GeoNX

I used to have the same issue. I contacted Lexus customer relations about this and was advised that there would be an update that would fix this (referring to the OTA update last December). It has been now a month since I installed the OTA update and that message/window has not appeared again whereas I used to get this message every 3-5 days before the update. Btw, hitting continue and entering the password did not cause any further issues in my case and would make the message disappear, however, the message would return after 3-5 days.

Had the same problem with headlamp washers stuck open, I noticed the issue after a 30 min roundtrip this morning. I called my Lexus service centre and it was explained to me that this happens because of pressure build up due to the low temperatures; they said there are no actual electric motor operating the washers, it apparently works with pressure, and that I was the fourth person calling about this issue. I wasn't initially happy with their response suggesting that this is normal during cold weather. The washers slowly retracted after 1-2 hours on their own, at least it seems they don't stay up permanently during cold weather, still not a great design in my opinion, or maybe just a wrong choice of screenwash as suggested here. Interestingly it appears that my washers retracted as the car was cooling down after the journey, so I am totally confused about the cause/effect relationship here.