My toddler noticed this in my Model 3 while driving today. The car has been a 100% garaged while at home and it is parked in a covered parking structure while at work. I remember reading stories of some early Model 3's developing stress-cracks, but more isolated than widespread as far as I can tell. Doesn't look like a chip from road debris - and for a crack that size, I ought to have heard the impact, plus I think a rock would've left a different impact pattern. Can't feel the crack from inside the car, I guess the glass is double paned. Any idea of what may have caused this? Anyone feel it's big enough that I should not drive the vehicle around till service appt (Tuesday AM)? Forecast looks clear. Thanks in advance! Tesla service rep I talked to in the morning guessed that Tesla would replace the section after taking a look at my pictures, if it's indeed a defect. Sent an email message for Tesla Service in Marietta with pictures this morning; waiting to hear back (they said they'd follow up). I haven't heard back yet so I scheduled a service appt using my online dashboard because it rains pretty heavily in Aug. in Georgia and I'd hate for this crack to widen if left unattended. Other than that, the only other issue I've spotted in the last 3 months of ownership is the daytime running lights on the passenger's side not being as bright as on the driver's side. Will bring that up when I take it in on Tuesday.