Arrangement for a motor vehicle, in particular for a commercial vehicle, having a controller, wherein at least one driver assistance system is executed on the controller in program-assisted fashion in driving mode, wherein this at least one driver assistance system uses distance and/or speed data from a radar sensor that are accepted by the controller from the radar sensor connected thereto, wherein the controller uses the particular speed of the motor vehicle to change the switching state of the radar sensor, characterized in that there is provision for a radar sensor that has had and/or has information put into it that is able to be used to distinguish between the states "radar sensor not aligned" and "radar sensor aligned", in that the switched-on times of at least the transmission unit of the radar sensor are minimized during the production process of the motor vehicle by virtue of the controller using transducers directly or indirectly connected thereto to cyclically accept and keep further state data of the motor vehicle, and conditions under which the switching state "radar sensor active" or "radar sensor inactive" is maintained or produced being prescribed for the state data in the controller, and the state data being cyclically ascertained and kept in a first routine, and a continuous check being performed in a production control routine to ascertain which of the prescribed conditions are present, and then the associated switching state of the radar sensor being maintained or produced, and wherein the radar sensor transmits no radar beams in its inactive state, in that the state data are at least the alignment state of the radar sensor, the presence of a command for the performance check on the radar sensor, the result of the performance check, the operated state of the parking brake, the operated state of the service brake, the particular speed of the motor vehicle and the status of the production process and in that the controller, in program-assisted fashion, cyclically performs a control sequence in which, if - the radar sensor has not been aligned and the state of the radar sensor is inactive, it leaves the radar sensor the latter inactive and, if the state of the radar sensor is active, switches the latter from its active to its inactive state, if - the radar sensor has been aligned and - a performance check on the radar sensor has not yet been performed successfully or - the parking brake is activated or - the service brake is activated and at the same time the particular speed is zero and the state of the radar sensor is inactive, it leaves the latter inactive and, if the state of the radar sensor is active, switches the latter from its active to its inactive state, if - the radar sensor has been aligned and - a performance check on the radar sensor has been performed successfully and - the parking brake is not activated and - the service brake is not activated and at the same time the particular speed is not zero and the state of the radar sensor is inactive, it activates the latter and, if the state of the radar sensor is active, leaves the latter in its active state, if - the radar sensor has been aligned and - a performance check is meant to be performed and the state of the radar sensor is inactive, it activates the latter and, if the state of the radar sensor is active, leaves the latter in its active state and then performs the performance check and records the result of the performance check. - the radar sensor has not been aligned - the radar sensor has been aligned and - a performance check on the radar sensor has not yet been performed successfully or - the parking brake is activated or - the service brake is activated and at the same time the particular speed is zero and the state of the radar sensor is inactive, it leaves the latter inactive and, if the state of the radar sensor is active, switches the latter from its active to its inactive state, - the radar sensor has been aligned and - a performance check on the radar sensor has been performed successfully and - the parking brake is not activated and - the service brake is not activated and at the same time the particular speed is not zero - the radar sensor has been aligned and - a performance check is meant to be performed