While driving at approximately 20 mph on rough asphalted road (city road under construction) I applied the brakes in a normal fashion only to be met with violent shaking of the car and an unresponsive brake pedal. After pumping the brakes several times I was able to bring the car to an abrupt halt, narrowly avoiding an accident, i.e., I was inches away from smashing the car in front of me. The violent shaking felt similar to when an ABS is engaged, though more pronounced. I have an appointment with the dealer next week but am documenting the event given the numerous reports I found online and the multiple reports of the dealers doing nothing to remedy the safety issue. The vehicle has not—as of yet—been expected by the dealer. No warning lamps or messages appeared during the incident. This happened once before under similar circumstances approximately two weeks ago but I wrote it off as a