A vehicle seat assembly comprising a seat bottom, a seat bottom release, a seat back, a seat back release, and a locking assembly. Upon activation of the seat bottom release, the seat bottom can move along a seat bottom travel path in a longitudinal direction of the vehicle to a forward position close to an instrument panel of the vehicle. Upon activation of the seat back release, the seat back can pivot to a forward position close to the seat bottom. The locking assembly can operate to lock the seat bottom, the seat back, or both, in their respective forward positions such that the seat bottom, the seat back, or both, obstruct operational access to a user operational component, such as the steering wheel or glove box door, on the instrument panel.

A vehicle seat assembly comprising a seat bottom, a seat bottom release, a seat back, a seat back release, and a locking assembly. Upon activation of the seat bottom release, the seat bottom can move along a seat bottom travel path in a longitudinal direction of the vehicle to a forward position close to an instrument panel of the vehicle. Upon activation of the seat back release, the seat back can pivot to a forward position close to the seat bottom. The locking assembly can operate to lock the seat bottom, the seat back, or both, in their respective forward positions such that the seat bottom, the seat back, or both, obstruct operational access to a user operational component, such as the steering wheel or glove box door, on the instrument panel.

An automobile antitheft device is equipped with a seat frame installed between upper rails that are slidably supported by lower rails provided on a floor of a vehicle interior respectively, a seat cushion that is supported by the upper rails, that is configured to be able to rise and fall with respect to the upper rails, and that slides forward while falling when a cockpit is locked, and a seat back that is turnably supported by a back side of the seat cushion and that inclines forward when the cockpit is locked. A gap between a lower surface of the seat cushion and the seat frame is set as a gap that does not allow a connector provided below the seat cushion in front of the seat frame to be accessed from behind, when the cockpit is locked.