NHTSA Complaint #11653187 — 2021 GMC YUKON

I was driving my vehicle at a speed of around 50 MPH when the vehicle had an sudden loss of power. The vehicle displayed press the start button while the vehicle was still moving with the motor off. I pressed the start button and the vehicle shifted to park and went to complete loss of power functions. The hazard lights would not work, the vehicle would not start or move out of park. The vehicle was stuck in the fast lane in park with no way of moving it or warning others with hazard lights. My daughter and I almost got hit by a semi due to the vehicle issues. I had to call 911 to get police there for safety concerns and a tow truck to take the vehicle back to the dealership. The tow truck couldn't get the vehicle out of park as well, so he had to drag my vehicle onto the tow truck. I have a 2021 Yukon Denali with the 6.2 engine. The dealership told me I need a new engine because of a known failure with the engine. They can't promise me replacing the engine will fix the issue. The vehicle has less then 60,000 miles on it. This engine issue put my life and my daughters life in danger. I had to carry my daughter across the highway because it was unsafe to stay in the vehicle. I can only imagine what could of happened if we were traveling at higher speeds with no way to exit the vehicle. The dealership told me it is going to be 3 to 4 months before I get my vehicle back and they can't promise the new engine won't do the same thing. This is a huge safety concern that GMC needs to address. I am stuck paying for a vehicle that puts my family in danger. Something needs to be done immediately. The dealership told me they have several Yukons in the shop with the same issue waiting for an engine replacement.