2002 Jeep Grand Cherokee - Brake lights not working properly. With lights off Driver side no brake light when brake is engaged. With lights on and all rear lights on, engage brake - no driver brake light and passenger side lights go out completely. Top brake light works great and all turn signal lights work. Is it a ground short when brake is engaged?

The problem is that the tail lights, light bulbs get too hot and melt the plastic where the bulb socket goes into the lens assembly. On the lens assembly you will see one to three metal tabs where the socket fits into. Lift up the tab a little bit with a screw driver and place a small amount of either metal or plastic underneath the tab so it will get a good connection. It will fix the problem.

You need to recheck the ground wire for each tail light,but it sounds like your losing ground

I have a Jeep Cherokee 2002 my right brake light works, but not the other. If I have my headlights on. I have no taillights at all. Please help