Brake Master Cylinder problems of the 2007 Lexus ES350

The contact owns a 2007 Lexus Es350. The contact was driving approximately 10 mph and the brake pedal was abnormally depressed into the floorboard when engaged and without response. The contact was able to stop the vehicle after several attempts. The vehicle was taken to an independent mechanic where the front and rear brakes were replaced. The failure continued after the repair so the vehicle was taken to a different independent mechanic for inspection where they stated that the master cylinder could possibly need replacing. The manufacturer was not made aware of the defect. The approximate failure mileage was 41,985.