Sounds like it's not your bulb that is bad. It may be your brake switch isn't working.
How do you replace brake lights
The only thing common to all those lights (but not to the center brake light) is the hazard switch. I'd check that next. On my 96 Century the hazards override the signals and brake lights meaning that the signals and brake lights must be wired into the hazard switch somehow.
Check your tow bar and trailer brake light wiring. It may be grounded. I had this problem with my 92 roadmaster wagon. Tom.
I have 05 with no brake lights
Buy the Chiltons or Haynes manual. It will walk you through the process.
I have a chev cavlier 1995 and the running lights do no work---on the dash the green light keeps blinking----what should I do?
Brake lights
It depends on the vehicle but in general you would have one fuse for the signals and one fuse for the brake lights.
Blown fuse
Fuse 7 controls the brake lights. It should be a red 10amp fuse.
Could be the brake light switch or fuse.
i have tail lights but do not have brake lights nor do i have turn signals. i have replaced brake switch and all bulbs