Rain Sensing Wipers Issue

[EaseOnDownTheRoad]

Have a 23 and every now and then, when it's bone dry on the windshield the wipers sweeps 1x. Not a random drop of water on the windshield. I've had rain sensing wipers on other vehicles for over 15 years and this is not normal. Not often and not the end of the world but odd--but more often than I'd expect. Anyone have this issue?

 

[bruesjoh04]

Have a 23 and every now and then, when it's bone dry on the windshield the wipers sweeps 1x. Not a random drop of water on the windshield. I've had rain sensing wipers on other vehicles for over 15 years and this is not normal. Not often and not the end of the world but odd--but more often than I'd expect. Anyone have this issue?

There can sometimes be false positives when there are sharp changes in light hitting the sensor (like maybe coming out from an underpass into direct sun, for example). Best practice is to turn the wipers to “off” when it isn’t actually or potentially raining.

The main function of the auto wipers is to modulate the speed of the wipers when it’s raining.

 

[Navin_Johnson]

I've had the car in front of me use their windshield washers to clean their windshield, and just a minute amount of moisture flew through the airstream and initiated my auto wipers. I couldn't even see any spray on my glass, but I saw the spray in the air coming over his roof, so I knew what caused it.