NHTSA Complaint #11511415 — 2022 VOLVO XC40

Resubmitting as not sure if last submission was received... We recently noticed a strange crack developing in the front panel of the sunroof of the car. The cracks are very linear in nature, and there is no signs of a impact point and no "spiderwebbing" type cracks apparent. When I researched online, I was surprised to see a large number of other Volvo XC40 Owners that had the same issue, with the same type of hairline cracking in the same location on the same sunroof panel (see "https://www.xc40forum.com/threads/crack-in-panoramic-sunroof.2403/page-3" for examples). In each instance, no other damage or evidence of a strike is reported on the vehicle to any surface or glass. All respondants say that Volvo asks you to bring the car in and then quickly states they believe it is caused by a rock strike, not a manufacturer problem. I personally tried to help the service tech I spoke with understand the improbability of that claim, (i.e. that the cause was something dropping straight down from the sky to that it could hit impact the direct top of the vehicle with enough speed to crack the glass, but slow enough to not ever create any spider webbing in the same general area of the same panel of glass on multiple like vehicles of the same model without leaving any trace on any other surface in multiple geographies). I believe the issue to either be something structural causing a stress fracturing, or subpar glass used in the panel (since other panels on this car and other cars are not experiencing the issue). My concern and reason for reporting is that it appears the issue is growing in incidents reported, and if this panel breaks while someone is driving the results to themselves and others on the road could be a huge safety concern.