Posting on Github Gist due to blog site being broken, normally this post can be found at https://blog.numselli.xyz/?action=view&url=2003-2009-prius-brake-light-fix
- This guide goes over modifying the cars' signaling devices in a way that may not be street-legal in your area, please check your local laws before attempting this modification.
- This is the way it was for me and it might be different for you, double-check the wiring diagrams, voltages, and polarity before making changes.
- I take no responsibility for damaged property or violated laws, do this at your own risk.
My left brake light had intermittent issues, sometimes it would work at full brightness, sometimes dimly, and sometimes not at all. This is a known issue in this generation of the Prius (gen 2). Toyota decided to make the brake light nonuser replaceable and the only way to replace the brake light is by replacing the entire assembly. Repl