Rain Sensing Wiper Issue

[HeavyG]

I've had a couple of occasions when the windshield wiper in Auto mode went off in the absence of rain:

1) Apparently enough bugs hitting by the sensor can cause the wipers to sweep a few times.

2) If you're following close enough, a driver ahead of you may hit hit their washer switch. Some of the overspray can carry over enough to hit your windshield and cause the wipers to sweep.

 

[guitarbruce1]

In my there is little bite same issue. The manual mist, low and high settings work fine, but when the wipers are set to 'auto', the wipers never come on at all.

This is the problem with my Genesis. I took it to a Hyundai dealership and they sprayed the windshield with a water bottle until the wipers activated. But the auto wipers don't work in regular rain or snow.