I discussed this with the dealer during my 7500 mile checkup. I felt like they were putting some dealer doublespeak on me, to tell the truth. They told me that the sensors were fine but it was giving the warning because I was also too close to the lane line on the road.
I don't think so. The lane departure system shows a different picture entirely when it goes off, but, what could I say? I can't make it do it on command.
Since I've had the car, actually, the issue with rain sensitivity seems to be lessening. However, it occasionally gives me a collision warning when I'm sitting still in traffic, which is weird.
The dealer did point out that there are four proximity sensors in the front bumper (somehow I had overlooked two) and said they should be kept clean, which is undoubtedly good advice.
But overall, no progress on this front. (Ha, got me a pun in there, at least!)
2016 V8 VIP+, black with white interior