An actuator system for a vehicle transmission, where the system comprises an actuating unit and an electric motor drivingly connected to the actuating unit. The actuating unit is configured for being displaced by the electric motor between an engagement mode where the transmission is connected to a propulsion unit and a disengagement mode where the transmission is disconnected from the propulsion unit. The system further comprises a clutch unit arranged between the actuating unit and the electric motor and connected to a drive shaft of the electric motor. The clutch unit is configured for connecting the actuating unit to the electric motor when displacing the actuating unit between the engagement mode and the disengagement mode. The clutch unit is configured for disconnecting the actuating unit from the electric motor in the engagement mode. The system further comprises an oil pump unit drivingly connected to the electric motor, where the electric motor is configured for driving the oil pump unit at least in the engagement mode.