---
title: shutdown
framework: avfoundation
role: symbol
role_heading: Type Property
path: avfoundation/avcapturedevice/systempressurestate-swift.class/level-swift.struct/shutdown
---

# shutdown

System pressure is beyond critical, so the capture system has shut down.

## Declaration

```swift
static let shutdown: AVCaptureDevice.SystemPressureState.Level
```

## Discussion

Discussion When system pressure reaches this level, the capture system automatically shuts down, causing a session interruption. Use the AVCaptureSessionInterruptionSystemPressureStateKey in the interruption notification’s userInfo dictionary to find details about the system pressure factors causing the interruption.

## See Also

### System pressure levels

- [nominal](avfoundation/avcapturedevice/systempressurestate-swift.class/level-swift.struct/nominal.md)
- [fair](avfoundation/avcapturedevice/systempressurestate-swift.class/level-swift.struct/fair.md)
- [serious](avfoundation/avcapturedevice/systempressurestate-swift.class/level-swift.struct/serious.md)
- [critical](avfoundation/avcapturedevice/systempressurestate-swift.class/level-swift.struct/critical.md)