Well the new 4Lo switch I installed in June has already failed, looks like I'm going to a manual switch so I don't have to deal with this anymore. Very frustrating that Toyota hasn't replaced that switch for something reliable after 8 years of failures (thread started in 2007).
Well at least you can do all of the wiring from inside. No need to drop underneath.. I haven't had this issue yet on my 07, knock on wood.
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