Invisible HUD - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 05-08-2004, 06:33 PM   #1
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Default Invisible HUD

At night I can see it fine, but during the day I can barely make out the numbers even when I crank it up. At night the brightness is just like I remembered it when it DID work properly. I rememeber someone saying something a long time ago about checking proper connection, eh???
Where is it located? What color? How?

Anyone solve this problem before?
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Old 05-09-2004, 04:29 PM   #2
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Anyone?
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Old 05-09-2004, 04:49 PM   #3
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There'* a white wire from the HUD switch to the HUD, check it out. If it checks out fine, Check the rheostat inside the HUD switch for an open...

Pull out the switch, turn the car on, and check the voltage on the white wire, It ought. to be nice and smooth from battery to 0.

I don't see any connection with the only at night part unless the brown wire from your headlight switch is shorted to power... Maybe try checking fuse 21...
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Old 05-09-2004, 10:59 PM   #4
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I think it'* fairly normal in the bright sunny days this time of the year when the sun is high to barely see the HUD. Mine has always been like that since new. It'* even worse if you are wearing shades.

No problem a night or on cloudy days.
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Old 05-09-2004, 11:11 PM   #5
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No, this is bad. It used to be much brighter during the daytime.
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Old 05-09-2004, 11:27 PM   #6
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I know this is a simple question but do you set your headlights to auto on or manual?
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Old 05-10-2004, 12:59 AM   #7
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Does your HUD dim when you turn on the headlights or not?
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Old 05-12-2004, 04:07 AM   #8
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Not that I can notice Fuddy, I'll double check tomarrow.
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