We were driving our 2021 Escalade Cadillac on the highway and the check engine light came on and then 10 seconds later the engine completely stopped without any further warning. If we had not been right by a highway exit, we would have stopped right on the highway. When the engine stopped completely, everything was useless. We couldn’t use the windows or locks or even put the car into neutral to roll it off the highway. It took 5 hours for a tow truck to get to us and we had to wait with the car the entire time because a window was rolled halfway down and we could not lock the car. Our car was towed back to Midland, TX and now requires a brand new engine. The engine is on back order and there is no expected date. We may not get our car back for months.