Originally Posted by mshao825
There are 2 bulbs in each brake light, so 4 total (2 on the driver's side, 2 on the passenger's side). It's possible that one of the 2 bulbs on the left brake light is dying/dead, but you just didn't notice it when you looked because the other one was still properly lit. See if that's the case, because I had the same experience.
wouldn't one light be brighter than the other?