mystery fuel hose disconnected

[Daniella]

behind the gas tank door is a disconnected small hose. it looks like it was ripped off not sure where the other end of the hose should go. i have no leaks or problems, I just want to fix it. its for a 02 yukon 5.3

 

[bret04yuk]

tank vent?
overflow dump?
spill pipe?

 

[big_b_in_PA]

Autoride dump hose, if you have autoride.