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RX - 4th Gen (2016-2022) Discussion topics related to the 2016 and up RX350 and RX450h models

rattle underneath

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Old Jan 31, 2016 | 03:21 PM
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Default rattle underneath

hello all,
just got a '16 rx350. great car, but one issue: we've noticed a rattling sound coming from underneath the car either at the rear or the driver's side (depends on where you're sitting). sounds like there's some sort of plastic trim piece loose. i took a look underneath and there is a big plastic skid plate-looking piece underthere, but it seems to have all it's clips and buttons attached--doesn't seem loose. any suggestions? dealership service is closed today, so i figured i'd ask here before taking it in.
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Old Jan 31, 2016 | 04:41 PM
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You might be the first.
Let us know what it is after taking it to the dealer.
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Old Jan 31, 2016 | 08:17 PM
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Originally Posted by bootman
You might be the first.
Let us know what it is after taking it to the dealer.
Shortly after purchasing my 16 RX, I started hearing a rattle which I, and later the service adviser who rode tested the car with me in it, could have sworn came from underneath the car. We were all surprised when the tech found it was the roof rack.

Last edited by riwyle; Jan 31, 2016 at 08:29 PM.
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Old Feb 1, 2016 | 07:45 PM
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Originally Posted by riwyle
Shortly after purchasing my 16 RX, I started hearing a rattle which I, and later the service adviser who rode tested the car with me in it, could have sworn came from underneath the car. We were all surprised when the tech found it was the roof rack.
that is surprising! was it the crossbar position?
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Old Feb 17, 2016 | 11:21 AM
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our rattle was, in fact, from the roof rack. whoever installed the rack forgot one bolt which caused the crossbar to fit loosely in the foot, thus producing the rattling noise we had been hearing.
bad news: the missing bolt cannot be ordered separately. we'll need to replace the entire rack system (not cheap).
good news: the dealership did the right thing and is shipping a new rack to our house.
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Old Feb 17, 2016 | 11:27 AM
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Originally Posted by qiphlow
our rattle was, in fact, from the roof rack. whoever installed the rack forgot one bolt which caused the crossbar to fit loosely in the foot, thus producing the rattling noise we had been hearing.
bad news: the missing bolt cannot be ordered separately. we'll need to replace the entire rack system (not cheap).
good news: the dealership did the right thing and is shipping a new rack to our house.
Good to hear it will all end well. +1 for Lexus customer service.
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Old Feb 17, 2016 | 01:08 PM
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Originally Posted by RXOwner
Good to hear it will all end well. +1 for Lexus customer service.
Indeed! +1 for Lexus CS!
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