I’m wondering if anyone else has had a similar issue. I keep getting an error message that my tail light is out. All the tail lights are working. I tried clearing out the dashboard but the message stays. My dad suggested that I take it to autozone and have them clear the dashboard (Idk what they’d do differently from me). I took a quick look at the wiring for all the tail lights and back lights and there’s no glaring problem that the average person can see. None of the bulbs are loose and none of them are dead. I tried replaced 2 of the brake lights since one was dimming to see if that would fix it, but it didn’t. Anyone have any ideas?
ETA: I’ve tried clearing the dashboard several times. The warning is quite annoying since it stays on the dashboard whenever the car is on.

Did you check the brake light operation? There could be a brake light bulb burned out.

I took out all the bulbs and none are burnt out and none look damaged.

The third brake light are LED.

Check the rear side markers.

Do you have the correct bulbs installed for the two outer brake light locations? There should be two filaments in those bulbs... One for tail light mode, and one for brake light mode.

Mine had that problem. It turns out they were led lights and car was supposed to be incandescent ones.

I want yp21 to scan all BCMs for possible fault codes
- B2402
- B2403