Without any prior symptoms or warnings when I was driving on the highway I felt the car losing power and the car started to slow down in the middle of the road and then check engine light came on when i was on my way to pull over. When I stopped, I felt a strong vibration throughout the car, as if it was about to shut down. Then it actually stopped. I tried once to start it, but failed. I towed the car to the dealership .It took them 4 days to diagnose it , l They charged me a diagnose fee for removing the top of the engine and then a separate fee for removing the bottom of the engine. Then they told me they had to call Cadillac support because they didn’t know what to do.I waited about a week to know the result and then unfortunately they told me that I had to replace the entire engine and pay about $13,000. Let me tell you I was at the same dealership 4 days before what happened. I was there because they recommended me to do a throttle body cleaner. I did the recommended service and they confirmed that everything was working properly and the car is perfectly fine. Let me also tell you that I do all the maintenance, I change the oils even before the time for changing them, I use a premium gas from top tier station, Now the car at the dealership since February 2025 , my car’s engine is back ordered, they don’t have any expectations or time frame or even average wait time! So frustrated and nothing to do. It is truly a disaster and I do not know what I did to deserve this material and moral suffering. I hope to God that you help me to be justified in this clear injustice. Thank you;