A shifter assembly for controlling the transmission of a vehicle comprising a rotatably mounted actuation element that is rotatable for selection of a shift stage, and at least one locking assembly (8, 9) configured to lock the actuation element against rotation, wherein the actuation element is provided with a locking track having a plurality of locking projections, wherein the locking track is provided on the circumference of a ratchet wheel (4, 5) connected to the actuation element; wherein the at least one locking assembly (8, 9) includes a locking member that is rotatable about a rotational axis between a first position in which the locking member engages the locking track such as to lock the ratchet wheel (4, 5) and the actuation element against rotation in at least one rotational direction and a second position in which rotation of the ratchet wheel (4, 5) and the actuation element in the one rotational direction is allowed, wherein the at least one locking assembly (8, 9) includes: a blasing member applied to the locking member to rotationally bias the locking member into the first position; and an electrically activatable retaining device to retain the locking member in the second position when electrically activated such that tne locking member is prevented from rotating and engaging the ratchet wheel (4, 5) under the force of the biasing member; characterized in that the ratchet wheel (4, 5) is configured such that when the locking member is in the first position, rotation of the ratchet wheel (4, 5) in a rotational direction opposite to the one rotational direction moves the locking member toward the electrically activatable retaining device and into the second position or at least close to the second position such that it may be retained in the second position or attracted into the second position and retained in the second position by supplying electrical power to the electrically activatable retaining device. wherein the at least one locking assembly (8, 9) includes a locking member that is rotatable about a rotational axis between a first position in which the locking member engages the locking track such as to lock the ratchet wheel (4, 5) and the actuation element against rotation in at least one rotational direction and a second position in which rotation of the ratchet wheel (4, 5) and the actuation element in the one rotational direction is allowed, wherein the at least one locking assembly (8, 9) includes: a blasing member applied to the locking member to rotationally bias the locking member into the first position; and an electrically activatable retaining device to retain the locking member in the second position when electrically activated such that tne locking member is prevented from rotating and engaging the ratchet wheel (4, 5) under the force of the biasing member; a blasing member applied to the locking member to rotationally bias the locking member into the first position; and an electrically activatable retaining device to retain the locking member in the second position when electrically activated such that tne locking member is prevented from rotating and engaging the ratchet wheel (4, 5) under the force of the biasing member;