I'm guessing that you car either has a spoiler/wing on the trunk lid, or it used to.

On Hondas they will wire up the brake lights on the spoiler instead of the third brake light behind the rear glass, whether it's installed at the factory or the dealership. No reason for both.

If you do have a spoiler, I'd check to make sure the lights (or light) on it are working properly, otherwise I don't know why you would suddenly be getting a bad-bulb warning for the 3rd brake light.



Is it just the red brake warning lamp that you're talking about? The one that comes on when you have the e-brake pulled? If so, you might have a problem with your brakes. First thing I would do is check the fluid level in the reservoir(assuming the e-brake isn't engaged).