Lexus RX 400h: Problems & Solutions - READ ONLY

202 messages, Last post on Oct 25, 2006 at 6:35 AM

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What is this discussion about? Lexus RX 400h, Hybrid Cars, SUV

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#154 of 202 RX400 slight noise problem by hilandr05 Mar 15, 2006 (5:51 pm)
Only 500 miles on my 400 so I have not gone back to the dealer yet. Before I do, I wanted to check if anyone else has experienced this. At speeds over 30 MPH there is s noise coming from the back that sounds a little like a metallic fluttering. I thought it might be a tag or something loose underneath, but nothing found. With someone in the back seat to help listen, it seems to be narrowed down to coming from under the seat, which would mean possibly something in the battery area. Could it be something with the battery ventilation operation? Anyone else have a similar experience? At speeds above 60 the road noise takes over and most of the time I cannot hear it. So I know, the solution is to drive fast! jc Replies to this message: roycrawf (Mar 20, 2006 11:37 am) mkkid (Mar 22, 2006 11:04 am) lexrexblue (Mar 22, 2006 6:08 pm) andyski (Mar 24, 2006 9:18 am) colomark (Mar 27, 2006 6:46 am) andyski (Mar 27, 2006 9:10 am) and 2 more... hilandr05 (Mar 28, 2006 4:11 am)
#155 of 202 Re: My bad [caps04] by hilandr05 Mar 15, 2006 (5:54 pm)
Replying to: caps04 (Aug 18, 2005 1:12 pm) 500 miles on my 400 averaging 28 MPG
#157 of 202 Re: RX400 slight noise problem [hilandr05] by roycrawf Mar 20, 2006 (11:37 am)
Replying to: hilandr05 (Mar 15, 2006 5:51 pm) On our Highlander the license plate was fluttering. On the RX400 the latches for the self retracting cover were rattling. Took a while to find both. For the latches, just push them down into the latched position when the cover is not installed. Replies to this message: mkkid (Mar 22, 2006 11:04 am) lexrexblue (Mar 22, 2006 6:08 pm)
#159 of 202 Re: RX400 slight noise problem [roycrawf] by mkkid Mar 22, 2006 (11:04 am)
Replying to: roycrawf (Mar 20, 2006 11:37 am) It took my more flexible son contorted in the luggage area of my 400h to find this same rattle. It's exactly what you found and repositioning the latches stopped a noise that drove me nuts for an entire 4 mo vacation trip!! Told my dealer, but they seemed amazed like no one else had ever complained about it. Replies to this message: lexrexblue (Mar 22, 2006 6:08 pm)
#160 of 202 Re: RX400 slight noise problem [mkkid] by lexrexblue Mar 22, 2006 (6:08 pm)
Replying to: mkkid (Mar 22, 2006 11:04 am) The dealer installed some little adhesive sound insulators on my latches. It seems to be working. They heard the sound, too.
#161 of 202 Re: RX400 slight noise problem [hilandr05] by andyski Mar 24, 2006 (9:18 am)
Replying to: hilandr05 (Mar 15, 2006 5:51 pm) Just got my RX back from the dealer yesterday. I brought it in for (among other things) the same issue. Mine turned out to be an exhaust system heat shield under the vehicle, which I suspected originally. That's why you hear it from the battery vents: the soundproofing probably isn't as thick there. They "made an adjustment" and now the sound is gone! Replies to this message: colomark (Mar 27, 2006 6:46 am) andyski (Mar 27, 2006 9:10 am) colomark (Mar 29, 2006 3:37 pm) and 1 more... hilandr05 (Mar 28, 2006 4:11 am)