2012 Yaris Manual Trans Pressure Vent

[chefk85]

I bought my yaris 4 days ago with 38k miles on it for 8500 bucks. Its the SE 4door. I noticed yesterday a small puddle of what feels and smells like gear lube underneath it and upon further inspection it looks as if its coming from the bottom of the trans housing where it meets clutch housing. I know these have a vent that relieves trans pressures that can clog. Ive found the vent. How and should I remove it to clean it? Or does anyone have any other ideas what could be causing my leak? The car was bought in july 2012 so I think if manufacturer warranty transfers it should be under warranty until july 2017. Right?? Thanks in advance for any help you can give me. I'm fairly mechanically savvy having always owned old cars and trucks so getting my hands dirty isn't an issue for me.

Thanks,
Kellen