Brake Lights

2004 CHEVROLET TRAILBLAZER
Avatar
ILLGRAMMATIX
  • MEMBER
  • 1 POST
All of the lights on my trailblazer seem to work except the brake lights... I've tried changing bulbs... haven't tried the fuse yet... but from reading some other similar posts I'm thinking it may be the brake switch... Is there anything else besides the fuse, bulbs, and brake switch that would prevent my brake lights from working? Ironically, the top brake light on the rear door (storage area) of the truck works.
Apr 12, 2007 at 1:42 PM
Advertisement
Avatar
BOOTDOG
  • ✓ASE Certified Mechanic
  • 665 POSTS
  • ASE Certified Mechanic
check those you mentioned and also check for loose connections, bad grounds and possibly broken wires.
Feb 27, 2021 at 12:34 PM
Avatar
KGOWER
  • MEMBER
  • 4 POSTS
I know there is a recall on the taillight modules for the 2003 I had the same problem. Check the recalls on the 2004 the modules are only about $30 from the dealership they are a dealer part only
Feb 27, 2021 at 12:34 PM
Avatar
TROMPOMIX
  • MEMBER
  • 1 POST
is the fuse located under the rear seat on driver side number 34 I just replaced and my brake lights is working fine now
Feb 27, 2021 at 12:34 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.