Passenger Seat Noise...

Okay, so I sat in the passenger seat today, because I let my dad drive the Legend, anyways, it's a GS and has electric seat on the passenger side as well. So I start to move it front/back and it makes a "rubbing" type sound... it only does it half way through the tract, and ONLY in reverse, not forward...it has never done that before

What do you guys think it could be? Sounds like it's going to break when it does it, NOT good lol....

Any tips? I looked at the track as much as I could with a lamp (it's 9PM right now) and didn't see anything stuck in there...



P.S: It's not a rattle, rubbing sound