Brakes Failed problems of the 2013 Kia Motor Optima

Breaks went completely out while driving on freeway. Was diagnosed and this is the technician story verbatim verified customer concern can hear gurggling noise coming from brake area even when vehicle is off. When moving vehicle into stall. All brake system failed and check brake system warning came on. Inspected fluid level. Fluid level ok at this time. With vehicle off can hear esc module actuating. Connected kds and performed actuation test. Actuation test failed. Recommend replacing esc module and brake pedal assembly and retest customer declines to replace at this time -discounted rate: $4839 plus tax (need to order) -reg rate: $5400 plus tax (need to order) manufacturer is denying any responsibility to repair. I contacted a lawyer who said the manufacturer is responsible for safety defects.

Vehicle in reverse backing up on steep driveway, foot on fuel pedal, car began its automated hill holding function, while in reverse, heard high rpm, transmission was slipping into neutral, car began rolling forward, put foot on brake, brake failed, car accelerated rapidly, and engine died, then hit the wall inside the garage. I estimated, speed at time of impact approximately 10 to 15 mph. Noticed another entry filed similar to this,had same fuel, brake fail symptoms.