My left rear brake and turn signals stopped working. Then, the right signal top bulb only was out. Always had parking lights. Did a gazillion searches and replaced all bulbs for good measure, including fronts even though they worked. Then, I replaced all rear light sockets, including license bulbs. Then, the searches let me to replace the multifunction switch. Out of ideas and searches ran short. Then, lost all brake lights and turns out back so it had become dangerous. My gut said BCM from the various searches. Mechanic did reflashes and got left side working briefly, then all quit indefinitely. BCM failure. After 4 hours and some $, I am back on the road feeling complete again. While he was in there, he also repaired the blend door actuator that just started acting up.

All is well and I hope this may help at least one of you.

Scott

 

Good post, thanks!