Originally Posted by CunFFS13
I think this happened cause of the ice/cold but I need to know some more, it doesn't look like a car crash involved either
Do you remember the cracked doors someone posted about it?
It's pretty evident just by the pictures that there was some form of an impact that caused this. The dealership will take one look at it and tell the OP to contact his insurance company.
OP-from what I can gather by searching the product, it looks like that should work fine to repair the area. You may also want to put a layer down over the cracks that extend underneath the lip to stabilize the area. It has a relatively short working time, so don't mix all of it at once.