Gas Recirculation Valve (egr Valve) problems of the 2016 GMC Terrain

I was driving to work this day then all of a sudden I heard a noise. Something like a fan. I thought it was the wind so I let the window down and listened because their were no lights on my dashboard. Then all of a sudden every light came on and it said reducing speed. I continued down the road. . . Came to a red light and wasn't able to move after that. I had to get the vehicle towed to my home. I was in maywood and had to go all the way back to lynwood. Not before waiting 87 mins before the tow truck came in 6 degree weather. I had to go to the police station because it was too cold for me to be in the vehicle. I then got it towed to the repair shop the following day and was told it was my engine. . . Again. The rear main seal had blown.