A method of adapting the characteristic curve of clutches in a partial dual-clutch transmission of a vehicle, for example a utility vehicle, having a first partial transmission in the form of a dual-clutch transmission (DKG) having a dual clutch (DK) that includes a first clutch (K1) and a second clutch (K2), which can be functionally connected to a drive engine (M), and a second partial transmission in the form of a main transmission (HG) which shifts with traction force interruption and which is arranged downstream from the dual-clutch transmission (DKG) in a drive-train. To achieve reliable and precise clutch control and a consistently high level of shifting comfort, the characteristic curve adaptation of the first and the second clutches (K1, K2) is carried out with the assistance of a pre-loading of the first and the second clutches (K1, K2), while the main transmission (HG) is in a neutral position.