I don't remember which Harley forum I posted this in reguards to having to slam the door.
When I first got my TG I had to slam the door also and then I remembered back when I owned 2 '68 VW bugs and you had to slam the doors to close them because they were almost air tight or you had to leave the window open a crack. Then another VW owner told me to quickly close the door, but stop just short of closing and then just gently push the door the rest of the way - BINGO - worked like a charm. So I tried it with the trunk door and works perfectly just like the VW door. Now I don't have to slam the door anymore and possibly break anything.
I have a 2012 so I don't know if mine is also plastic or if H-D made a change on the 2012.
When I first got my TG I had to slam the door also and then I remembered back when I owned 2 '68 VW bugs and you had to slam the doors to close them because they were almost air tight or you had to leave the window open a crack. Then another VW owner told me to quickly close the door, but stop just short of closing and then just gently push the door the rest of the way - BINGO - worked like a charm. So I tried it with the trunk door and works perfectly just like the VW door. Now I don't have to slam the door anymore and possibly break anything.
I have a 2012 so I don't know if mine is also plastic or if H-D made a change on the 2012.