Brake lights not working?

Tiny
GHOST707
  • MEMBER
  • 1999 PONTIAC GRAND PRIX
  • 3.8L
  • V6
  • TURBO
  • 2WD
  • AUTOMATIC
  • 112,456 MILES
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.
Sunday, June 29th, 2025 AT 7:50 PM

2 Replies

Tiny
MECHTRIX
  • MECHANIC
  • 382 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.
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Sunday, June 29th, 2025 AT 10:20 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 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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Friday, September 5th, 2025 AT 5:11 PM

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