2002 Chevrolet Impala steering problems

This car was one-owner and very well taken care of and serviced routinely. I was driving home from work on the interstate and my car just lost power. I had no control of the car. It slammed into the concrete medium wall on drivers side, then spun around and lodged underneath the trailer of a semi-tractor. The semi hit the brakes and it projected me back across upon the top of the concrete medium where my car just rode to a stop. The air bags did not deploy.

Tl*the contact owns a 2002 chevrolet impala. The contact attempted to exit his vehicle, but was locked inside the passenger compartment. The radio displayed "locked" and he could not exit the vehicle through the doors nor the windows because the electrical system failed. The representative at the dealer stated that he owned the same year, make, and model vehicle and had experienced the same failures.