NHTSA Complaint #11590932 — 2024 VOLKSWAGEN JETTA

The small detached windshield above large windshield is defective and temperature sensitive. The vehicle was parked outside all day in hot Arizona ( extreme hot temps) and when we entered we put the ac on full blast. Within minutes with the car still in park. The glass exploded and shattered. Big pop sound almost like a gun shot. We looked outside and the upper windshield was cracked. I informed the dealership and manger said same thing happened to him while driving his Jetta. He thinks it was a rock. I disagree I think its defective and needs immediate action before injury occurs.