My LS430 driver side door cannot be lock or unlock with the remote control key, but all other doors worked. Any help.

 

My LS430 had the same issue and got it fixed last week by dealer under my extended warranty – Replaced door latch actuator (~$500)

A member posted a related DIY can be found from the URL below. Hope it helps.

https://www.clublexus.com/forums/ls4...-tutorial.html

 

Thanks a lot. I will try this.