Windshield sensor?

[irishwake63]

This ^
Same on my truck as well. Adding rain sensing wipers soon and will have to change out this sensor to the combo sensor. (rain/humidity)

question how would a humidity sensor sense humidity sealed up behind glass?

 

[Ratchet]

question how would a humidity sensor sense humidity sealed up behind glass?

It's not checking for moisture content physically on the glass. That's a rain sensors job. The humidity sensor is measuring relative humidity inside of the cabin so the HVAC can regulate fresh air to minimalize fogging of the windshield.

And Mopar is very proud of them as well. 2011-2023 Mopar Humidity Sensor 68440808AA | Mopar Estores