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Headlight indicator

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Headlight indicator

Posted: 3/26/26 7:20pmMessage 1 of 6
b
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Newcastle, WA - USA
Joined: 7/11/2024
Posts: 6
Vette(s): 1978 Silver Anniversary Edition, L-82 4sp
Minor issue but nagging just the same - I rarely drive my '78 at night, but when the headlights are on low beam, the high beam indicator comes on and vice-versa. Anybody have any suggestions how to correct this?
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Re: Headlight indicator

Posted: 3/26/26 9:19pmMessage 2 of 6
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22748
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Other than an issue with the dimmer switch itself, I would suspect the bulbs were plugged in incorrectly....plugs swapped.

Joel Adams
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Re: Headlight indicator

Posted: 3/26/26 11:33pmMessage 3 of 6
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Burke, VT - USA
Joined: 1/23/2002
Posts: 7769
Vette(s):
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Adding on to Joel's reply - check to see which headlight bulbs are lit up when in low beam mode - only the outside bulbs should be on. I don't know all the wiring in the headlight circuitry but guessing there's also a possibility that wires to the headlight dimmer switch are plugged in incorrectly.

Jim Olson 

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Re: Headlight indicator

Posted: 3/28/26 1:33pmMessage 4 of 6
b
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Newcastle, WA - USA
Joined: 7/11/2024
Posts: 6
Vette(s): 1978 Silver Anniversary Edition, L-82 4sp
Headlights light up correctly. I need to do some more digging. Thanks--
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Re: Headlight indicator

Posted: 3/28/26 11:03pmMessage 5 of 6
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Cana, VA - USA
Joined: 7/3/2016
Posts: 399
Vette(s): 1975 Stingray 71 350 engine Flat top pistons Sniper fuel injection Hyperspark ignition Vintage Air air conditioning Borgeson power steering box
If I remember correctly (more than a day and the memory fades) my 75 did the same thing. The fix must not have been very painful otherwise I'd have remembered what I did to fix it.

   

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Re: Headlight indicator

Posted: 3/29/26 12:12pmMessage 6 of 6
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Grapevine, TX - USA
Joined: 8/26/2006
Posts: 1588
Vette(s): 1972 LT-1 convertible with factory air. 2017 Black Rose Grand Sport M7 convertible.
Don't the headlight bulbs have different plug configurations? 3 prong vs 2 prong.

   

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