Electrical problem
2005 Toyota Sienna 6 cyl Two Wheel Drive Automatic 68000 miles
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The evening after my 2-yr old was climbing in the car,all interior lights / dashoard lights were out. I would have assumed a fuse had gone out if he was not in there earlier. I later learnt that he had turned the "trip odometer" which doubles as a dimmer. So, the solution to no lights inside the Toyota Sienna was to turn the trip odometer. Always google your car model and problem before going to the dealer.