To activate the split-screen mode in Android Auto, you just have to connect your device to your car like normal.

1. On the Home screen, you should tap the Apps button on the bottom left corner of the screen.
2. Once you do this, there should be a multi-window button that will replace it in that same bottom left corner.
3. Pressing this will automatically switch the main display to split-screen mode.

If this button doesn’t appear, you will probably need to ensure the Android Auto app is fully up-to-date. Split screen is a relatively recent feature and you will need the latest version of the app if you want to take advantage of it. To ensure you have this, open the Google Play store and search for the Android Auto app. There should be an Update button that appears here if you do not already have the latest version. Once it’s finished updating, you should be able to easily turn split screen mode on and off. That’s all you need to do to enjoy Android Auto split screen — but you can still customize it further.