My 01 LX had a bunch of switch lights that weren't working so I ordered some T3 and T4.2 bulbs. Getting original bulbs from Lexus or Toyota proved fruitless and very expensive. I replaced the outer mirror switch bulb (T4.2), rear quarter window bulb (T3), hazard bulb and 4x4 bulb (T4.2), PWR & 2nd bulbs (T3). I used the green condoms from the old bulbs on the new ones. Everything is now lit up for the 1st time in I don't know how long.
I also replaced the halogen headlights with white, LED lamps. These are awesome! Can't believe that I can see the road at night now. The yellow halogen bulbs were pretty close to worthless for night time driving. Found that the left headlight needed horizontal adjustment, so took care of that as well. I may go back and rewire the lamps to minimize wiring inside the dust cap. I don't want to risk the heat of the LED melting wiring. Not sure if this is an issue or not, but it is a point of concern.