This article explores the innovative features integrated into modern car door lock systems, focusing on the pivotal role of the door lock actuator. It discusses advancements such as smart keyless entry, remote control operation, integrated security alarms, auto-locking functionality, and customizable settings. These innovations not only enhance security but also significantly improve convenience for drivers and passengers. The evolution of car door lock systems showcases the continual progression of automotive technology to meet the demands of contemporary drivers.