I bought a brand new 2019 es350 ultra luxury, Nov 2019. I've had issues with front sensors, every time it rains. Says they need to be cleaned. I've had them replaced multiple times and it didn't fix the issue. Anyone else have this issue?

 

I haven’t but since you’ve had them replaced I would think that you have an issue with the computer they are attached to in order to give you warnings. Did a dealer replace them?

 

Yes, dealer replaced twice. They recalibrated as well. It only happens when it rains a lot or when roads are really slushy from snow. It once did it after a automatic car wash.

 

It's normal in heavy rain or when snow sticks to them, read about it on this thread.

https://www.clublexus.com/forums/rx-...e-in-rain.html

 

I have used a Ceramic coating on the whole car and made sure to treat the sensors.
Did this early in our ownership so cannot compare to untreated but the rain/sleet effect is rare.
We do get the warning when reversing and I have used Rain-X on the camera lens but that does
not appear to be effective.