2011 Buick Regal engine 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 approximately 25 MPH, the check engine warning indicator illuminated intermittently, which caused the vehicle to go into limp mode. The contact mentioned that the vehicle failed to accelerate more than 1 MPH. In addition, the vehicle needed to be restarted in order to operate. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 83,000.