2012 CHEVROLET VOLT. CONSUMER WRITES IN REGARDS TO BRAKE FAILURE AND VEHICLE ACCELERATION ISSUES. *SMD THE CONSUMER STATED HIS WIFE HAD AN ACCIDENT. SHE STATED THE VEHICLE ACCELERATED ON ITS OWN, AND APPLYING THE BRAKE DID NOT STOP THE VEHICLE. SHE WAS TRYING TO PARK DOING BETWEEN 8-10 MPH, WHEN THE INCIDENT OCCURRED. HIS WIFE DAMAGED TWO OTHER VEHICLES, AND HER VEHICLE WAS TOTALED. WHEN THE CONSUMER ARRIVED ON THE SCENE, HE STEPPED ON THE BRAKE PEDAL, AND IT WENT TO THE FLOOR AND A DASH LIGHT ON THE INSTRUMENT PANEL READ BOOSTER BRAKE NEEDS SERVICE.