I have to say coming from Jeep/RAM and theirs always works great...not having this on my New fully loaded 2021 Sierra 1500 AT4 was a shock. It's funny what we get used too, but I'd gladly live without lane sensing over Rain Sensing. Perhaps they need to talk with other manufactures on getting the design/technology right and reincorporate this as I would think twice if I did not have this for future purchase/lease etc...