Mine is a metallic sounding squeak. We had our daughter sit in the second row on a drive (she is usually in the front as it is normally just she and I in the vehicle) and scootch the left side a little bit forward as some people mentioned moving one side 1/4” different than the other helped them. When she got out it no longer made noise. If I change how she adjusted it though I have to have her sit in it and adjust it again. If I adjust it without her sitting in it, it does not change this squeak. So odd but I have figured out what stops it for us until there is a fix so while super annoying, I’ve found a way to live with it.