While driving on the highway at maximum speed limit, I had a series of error messages that covered the complete screen. At the same time, my MPH dropped to zero although I was traveling probably 70 miles per hour. I had no control over the vehicle, no steering, I had no brakes. There was no way to control the car. Fortunately, I was traveling in a low populated area of the [XXX] between Los Angeles and Las Vegas in the far right lane, as I was preparing to exit less than a mile to a Super Charger Station. I was able to get off that exit but since the odometer had a 0 reading, I had no idea what speed I was still traveling at. When I reached the end of the freeway exit, I was unable to stop the vehicle at the stop sign, running it while attempting with all of my strength to veer to the right on to a desolate road. The only thing that saved the car from running the stop sign at what I can only guess would have been 60 mph was a slight incline in the off ramp which slowed the car to about half that when I managed to make the turn. From there, I coasted to a rolling stop about 200 ft from exit, half on shoulder, half stilI on road. I was not able to put the car in park nor see what gear the car was in due to the flashing warnings blocking the display screen. I could not use the hazard lights, the gear shift, power off, open glove box, turn off display, open trunk, as if it was in D. Once exited, no way to get back in the car. Tesla ER Service only able to tow next A.M. to nearest S C, 85 miles at my expense. Sat in car as getting dark, cold along desolate road with no services, until my ride could get me over 4 hrs or stay in car overnight with temps of 20°. After 2 days at Tesla, told steering rack failed, $4,900. Any other time, I would have plowed into the car in front of me at 70mph with no way to stop or steer away. Only prevented by the empty freeway I just happened to be traveling. Tesla claims to have no idea why this part failed at this low mileage. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMAT