A rather comprehensive set of instructions for removal of the door panel can be found at.
How to remove read door panel 2000 lexus rx300.
Using a screw driver remove the screws and the clips in the panel of the door and remove the panel gently.
Remember to remove any wire connectors to the switches.
Use a small flat head screwdriver to pry the switches from the door.
The switches for the locks and windows.
Open the door completely.
Same for the rear.
Use a very small flat head screwdriver to pry the plastic trim away from the door handle.
Pry at the top and at.
Simply remove any exposed screws and using a tool from any automotive store looks like a flattened out screwdriver with a slot on the end and use it to pop the panel off.