I just replaced my left side taillight housing. All of the lights (brake, backup, running, turn) work fine. However, when I step on the brake the bulb failure indicator on the instrument panel lights up. When I take my foot off the brake the light goes out. Anyone have an idea what might be going on?

 

Sounds like you have a brake light out somewhere. You have to back up to something that would allow you to see the reflection like a store front window. You can also put a broom or something on the brake pedal and go behind the car and look.