An exemplary access control device includes a locking member having a locked position and an unlocked position; an electronic actuator operably connected with the locking member; a switch connected between the electronic actuator and a power supply, the switch having a closed state in which the electronic actuator is connected to the power supply and is operable to maintain the locking member in the unlocked position, the switch having an open state in which the electronic actuator is disconnected from the power supply; and a manual actuator operable to transition the switch between the open state and the closed state.

A power latch assembly for a vehicle door of a motor vehicle includes a ratchet configured for movement between striker capture and striker release positions, wherein the ratchet is biased toward the striker release position, and a pawl configured for movement between a ratchet holding position, whereat the pawl maintains the ratchet in the striker capture position, and a ratchet releasing position, whereat the pawl releases the ratchet to the striker release position. A powered actuator is energizable to move the pawl from the ratchet holding position to the ratchet releasing position, wherein a multistage reduction mechanism operably connects an output of the powered actuator to the pawl to provide a first release torque on pawl during normal use and a greater second release torque on pawl during emergency use.

A latch assembly for a motor vehicle swing door arranged for movement between open and closed positions includes a frame plate and a ratchet operably coupled to the frame plate for movement between a striker capture position and a striker release position. A release chain component is configured for release from a ratchet holding position, whereat the ratchet is maintained in the striker capture position to maintain the vehicle swing door in the closed position, to a ratchet releasing position, whereat the ratchet is moved to the striker release position to allow the vehicle swing door to be moved to the open position. A mechanical feature operably coupled to the frame plate is configured to be deformed by a force in a crash condition to prevent inadvertent movement of the release chain component from the ratchet holding position to the ratchet releasing position.