A brake pedal crash safety device for a vehicle in which a brake pedal arm is rotatably mounted to a first vehicle body component and has a first locking element, shaped as a circle-sector and having its geometrical center at a center of movement of the brake pedal arm. A second locking element is mounted to a second vehicle body component. The second locking element is mounted a predetermined distance from the first locking element. The predetermined distance is constant and has a predetermined amount of allowable movement therebetween for a brake pedal arm position. A crash force applied to a front of the vehicle displaces the first vehicle body component toward the second vehicle body component and the predetermined amount of allowable movement between the first and second locking elements will be closed, irrespective of a current pedal position, thereby preventing further rotation of the brake pedal arm through interlocking first and second locking elements.