Abstract: Method for operating a transmission (G, G2) with a transmission input shaft (GW1), a transmission output shaft (GW2), a gear set (RS, RS2) with at least two planetary gear sets (P1, P2; P21, P22, P23, P25), and an electric motor (EM) with a rotor (R) and a stator (S), whereas, by means of shift elements (A-F, A2-F2), a plural number of gears is shiftable between the transmission input shaft (GW1) and the transmission output shaft (GW2) under load, whereas, in one engaged gear, at least two of the shift elements (A-F, A2-F2) are locked, whereas, upon a shifting process of the transmission (G, G2) from one original gear to a target gear, in a first step (S1), one of the shift elements (A-F, A2-F2) located in the power flow of the transmission (G, G2) at this point in time is essentially set load-free by means of an electric motor (EM), in a second step (S2), the shift element essentially set load-free in the first step (S1) is opened, in a third step (S3), a rotational speed synchronization between two shaft