NHTSA Complaint #11448905 — 2018 BMW 330E

In May 2021 I purchased a 2018 Certified Pre-owned BMW 330e Plug-in Hybrid with 20K miles from the BMW dealership at Glendale, CA. My car is under original manufacture warranty to this day but I also have paid for an extra warranty and maintenance program. On December 26th, 2021, as I was driving back from Las Vegas on highway 15, about 40 miles into the trip, my car dash displayed an error message "Charging Malfunction" immediately after this error, the entire car systems INCLUDING BREAKS AND STEERING WHEEL! stopped working. I lost control of my car and my car went towards the right side of the road where there's no asphalt and it's all dirt and pebbles. car was finally stopped with the help of manual handbrake but I was terrified and I felt lucky to survive the incident. BMW roadside assistance towed my car to the BMW dealership in Las Vegas since it's the closes dealer. they said they don't have any loaner car and I should get rentals and they will pay for it at the end since it's part of my warranty is to provide "Transportation" while the car is at the shop. they also said once my car is fixed, they will "reunite" my car in Los Angeles. 2 days after, the dealership declined any repair due to a leak on the radiator and I was told my car was "Overheated". Although my car had no indication of overheating ever or at the time of the incident. The picture I took from the error also shows the temperature of my car which is normal. See picture. I can't wrap my head around losing break and steering wheel without any prior error or indication of overheated car. BMW is can't explain why and neither can my insurance after reviewing my car's computer logs, how could I trust driving this car again if break and steering wheel could fail without any prior indication of overheating or low coolant or ANY error? A car that is still under manufacturer warranty with only 31K miles! who will be responsible if I crash and get injured or die if this happens next time?