Question about 1985 Buick Skylark

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No brake lights but 3rd light works all fuses are good

No brake lights but 3rd brake light works all fuses are good

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  • hrtbrkr669 Apr 16, 2009

    I have the same problem, brake lights don't work but 3rd one will. I have checked all fuses and bulbs and they are good. My hazard and turn signals are also out. Any information will be a big help.

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It's still worth checking/ replacing the two rear bulbs ,, Because the 3rd brake bulb is usuall a different type of bulb compared to the two lamps in the rear panel . different life span and less prone to oherheating and shortening life span ob bulb. Good Luck

Posted on Apr 11, 2010

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Sounds like a broken wire somewhere.
Since the middle brake light works I would suspect it is somewhere in the trunk or close to the back seat.
Buy or make a tester. A 12v light with a clip on one wire that you clip to a good ground on the car the other wire with a sharp point. Turn the turn signals on then poke wire to rear lights until tester lights. When tester lights you know the break is somewhere inbetween the tester and the brake lights.

Hope this helps.

Stan

Posted on Apr 18, 2009

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Posted on Jan 02, 2017

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SOURCE: 95' Buick regal, 3rd brake light works, tail

I dont have a diagram but the brake light switch has to feed the turn signal switch, Either that wire has a bad connection, or the turn signal switch is bad. Jiggle the turn signal lever and see if the brake lights try to work.

Posted on Nov 25, 2009

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