VEHICLE DRIVEN BY DAUGHTER. 45 MPH ROAD. TWO (2) VEHICLES IN FRONT OF HER. 1ST VEHICLE MADE AN ABRUPT RIGHT TURN, CAUSING VEHICLE #2 TO ABRUPTLY DECREASE (BRAKING) SPEED, WHICH CAUSE VEHICLE #3 (SCION) DRIVER TO REACT QUICKLY AND BRAKE. DURING BRAKING, ALL FOUR (4) WHEELS LOCKED AND VEHICLE SKIDDED STRAIGHT FORWARD. ANGLE OF SKID SHOWS BOTH WHEELS SIDES WERE STRAIGHT WITH AN APPROXIMATE TWO (2) TO THREE (3) DEGREE ANGLE OFFSET TO THE RIGHT; MAY BE DUE FROM CURVATURE OF THE ROAD. BOTH SKID MARKS WERE COMPLETELY SOLID AND BOTH TRACKS WERE IN A STRAIGHT LINE. UPON FRONT END IMPACT WITH VEHICLE #2 IN FRONT OF THE SCION, THE FOLLOWING ISSUES ARE OF CONCERN: 1. FRONT DRIVER AND FRONT PASSENGER AIRBAGS DID NOT DEPLOY. NOT KNOW IF IMPACT (DECELERATION) WAS HIGH ENOUGH TO ACTIVATE. HOWEVER, VISUAL INSPECTION OF VERTICAL SENSOR SUPPORT BEAMS (BOTH LEFT AND RIGHT) ARE SIGNIFICANTLY DISPLACED AND BENT. 2. SEAT BELT RESTRAINT SYSTEM (FRONT - DRIVER AND PASSENGER): THE SEAT BELT RESTRAINT SYSTEM APPEARED NOT TO FUNCTION AS DESIGNED. ACCORDING TO THE DRIVER AND PASSENGER, BOTH WERE WEARING THEIR SEAT BELTS. UPON IMPACT, THE DRIVER'S LOWER BODY PROPELLED FORWARD AND HER KNEES IMPACTED THE LOWER DASH ASSEMBLY. ADDITIONALLY, HER UPPER BODY WAS PROPELLED FORWARD, THE SEAT BELT DID NOT LOCK, AND THEN BRACED HERSELF WITH HANDS AND ARMS TO PREVENT HER HEAD FROM STRIKING THE STEERING WHEEL. ADDITIONALLY, THE RIGHT FRONT PASSENGER EXPERIENCE THE SAME PROPELLING OF LOWER AND UPPER