NHTSA Complaint #11551401 — 2020 HONDA ODYSSEY

My wife was driving our honda odyssey on a state highway and it began lurching and drastically reduced speed while in 65 mph traffic. The vehicle almost created a large accident as it uncontrollably and suddenly reduced gears and instantly slowed well below the rate of travel of the vehicles on the road. She managed to pull over on the side of the road but was unable to move the vehicle . There was never a check engine indicator or any other warning signs prior to this happening. The vehicle was towed to the local honda dealership in Scranton PA. Today the service center there stated that the transmission fluid was charred and burnt up gears in the transmission. This is a huge safety concern as there was no warning signs of the issue until the vehicle rapidly and suddenly shifted down gears and slowed to almost a complete stop along the highway. The vehicle is only 3 years old and is 900 miles over the powertrain warranty. Has there been a check engine light or any indicator we could have had the problem addressed before it became catastrophic and put my families lives in jeopardy. The vehicle has been regularly maintained