All 3 brake lights & Turn signals don't work.

Hello, This is Aaron from Grand Pointe Automotive. We specialize in auto electrical diagnostics and repair. If you would like I can schedule you an appointment to have one of our techs take a look at the lighting issue for you. The rear circuit boards are definitely a common problem on these vehicles but it sounds like you have already replaced them. We will need to test the circuit to find the problem. If you have any questions or would like to schedule an appointment, give us a call at 810-603-1900. We have a large waiting room with TV and WIFI if you would like to wait or we have a free shuttle service that can take you home and pick you up when the car is done. Thanks, Aaron Klosterman Grand Pointe Automotive