Originally Posted by elclipo
Same here. It is pretty common on TJs and you either live with it or repaint it (properly). Many possible reasons and theories as to what the root cause is.
2x on "it is pretty common". I see it on a lot of the darker and the more translucent colors.
Chrysler had an issue on a non-UV stable primer across most of their car lines. Sun exposure just caused it to fail. I had a 99 Dodge Dakota that the whole paint film on the top surfaces let go after about 5-6 years. Required a full sand to bare metal and repaint. That might be the cause, either way, most folks seem to just live with it....