2010 Lexus RX 450h - Rattles/Squeaks?

[RXboii_786]

Hi all,

I just drove my dad's RX 450h and noticed quite a few squeaks & rattles over uneven/bumpy roads. It has done 135k miles so not too surprising lol, although it means the ride isn't as refined as a lexus should be.

There's this really persistent squeak (kind of like a bird chirping) over the tiniest of bumps, and it's quite annoying.  It's coming from the front, i believe the driver side. Could it be the suspension? I read on another Lexus forum to spray lots of grease/lubricant over the suspension.

Has anyone else had a similar experience?

thanks

[Spottedlaurel]

I'm inclined to agree the ride isn't quite as smooth as expected, and that's from my fairly low mileage example. I also have a 1992 LS400 and that is definitely better.

Tyres can of course make a difference, it certainly improved when I recently changed mine.

I sometimes get a squeak from a front brake on mine, the dealership say it's because of lipped discs and they could be skimmed, but I wonder if it's the caliper sliders needing to be cleaned-up a bit.

The boot area and tailgate can be a source of noises. Make sure the centre rear seat is properly clicked into place. I put some self-adhesive felt strip either side of the tailgate catch on mine where I could see some plastic components were rubbing.

There are lots of cubby holes and pockets where loose items can rattle, make sure the noises aren't coming from something rattling around there before worrying too much!

[Spock66]

10 hours ago, RXboii_786 said:

Could it be the suspension? I read on another Lexus forum to spray lots of grease/lubricant over the suspension.

Suspension would be a good place to start looking, but you really need the car up on a ramp so you can have a good inspection and check for excess play etc.