# Lexus Rx450h SUV... rattles only when cold

**URL:** <https://community.cartalk.com/t/lexus-rx450h-suv-rattles-only-when-cold/82708>\
**Category:** Maintenance/Repairs\
**Tags:** doors, noises, lexus\
**Created:** [December 17, 2013, 6:21am UTC](https://community.cartalk.com/t/lexus-rx450h-suv-rattles-only-when-cold/82708 "2013-12-17T06:21:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Captain\_Steve](https://avatars.discourse-cdn.com/v4/letter/c/d6d6ee/32.png) [@Captain\_Steve](https://community.cartalk.com/u/Captain_Steve)\
**Post date:** [December 17, 2013, 6:21am UTC](https://community.cartalk.com/t/lexus-rx450h-suv-rattles-only-when-cold/82708/1 "2013-12-17T06:21:26Z")

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2010 Lexus Rx450h… Rattles in the morning, only when really cold. (Around freezing?).  
Somewhere in or near the passenger side door, or the air vent by that door.  
It gets quiet(er) after warmup.  
Car has been at the dealer for a week… They can’t find it; they want to pack in additional insulation. That hardly sounds like a sound solution. (Oh, sorry!)  
Any help most appreciated.

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**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\
**Post date:** [December 17, 2013, 7:22am UTC](https://community.cartalk.com/t/lexus-rx450h-suv-rattles-only-when-cold/82708/2 "2013-12-17T07:22:35Z")

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Sounds like a heat shield coming loose.

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**Author:** ![jtsanders](https://avatars.discourse-cdn.com/v4/letter/j/c2a13f/32.png) [@jtsanders](https://community.cartalk.com/u/jtsanders)\
**Post date:** [December 17, 2013, 7:27am UTC](https://community.cartalk.com/t/lexus-rx450h-suv-rattles-only-when-cold/82708/3 "2013-12-17T07:27:07Z")

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+1

Or move to SoCal or SoFla.