Auto-dim on display not working. - Scion IA Forum
 
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post #1 of 5 (permalink) Old 06-17-2019, 10:38 AM Thread Starter
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Question Auto-dim on display not working.

I bought a 2016 scion iA, still under warranty. The display screen's brightness can be set to high or dim, but the auto-dim at night does not work. I was told that a sensor on the dash should control that. On the right side of the dash I see a plastic dome that seems to be a cap of some sort, not a sensor.

Was the auto-dim function on this model an option, and could I make it work by pulling this cap and installing a sensor? If so, what would be the part number for that sensor? Thanks for any help.
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post #2 of 5 (permalink) Old 06-20-2019, 08:40 PM
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Quote:
Originally Posted by Timothy Buchanan View Post
I bought a 2016 scion iA, still under warranty. The display screen's brightness can be set to high or dim, but the auto-dim at night does not work. I was told that a sensor on the dash should control that. On the right side of the dash I see a plastic dome that seems to be a cap of some sort, not a sensor.

Was the auto-dim function on this model an option, and could I make it work by pulling this cap and installing a sensor? If so, what would be the part number for that sensor? Thanks for any help.
Hey Tim,

Are you talking about the Instrument cluster

if Instrument cluster (tachometer, fuel gauge, speedometer etc..)

I don't think their is a auto-dim feature. But you can adjust the Dashboard illumination knob on the top right corner of the instrument cluster. (Turn left or right bright/dim respectively).

With headlight switch off, adjust dashboard illumination knob.
With headlight switch on (preferably at night) adjust dashboard illumination knob.

see video (https://www.capomazda.com/blog/how-t...hboard-lights/)
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post #3 of 5 (permalink) Old 08-18-2019, 09:05 PM
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there is no auto dim just dim it by turning it
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post #4 of 5 (permalink) Old 08-19-2019, 03:38 PM
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I tried fiddling around with that, too (a little to much), and didn't get anywhere with it. However, if you have Android Auto installed, you can set the app on your phone to automatically dim the head unit. The instrument cluster won't dim, but your head unit will. If you have Developer Mode enabled, you can select Developer Settings from the app's main settings menu, then select Day/Night, then Phone-controlled as the preferred option. From then on, your phone will automatically dim your screen.
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post #5 of 5 (permalink) Old 08-22-2019, 10:08 PM
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Arrow Auto-dim on display not working.

Quote:
Originally Posted by will4958 View Post
I tried fiddling around with that, too (a little to much), and didn't get anywhere with it. However, if you have Android Auto installed, you can set the app on your phone to automatically dim the head unit. The instrument cluster won't dim, but your head unit will. If you have Developer Mode enabled, you can select Developer Settings from the app's main settings menu, then select Day/Night, then Phone-controlled as the preferred option. From then on, your phone will automatically dim your screen.
You have Android Auto installed? Is that from some sort of hack?

Yeah I don't believe there's an "auto"-dim feature for both instrument cluster and infotainment screen. I do notice if I turn the instrument light adjustment / trip odometer reset stick knob to the right-most during the night with the headlight on, both instrument cluster and infotainment screen become the brightest mode or day-time mode which will be too bright for night-time driving. Just can't turn past that little resistance when adjusting the instrument cluster and infotainment screen brightness with that stick knob for night-time driving with headlight on.
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