---
title: thumbnail
framework: carplay
role: symbol
role_heading: Instance Property
path: carplay/cplisttemplatedetailsheader/thumbnail
---

# thumbnail

The thumbnail image displayed in the header.

## Declaration

```swift
var thumbnail: CPThumbnailImage { get set }
```

## Discussion

Discussion This property represents the primary visual content of the header. The thumbnail may include image overlays, playback progress indicators, or sports overlays depending on the content type.