Resolving the same issue on my BMW was covered under warranty, but would have cost $850. That price is par for the course when a luxury can is involved. There are a lot of steps involved in simply getting to the actuator.

OP. hope you are sitting down...

Left front door actuator OEM PN 6904042250 is 350 bucks

here is the procedure looks like a crap ton of fun...


PRECAUTION

NOTICE:
After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (- ) battery terminal notices before proceeding with work See: Service Precautions.

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected See: Testing and Inspection\Repair Instruction - Initialization.

REMOVE FRONT DOOR INSIDE HANDLE BEZEL PLUG See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WITH FRONT DOOR ARMREST BASE PANEL (for Driver Side) See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE POWER WINDOW REGULATOR SWITCH ASSEMBLY WITH FRONT DOOR ARMREST BASE PANEL (for Front Passenger Side) See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE DOOR PULL HANDLE COVER See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE COURTESY LIGHT ASSEMBLY See: Lighting and Horns\Courtesy Lamp\Service and Repair\Door Courtesy Light\Removal
REMOVE FRONT DOOR NO. 1 STIFFENER CUSHION See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE FRONT DOOR TRIM BOARD SUB-ASSEMBLY See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE FRONT DOOR INNER GLASS WEATHERSTRIP See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE DOOR SIDE AIRBAG SENSOR (w/ Occupant Classification System) See: Restraints and Safety Systems\Air Bag Systems\Impact Sensor\Service and Repair\Side Airbag Sensor (for Front Side)\Removal
REMOVE FRONT DOOR ARMREST SET BRACKET See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE FRONT DOOR SERVICE HOLE COVER See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE FRONT DOOR GLASS SUB-ASSEMBLY See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE FRONT DOOR GLASS RUN See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE FRONT DOOR REAR LOWER FRAME SUB-ASSEMBLY See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE FRONT DOOR OUTSIDE HANDLE COVER WITH LOCK CYLINDER ASSEMBLY (for Driver Side) See: Doors, Hood and Trunk\Front Door\Service and Repair\Disassembly
REMOVE FRONT DOOR LOCK ASSEMBLY

Japanese Auto Care in Arlington

Anyone know a decent mechanic that works on a Lexus?

The driver's side door no longer locks or unlocks unless, I manually lock/unlock it. Googled and turns out it's a common problem with my model/year vehicle. Its 2015 ES350 with the actuator. Called the dealership to get an idea of how much the cost would be and they quoted $700. I can't imagine it's going to be that expensive.

I'm in the Reston/Herndon area....