Adjustable vehicle seat

The invention relates to an adjustable vehicle seat (1), comprising a seat part (2) and a backrest (3) which is pivotable relative to the seat part (2) about a backrest pivot axis (6) by means of at least one backrest adjustment fitting (5) and is lockable in a plurality of angular positions, and at least one locking device (90) by means of which the seat part (2) is lockable to a vehicle structure. An unlocking lever (30) is provided here, said unlocking lever transmitting a movement introduced for unlocking purposes to the at least one locking device (90), wherein a first interlock element (54) is provided, said interlock element, when the backrest adjustment fitting (5) is unlocked, preventing a movement of the unlocking lever (30) for unlocking the locking device (90) and which, when the locking device (90) is unlocked, preventing an unlocking of the backrest adjustment fitting (5), wherein the first interlock element (54) is designed as a blocking lever (54) which is connected to a transmission rod (60) for rotation therewith, wherein, when the transmission rod (60) rotates, the backrest adjustment fitting (5) is unlocked, and wherein the unlocking lever (30) has a blocking element (36, 37) or interacts with a blocking element (36, 37) which, when the locking device (90) is unlocked, prevents a movement of the blocking lever (54) for unlocking the backrest adjustment fitting (5).