A pedal box for a motor vehicle, comprising clutch (1), brake (2), and accelerator (3) pedals that are mounted to respectively rotate about a corresponding pivots (X1, X2, X3) between a rest position and a position of maximum actuation after passing through a multitude of intermediate positions. A link (4) located between the accelerator pedal (3) and the brake pedal (2) places the brake pedal (2) in an intermediate position or a rest position depending on whether or not the accelerator pedal (3) is in a rest position.