Loud Engine Noise problems of the 2017 Buick Lacrosse

On November 19, 2016, I purchased the 2017 Buick Lacrosse premium awd. On that same day, while I was driving on the highway the overheated engine light came on, beeping sound, oil light came on, shortly vehicle indicated immediately to stop, which I did, stranded on the highway in en route to dealership. I had just left the dealership approximately five minutes ago after I purchased the vehicle. The vehicle was towed to dealership. Simultaneously at 4:48 p. M. Est, onstar sent notification via email stating, "a critical issue with the engine and transmission system in your 2017 Buick Lacrosse awd has been detected. . . Please service your vehicle immediately. " on November 20, 2016, I rescinded my contract with dealership connected to the above issues. On November 21, 2016, dealership fully refunded $47,848. 19 and continued its possession of said vehicle since November 19, 2016. On September 10, 2016, I ordered the vehicle with the dealership with high expectations on a new vehicle. The dealership did not disclose to me about the above problems and safety issues prior to my purchase. I felt unsafe in the vehicle because it was making loud noises underneath the car as I drove it, for example, I felt like I was going to blow up in the vehicle. I also felt unsafe driving at low speed with the emergency lights on on the highway. I felt unsafe stranded on the highway in the vehicle, waiting for the tow truck.