replying to JohnR66, Art Zendejas wrote:
My 2012 Highlander Hybrid is also making a rattling noise which is coming from
the rear. It began a few weeks ago when I had the scheduled maintenance service.
A knucklehead at the dealer overinflated my tires to 44psi, which is what I
thought caused the rattling. However, after reducing the air pressure to the
appropriate 33 psi, the rattling softened by didn't go away. And now it's back
again but the air pressure is still at 33 psi, so it's not the air pressure. I
also checked the spare tire, thinking it might be loose, but that's not the
problem. At this point, I'm totally mystified by this problem. Have you learned
anything new since your post?