Rear View mirror Vibration - issue found - Lexus Engineers do not have a fix - Yet
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Rear View mirror Vibration - issue found - Lexus Engineers do not have a fix - Yet
My 2008 IS250 is having problems which nobody has been able to solve. My local dealer, Park Place of Lexus applied the Lexus Service bulletin “L-SB-0072-09” but with no success. After looking into it personally with more interest, it appears that this is as a result of a design flaw by Lexus. Please find below the problem and the design flaw.
The Problem:
Rearview mirror vibrates under the following conditions:
1. Music volume is 20 or higher
2. Moon-roof is open and car is traveling at more than 40mph. The vibrations are worse when going up or down the freeway ramps, or if it is windy outside.
The Design Flaw:
The design flaw is in two stages:
1. The roof is not adequately damped. This causes the vibration from the subwoofer to travel to the windshield and consequently the rear view mirror which is mounted on the windshield. This is easily demonstrated by thumping on the roof with my palm and observing the rear view mirror vibrate.
2. The moon-roof wind deflector is inadequate and it does not spoil the wind flow over the opening. The result is the wind is flowing straight into the gap between the roof and the moon-roof glass when the moon is completely open. This causes a sever wind buffeting phenomenon.
For comparison, Here is a 2001 RX300 which does not have the rearview mirror vibration issue, especially when the moon-roof is open. As you can see the wind deflector actually deflects the wind away from the gap between the moon-roof glass and the roof itself.
I sent this information over to Lexus Customer Service, which in turn apparently sent it to their engineers. However, they came back saying that they do not have a fix for this.
The Problem:
Rearview mirror vibrates under the following conditions:
1. Music volume is 20 or higher
2. Moon-roof is open and car is traveling at more than 40mph. The vibrations are worse when going up or down the freeway ramps, or if it is windy outside.
The Design Flaw:
The design flaw is in two stages:
1. The roof is not adequately damped. This causes the vibration from the subwoofer to travel to the windshield and consequently the rear view mirror which is mounted on the windshield. This is easily demonstrated by thumping on the roof with my palm and observing the rear view mirror vibrate.
2. The moon-roof wind deflector is inadequate and it does not spoil the wind flow over the opening. The result is the wind is flowing straight into the gap between the roof and the moon-roof glass when the moon is completely open. This causes a sever wind buffeting phenomenon.
For comparison, Here is a 2001 RX300 which does not have the rearview mirror vibration issue, especially when the moon-roof is open. As you can see the wind deflector actually deflects the wind away from the gap between the moon-roof glass and the roof itself.
I sent this information over to Lexus Customer Service, which in turn apparently sent it to their engineers. However, they came back saying that they do not have a fix for this.
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I'd rather fight with Lexus and get money back on the moonroof since it is practically unusable because of this.
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#9
I just had my rearview replaced on my 08 350 for a slight vibration and what the dealer called "marbling" (bunch of black spots starting to appear under the glass). As part of the service bulletin they removed my 08 mirror and put in the new 2011 version... or I guess its the 09 version? I'm not sure if they're the same but it looks like the one in my mom's 2010 250. I actually didn't want the newer mirror but my SA told me it was the only way to stop the vibrating/marbling and required per the service bulletin.
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see above.
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has anyone every heard of the sunroof glass breaking/cracking from all the vibration going on? i always close my roof when getting on the highway and kinda wish i didnt have to do that