Transmission Not Engage problems of the 2020 Nissan Rogue

Driving down ohio pike after a short stop, car felt like it was driving in a low gear or not shifting and the manual option was not engaged. Traveling approximately 35-45 mph for about a mile or so when all of a sudden the steering wheel jerked to the left and car decelerated into oncoming traffic turn lane. Thankfully no one was in turn lane. I put car in park, collected my thoughts, daughter reached over and put hazards on. There were no warning lights on the dashboard and the weather was cloudy but dry conditions. I was able to drive the car to a parking lot across the two lanes, turn the car off, restar it drive it around the parking lot and then attempt to drive it to Nissan dealership 3 miles away. The car still seemed to not drive like it was in the correct gear so pulled off into a restaurant parking lot and eventually was towed to closest Nissan. It has been one week, I still do not have my car back because dealership will not release it back to me for safety reasons. The dealership indicated they are working with Nissan. I was given a loaner car to get home in another state. This is is a lease car that I am paying for and not able to use and now I am scared to drive. As of now dealership told me a wire came loose from the computer.