Same here just took a trip from Ft.Benning Fa to Savannah had the the same issue had to have my 2017 Terrain Denali. Had to jump it twice going and used a jump box twice on return. I have no wobble never pulled #16 fuse towed for a year did have a smell weather I was towing or not eventually it went away. I guess if it isn’t broke don’t fix it. I will definitely try the ground from RV plug side Terrain negative battery terminal.
Thanks
SFC(Ret) F.D. Mitchell
Gulf War Vet 90-91
24ID TF 2-4Cav D-4Cav
