2011 Buick Regal steering problems

The throttle body has a defect which shuts off all power to vehicle with no notice. The engine and transmission lock up you lose all steering control and no brakes. Also no lights so when it happens at night it is pitch black. GM does know about the problem and when I questioned them about the loss of life like what happend with the chevy cruze all members of GM are told to hang up the phone. It has happend on several occasions and the dealership sent me back on the road knowing the problem.

Tl* the contact owns a 2011 buick regal. While driving at an unknown speed, the engine lost power, stalled, and the steering seized without warning. The vehicle was able to restart. The vehicle was taken to the dealer where it was diagnosed that the camshaft failed. The vehicle was repaired; however, the failure recurred. The vehicle was taken back to the dealer where it was diagnosed that the throttle body failed. The vehicle was repaired and the failure recurred. The vehicle was not repaired.