So when the road gets especially rough I hear a clunk sound from the sunroof area. I dried to push up on the sun roof and move it around to duplicate the sound and target the problem area but after a month an a half I have been unable to find a solution. On my old ISF I was able to resolve the clunking sound by using rubber safe grease on the rubber seal area around the glass. I tried it on the RCF but it’s still there so I can rule this out. Does anyone have any issues with their sunroof? If you had the dealer fix it what did they do?

 

My guess is, it is worn out seal(s). The dealership would probably replace the seals.

 

Yeah...was driving it around today and I think I’ll just have to suck it up and buy the weatherstripping for $50 and just do it myself.

saw this GSF owner on YouTube and it seems doable:

 

Found a thread I think he is referring to as the source for this fix. Check this out. Lots of pictures

https://www.clublexus.com/forums/gs-...s-the-fix.html