Creaking when rolling to stop
 

I have an 01 XG350 and recently I have been experiencing some creaking when coming to a stop. Just under 5mph while rolling is the only time it happens. I know its not the brakes, and have had it into a shop for them to tell me they can't locate the exact problem and it sounds like suspension. It also seems to happen only once the cars warmed up, as if I drive right after starting it doesn't do it right away. Any ideas anybody?

I have read that this year and model has been recalled due to frame and control arm rust, could this have anything to do with it?

Thanks in advance!