Brake lights not working?

1999 PONTIAC GRAND PRIX
112,456 MILES • 3.8L • V6 • TURBO • 2WD • AUTOMATIC
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GHOST707
  • MEMBER
  • 2 POSTS
Hi, so I have the car listed above GTP. So, I got the car, and I replaced the brake light switch and replaced all the fuses and just replaced the bulbs on the brake lights and the two lower ones in the main headlight will not kick on but the one in the top window kicks on. I cannot figure out for the life of me why it will not they won't work anybody have any answers and I can't find where the ground is at on the taillights.
Jun 29, 2025 at 12:50 PM
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MECHTRIX
  • ✓Experienced Mechanic
  • 575 POSTS
I'd check the ground circuits and make sure all connections are good. i have a feeling the problem might be there. good luck.
Jun 29, 2025 at 3:20 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,649 POSTS
I have seen the turn signal flasher cause this issue. Here is the location so you can swap it out.
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Sep 5, 2025 at 10:11 AM
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