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Water leak passenger and driver side, wet carpet

42739 Views 18 Replies 17 Participants Last post by  PietroJaye
Our 2009 Sienna LE passenger side and driver side carpet are both soaked - with the passenger side wetter.

This has happened twice already - San Francisco bay area gets rain mostly in winter months.
The first time, I thought it must have been my fault: not closing the window.
But this time, I am pretty sure it is not the window.

-The leak is water, no sweet smell etc. The heater is working.
-We hardly used A/C, heater. Checked A/C drainage pipe from below, it was not blocked.
-There is no moonroof
-Windshield is factory (it is a 2009 model after all) :)

Is this kind of problem covered by warranty?

For the convenience of search, here are threads I have found regarding wet carpet issue:
* Water leaking into passenger side =>,301.0.html
* Front carpet wet =>,1247.0.html
* Sienna Front water leak =>,761.0.html
1 - 1 of 19 Posts
I have a Sienna 2001.
I've had the wet floor carpets for almost 2 years.
I have checked and rechecked all the doors rubber seals (weather stripping). There isn't a no sunroof.
I almost yanked out all the side plastic boards.
I just found the source of the leak last Sunday.
The REAR LIGHT (red) above the rear windshield had faulty rubber seals. The seals soaks water and allows water to drip into the inner boot lining. The water this seeps through the boot panel and flows under the carpet in the boot. With heavy rainfall/water it soaks the underlay and gets up the driver and front passenger foot-well.
I couldnt get a repalcement seal on a Sunday, I had to create a "gasket" replacement froma rubber carpet for the light assembly and ensured I screwed it on tight.
I yanked out the upper (inner) plastic of the boot door and the dripping I noticed earlier stopped when I poured water on the light assembly.
I hope this helps. View attachment 5538
Glad to hear that you found the leak.
1 - 1 of 19 Posts
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