2012 Prius v- when I roll up (or down) the dimmer dial (with headlights on) nothing happens. I noticed last night when driving that my touchscreen kind of lit up a couple notches on its own. I messed with the dial and it worked after a few rolls up and down. Today though, nothing. However the light on the “power” button does +/- when dialing up and down. Just not the instrument panel or touchscreen. I hope I explained that well enough, sorry from the noob! thanks for any input.
Edit: Just thinking about this some more: I checked this afternoon when daylight. It was still mostly daylight when I noticed yesterday as well (but raining). Could the contrast on the instrument panel not be noticeable until dark out?
Not sure about it, but if it is still light out and you want to test darkness, you could cover up the little sensor far up on the dash crack by the windshield?
Sweet. I dont think I would have known that ever, except I have finally cleaned out my garage to be able to park my cars in lol, and backing in my Gen3 I notice when it hits the threshold of that sensor it auto dims And pulling out it gets bright.
