times. Even though I was still on the gas, my speed would drop rapidly on the freeway before eventually abruptly jerking forward after several minutes.

It's just bad manufacturing assembly, when we had open and we found in the transmission missing a magnet collector on the bottom plate. We started checking all items piece by piece, we found the piston in the body valve is made from light material and it was damaged too from a metal chip. I thinking this is probably big cause for early damaging the transmission.