APPROACHING INTERSECTION THE TRAFFIC LIGHT CHANGED AND ATTEMPTING TO STOP VEHICLE, THE BRAKE PEDAL WENT TO THE FLOOR BOARD, BUT THE VEHICLE DID NOT STOP BEFORE IMPACT WITH ANOTHER VEHICLE. SPEED AT IMPACT WAS APPROX. 20 MPH AND NEITHER AIRBAG DEPLOYED. JUST RECENTLY HAD VEHICLE AT DEALERSHIP TO HAVE SOFT BRAKE PEDAL CHECKED, AND WAS TOLD OF SIMILAR COMPLAINTS CONCERNING PROBLEM. *JB