TL*THE CONTACT OWNS A 1992 LEXUS LS400. WHILE DRIVING 30 MPH THE CONTACTED APPLIED THE BRAKES; HOWEVER, THEY FAILED AND THE VEHICLE DID NOT STOP UNTIL IT CRASHED INTO THE VEHICLE IN FRONT OF HER. THE DRIVER FRONTAL AIR BAG DIDN'T DEPLOY. THE VEHICLE WAS TOWED TO A TOWING YARD. THE MANUFACTURER WILL BE CONTACTED. THE FAILURE AND CURRENT MILEAGES WERE 168,000.