Sunroof burst while driving on freeway at a low speed due to heavy traffic. There were no overpasses or bridges above the vehicle when explosion was heard. No point of impact on sunroof from possible rocks and glass is shattered but in one piece and it appears to have burst outwards as it-??s bowing upwards. Sunroof had rarely ever been used prior to this and vehicle is only 1 year old. Only some tiny pieces of glass came off initially, but headliner collected them instead of landing on driver/passenger while driving.

- Modesto, CA, USA