this sounds to me like TSB 13-9-3. I guess is that the noise is because of lack of lubrication of LCA. Lubricating the LCA bushing helps indeed. Most of forum members indicate that the sound comes when the weather is warm. The latest TSB adds heat shield to protect LCA bushing. All of these info lead me to believe that the bushing dries out due to warm weather and heat rejected from engine.
My conculsion is if the vehicle is in warranty, the latest TSB will help. If the vehicle is out of warranty, just lubricate the bushing frequently will get the noise out.
Just 2 cents.