Hi- when it rains heavily one or both of my blinkers will not turn off. It doesn’t stop until car dries up. The dampness is always in the very back area of the trunk. We have brought to dealership and they can’t find a leak. Any suggestions? Currently no other problems with car.

 

I have the same problem with my 2014 when washed with a power washer, it is at the dealer now and so far they have identified a leak in a newly replaced non OEM windshield which is shorting out some wires related to the right turn signal, BSM and power folding mirrors, they said they will reseal the windshield and we will see if that solves the problem????

 

Check and clear out the front and rear sunroof drains. A clogged sunroof drain is a frequent cause of such leaks. The front ones are easy to access from the sunroof as they are in the front corners and there are many YouTube videos showing how to clear them with weed Wacker line. They are the same on every car.

The rear ones are harder to get at as you must remove the side panel in the hatch area and pull apart the drain hose as it cannot be reached from above.
https://www.clublexus.com/forums/rx-...ain-tubes.html

​​​​​​https://www.clublexus.com/forums/rx-...ved-maybe.html

​​​​​​https://www.clublexus.com/forums/rx-...ring-tool.html

https://www.clublexus.com/forums/rx-...ater-leak.html

 

^^ This. And stay away from the idiots at the dealership. They should be well aware of clogged sunroof drain issues and how to clear them.

 

Thanks - and this could cause water or dampness all the way in the back of the trunk?

 

Yes. The rear drains are a major cause of water in the trunk as the rear sunroof drain hoses pass through the side panels and when they leak it gets the back of the trunk wet. Read some of the threads linked above and see the photos.