NHTSA Complaint #11431546 — 2021 RAM 3500

The tailgate opened without command. Was pulling a 5th wheel at the time and when the first turn onto the hwy the tailgate contacted the trailer and caused the stability light to illuminate on the warning panel. This is a safety hazard for obvious load securing reasons and also create a hazard on hwy while trying to stop any further damage to trailer. The manufacture sent a representative to inspect the tailgate and determined that it did not open by itself. Rather absurd since that particular 5th wheel cant be hooked up without closing the tail gate. I submit this report since the particular combination of options on my truck may have caused the uncommanded tailgate opening. I am sure that other reports will start to come in on this problem.