Brake lights and rear turn signals not working

Tiny
JUSTIN MITCHELL
  • MEMBER
  • 2012 BUICK ENCLAVE
  • 70,000 MILES
Rear hazards not working. Tail lights come on, but that's it. Third brake light working fine.
Monday, July 15th, 2019 AT 5:13 PM

2 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

This could be a problem with your vehicle's Body Control Module (BCM). In the diagrams down below I have included your vehicle's exterior lighting wiring diagram as well as the location and removal and installation of the BCM as well as reprogramming directions in the diagrams down below. Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Tuesday, July 16th, 2019 AT 12:52 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
I would start by checking he fuse on the BCM
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Saturday, September 6th, 2025 AT 5:21 PM

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