NHTSA complaint #11668723

Owner complaint summary

I am reporting a spontaneous windshield crack that developed on my 2020 Tesla Model 3 Performance under normal operating conditions. After exiting a routine drive-through car wash in Las Vegas on a hot day, I noticed a hairline crack in the windshield. It originates from the very bottom edge within the black ceramic frit area, curves upward, and spans across the glass. There are no impact points, chips, or pits of any kind. I brought the vehicle to Tesla Service, where the Service Manager visually confirmed it is a stress crack not caused by external damage. Despite this, they stated that Tesla does not offer goodwill or warranty repairs for windshields, regardless of the nature of the failure. This raises a serious safety concern. A windshield is a structural component of the vehicle and critical for driver visibility. A spontaneous failure like this without external cause compromises safety, especially at highway speeds. There are numerous reports of similar spontaneous cracks in Tesla Model 3 vehicles, often originating from the same area. This suggests a potential systemic defect in the design, installation, or bonding of the windshield. I am requesting that the NHTSA investigate this issue for safety implications and possible structural design flaws.