Sorry it has been so long to get back to you with an answer. MY answer is no. I have not figure out the lighting problem out when towing. Family heath problems We just stopped traveling in the motor home and therefore did not need to tow my 2015 Acadia. Although it has been used a lot to transport my married daughter to the medical center in Houston. Glade to report she is doing a lot better and that my wife and I (good Lord willing ) we'll be headed out in the motor home again soon. So I have been getting the motor home and the Acadia ready. How about you bluefish, have you done anything about the problem ?