Just to follow up on this. I have resolved our issue. Our inner most LED strip on the passenger taillight was always lit up bright like the brake was pressed while the others were in parking light mode. I had the SSM update done to our BMCB which did nothing in our case. I purchased a 72...
For what it's worth I paid $160 to have the BCMB reflashed in my 2015 today and it solved nothing. The left vertical bar on the passenger tail light is still bright like the brake is applied. Next up is a new tail light I guess. Battery is also brand new. $500 for a tail light assembly...
Does anyone TRULY understand this fault and isn’t guessing at fixes? Our 2015 just started doing this with the passenger tail light. With the car off the left most bar is bright like the brake pedal is depressed. The right most bar is out and the turn signal only lights both left most bars and...