No brake lights two main bottom?

1997 GMC JIMMY
256,000 MILES • 4.3L • V6 • 2WD • AUTOMATIC
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JKBILBREY
For some reason the top brake light on the top of the hatch comes on, but the two main bottom brake lights do not come on.
Dec 29, 2024 at 8:00 PM
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STRAILER
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  • ASE Certified Mechanic
I would cycle the hazard switch on and off about 10 times to see if the contacts clean up, if not the turn signal switch will need to be replaced. Here is how to fix the problem. Check out the images (below). Please let us know what happens.
Dec 30, 2024 at 11:15 AM
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JKBILBREY
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Thank you for this advice, this fixed it! I greatly appreciate this.
Dec 30, 2024 at 4:13 PM
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STRAILER
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  • ASE Certified Mechanic
You are welcome! Did you have to replace the switch or did you get away with just cycling the hazard switch? Happy new year!
Dec 31, 2024 at 11:28 AM
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JKBILBREY
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I had to cycle Hazard switch quite a few times. I've had to do it again since then so it might be time for a new switch.
Dec 31, 2024 at 6:54 PM
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STRAILER
  • ASE Certified Mechanic
  • 54,503 POSTS
  • ASE Certified Mechanic
Yep, I think you are correct, good job finding the problem.
Jan 1, 2025 at 10:38 AM
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