How do you remove a 2001 Lexus RX300 master switch - the driver-side window control panel?

Use a screwdriver with tape over the tip to release the clip under the bottom of the wood trim bezel. Pull out and detach the wiring harness. The switch has a printed circuit board inside. Turn the unit face down if you want to open it up and see the "innards." Remove the 3 larger screws and the top/bottom will then come apart. Remove the 4 smaller screws to access the circuit board. Be careful to not dump out the plastic pistons (look like stubby nails) since they have nothing to hold them in if you tip the button portion over. I switched some of the pistons around to see if that would help my passenger front window ops. Now, it will go down but not up unless you run it all the way down first. Better than "fighting" with it for 10 minutes to get it back up.

Used switches are probably the way to go since a new one from a Lexus dealer is $850 to $900. Add labor and the usual ridiculous shop and paperwork fees, and sales tax, and the Lexus dealer in Davenport, Iowa would have the bill over $1,000. You can likely find a used one for $150 to $250. Just make sure you get a guarantee with it.