NHTSA Complaint #11453165 — 2022 MAZDA CX-5

The sunroof exploded while driving 70mph on a rural highway. There were no other cars nearby that could have kicked up a rock nor anything that could have fallen on the sunroof. The window buckled outward, not inward. The glass shattered and flew everywhere endangering the driver, passengers, and the car behind me when the window exploded. There was no warning, just a loud boom when the window gave way. My best guess is that this resulted from temperature fluctuation. I was at about 10,000 ft altitude. It froze overnight. The temperature when the window exploded was about 40 degrees, but the sun was out and strong. There was only about a 2,000 ft change in altitude while driving. I can’t imagine that the car seals well enough for the pressure change due to altitude to cause the window to burst, but that would be my second best guess, though a couple thousand feet shouldn’t have cause that big of a pressure change.