Headers help drivers understand which app and what part of the app they're
using. They need to be brief and easy to read at a glance while on the road.
Headers must include at least one of the following: text, app icon, or back
button.

**Headers can include:**

- Icon or image (optional), such as app icon
- Text (limited to one line -- longer text is truncated), typically the title of the screen
- Refresh button (only on [Place List templates](https://developer.android.com/design/ui/cars/guides/templates/place-list-map-template))
- Back [button](https://developer.android.com/design/ui/cars/guides/components/button) (optional)

This example shows different types of headers you can create.
![4 examples of headers](https://developer.android.com/static/images/design/ui/cars/components/headers.png) This example shows different types of headers you can create.

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## Expanded header (section item template)

> [!NOTE]
> **Note:** Expanded header is only supported in Sectioned Item template.

Expanded headers on Sectioned Item templates support rich layouts beyond basic
title bars. Use expanded headers to:

- Add images that collapse on scroll
- Display secondary actions

![Examples of expanded headers with images and secondary actions.](https://developer.android.com/static/images/design/ui/cars/components/headers-2.png) Examples of expanded headers with images and secondary actions.