I have a 2015 FFH SE 106K miles with a bit of an issue. When I go through the tunnel carwash my trunk opens and my memory seats recall to random positions. I don't have push button start, so it's definitely not a issue with the key fob. The only cause I can think of would be the touchpad, but the touchpad does not control the seat memory settings to my knowledge. I know it's a somewhat common issue for the keypad to cause the trunk to randomly open due to UV and water damage, but I haven't seen any mention of the memory seat issue mine is having. It ONLY happens in the tunnel wash.
Any ideas as to what's causing this issue and how I would approach diagnosis? I know there are CAN BUS modules all over the car, so I'm a bit lost. I'm a bit nervous this could the the start of endless electrical nightmares. Any help is greatly appreciated! If this is a bad sign of expensive and complicated electrical issues, I may end up trading my baby in.
