Door doesn’t lock automatically after reaching certain speed did beforehand

Have to manually lock each door

Unlocks fine with key remote
Anyone know what the problem is and how do I fix this.

 

It sounds like there's an issue with the central locking system. The fact that the doors unlock fine with the key fob but don’t lock automatically or manually through the fob suggests a potential problem with either the door lock actuators or the central locking control module. The actuators might be partially working, which is why unlocking works but locking doesn’t. Another possibility is that a fuse or relay related to the locking mechanism might have failed, which can prevent the system from properly engaging. Checking the fuses or having the actuators inspected could help identify the issue.