A locking system for a vehicle seat, for locking to a vehicle structure of a vehicle, has a backrest able to be folded from a normal position into a folded position, a locking device located on the backrest, and a catch that can be pivoted between a locking position and an unlocking position and can be pivotally driven by both a manually-pivotable unlocking element and an actuation device arranged on the vehicle structure. When the backrest is in the normal position, a counter element is locked to the locking device by the catch. The actuation device has a control lever that can be moved between a locking position and an unlocking position.