On two separate occasions, I have had the front driver's door window glass and the front passenger door window glass crack on interstate 40. This has been while exiting the bridge eastbound at the exit for interstate 74 to high point. There is an odd bump exiting the bridge in the lefthand lane. In both instances, the glass has had to be replaced. Safelite auto glass has stated that the glass appears to be inferior in nature and should not crack. The vehicle has less than 5,000 miles on it so doesn't have any unnecessary wear and tear.

- Pleasant Garden, NC, USA