NHTSA Complaint #11468147 — 2020 CHEVROLET TAHOE

My engine light keeps coming on randomly. When this occurs, the dashboard lights blinks and I get a " steering assist" error message. Once this happens it is really hard for me to steer AND I lose acceleration as well. Imagine losing acceleration in the middle of an intersection. Also, I noticed my temperature gauge moves up & down as well. I have taken it to the dealership each time it happens and they are saying they haven't been able to replicate the issue. The engine light only stays on for a few hours or days and the problem goes away once the engine light is off. From my research, this was the same exact problems the 2015 Chevy Tahoes had as well. I don't understand why they cannot figure why I am having this issue. The engine light errors code listed alot of issues yet they still can't diagnose a problem. They have updated the system and checked all wire connections per the dealership. This is my third or fourth time complaining about this issue and this is the dealership's third or fourth time trying to diagnose the problem but they keep telling me they can't.