Hi All, I'm having the weirdest time trying to locate a subtle but noticeable squeak which appears to come from my rear whenever I bumps. The size of the bump doesn't really dictate whether or not the squeak will appear, it seems to be fairly consistent that regardless the bump, I'm going to get a squeak. It's odd because I really can't pinpoint where it's coming from. Here's what I've done so far:

1. Replace rear struts with both OEM struts and Third Party Struts (FCS) Squeaks were actually louder with OEM struts than third party, but still there.
2. Replaced swaybar links in both front and rear sections of the car.

I've opened the trunk and got a buddy to help me push down on the cargo area and the squeak doesn't appear, however, once I get on the road and hit any bump, the squeaks appear. Does anyone have any idea of what I could test/try next to try and get rid of this noise?

Check your brake pads and calipers. My rear brake pads finally died under my ownership and when I made a right turn while braking it would squeak. Otherwise, nothing. Inspected pads, and then replaced. No more squeaking. You're probably braking over bumps...check your brakes, squeaking is what they do with issues.

Could be rear wheel bearings too

Maybe the rear knuckle bearings? See this post:

https://www.clublexus.com/forums/rx-...-bearings.html