My 08 G35x sunroof is making grinding noise only when I tilt it up, coming back down and sliding operations are fine. Anyone can help me ? thanks

 

If not under warranty you might find something in this FSM chapter.

 

Mine was making that noise as well.

 

Hey guys sorry for bringing back an old thread, a quick google search only gave me this thread that is relevant. I seem to be having the exact same issue that started yesterday. How did you guys fix it? Is spraying some lubricant sufficient?