What are the reasons why the Jetta door lock cannot be opened from the outside?

[IsabellaLynn]

Here are the specific reasons why the Jetta door lock cannot be opened from the outside: 1. Central Locking System Activated: The central locking system automatically engages when the vehicle speed exceeds 15 km/h. Its purpose is to prevent passengers from accidentally opening the doors while the vehicle is in motion, thereby avoiding potential accidents. 2. Child Safety Lock: If the rear doors cannot be opened even when the central locking system is unlocked, it indicates that the child safety lock is engaged. 3. Door Lock Malfunction: Issues may arise from the remote control or RF transmitter, or from the main unit or door control module. First, check if the remote control has sufficient battery power. If the battery is not the issue, test whether other buttons on the remote control function properly. If other buttons work, the problem likely lies with the door control module.