You can remove the rain sensor module from the windshield bracket, wearing latex rubber gloves, hold the moisture sensor in the left or right hand, release the 3 clips securing the lens to the sensor, discard the old moisture sensor lens, remove the old conductive jell residue from the windshield mounting bracket, clean the area of the windshield, align and secure the two sensor halves back as one unit, remove the plastic protective covering from the lens, position and install the moisture sensor back onto the windshield bracket, connect the electrical cover and secure the rain sensor module trim cover.