The rear windshield completely shattered after getting in the vehicle and shutting the drivers side door. The vehicle was off and not in motion. There were no warnings, or other symptoms or any other indicators that this was a faulty windshield. The weather has been below freezing for the last 4 days. The problem has not been confirmed or reproduced nor inspected as this just happened and was unexpected. Thankfully the vehicle was off, however this could have impacted my safety and those around me if I had been driving.