A device for the operating of an automative cruise control system for an automobile vehicle comprises means to separate the travel of the accelerator pedal into two parts. The depressing of the pedal in the first travel part engages the automotive cruise control system, the pull-back force of the pedal being smaller in the first travel part than in the second travel part. The device can be applied especially to vehicles equipped with means for checking the distance and/or the speed of obstacles located in the path of the vehicle, the pace of these vehicles being regulated or controlled as a function of the information on distance and/or speed given by said means. More generally, it can be applied to any vehicles equipped means of automative cruise control.