Got a rock chip on my 3 month old '17 LC during a round trip between the Bay Area and Portland. Was a small divit in the top driver side part of the windshield. 1.5 months later it suddenly begins to show a 20" long hairline crack across the driver side. Good thing I changed my comprehensive coverage to a $0 deductible (cost me $10 more every 6 months). I go to have it done at Techna Glass and they were great. They got the OEM glass from the dealership ($900 and change for glass and gasket + labor for a grand total of ~$1200). I got a good look at it and there was a wire dongle hanging off the bottom of the windshield that I believe plugs into the head unit for the Lane Departure system, radar cruise, and other sensors. The other thing that I wasn't prepared for was that the system has to be recalibrated at the dealership ($130-180). So after I get the windshield replaced I had to drop it off at the dealership for them to calibrate it. It is going to take them longer then expected so the gave me a RAV4 loaner for the night. I would hate to have an Audi Q7, Volvo XC90, or Tesla with all the autonomous features cause the calibration on those probably takes 2-3x longer. Bottom line is I wouldn't trust anything but OEM glass. Went with cheap glass on my '99 Trooper and it didn't last a winter before it went, also you could see imperfections in the glass.