The invention relates to a device for the determination of the inclination of the roadway in a vehicle, with an arrangement (4), for at least the indirect determination of parameters, which at least indirectly characterize the inclination of the roadway. Said arrangement (4), for the at least indirect determination of parameters which at least indirectly characterize the inclination of the roadway, forms a construction unit (5) with a device (1) which may be operated by the driver for setting a driver command which alters or sets the driving state of a gearbox unit.