Abstract: A monitoring process for a set value indicator of a drive motor of a motor vehicle which comprises simultaneously monitoring a brake actuation signal and the non-movement of the set value indicator. In case of an error an error in vehicle operation, e.g. the brake is operated but there is a non-movement of the set value indicator because of accelerator blockage, the motor output is reduced to a small value and the vehicle can accordingly be decelerated if e.g. the accelerator pedal is blocked. On the other hand, in accordance with the invention, the safety circuit which decelerates the motor vehicle does not respond if it is detected by means of the movement of the set value indicator that the driver desires an increased motor output, e.g. by detecting an above-threshold value for the time derivative of the set value indicator.