I bought my 2022 Yukon XL on [XXX]. On Friday [XXX], only a few weeks after having my car in the shop (at the dealer) for running rough, it started to make an odd high-pitched noise and running very rough at higher speeds. I immediately called the dealer and asked how quickly I could bring the car in to be checked. They said they had no availability for over 10 days, and offered me an appointment for then. By the next morning, it seemed to be running better and I didn’t have to drive much that day so I hoped it would make it until the appointment. That Sunday [XXX], my husband and I drove the car to a sporting event with our children and it seemed to be ok. On our way home, however, just after crossing a long causeway over the bay, the car’s motor just stopped working in the middle of driving on [XXX] in Miami. We were in the left lane and had to try to change multiple lanes while coasting only, and were only able to get off the traffic lanes because there happened to be a side street that came up quickly enough to turn onto before the car came to a stop. It was completely unexpected and without warning, and had we been on the interstate or even the causeway we had just come off of, it could’ve easily caused an accident with my whole family in the car. Once stopped, it wouldn’t crank or even try to turn over, no matter what we tried. It took 2 tow trucks because we couldn’t even change/move gears enough to put it in neutral, so couldn’t use the flat bed that arrived first. We were stuck for hours in a less than desirable area of town. The dealer took a week to look the car over, then said the engine had seized up and would need to be replaced. The engine was on back order and it took over 6 weeks for the replacement. After replacement, 2 separate issues arose over the following 2 weeks, each the result of a component not being properly tightened during the engine replacement by dealer service technicians. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)