Infotainment Head Unit

It often controls vehicle settings too. Apple CarPlay and Android Auto run through it. It receives software updates. Updates can come from a USB stick, the dealer or over the air. A hard reset usually involves holding the power button for several seconds. Many settings, such as lights and locks, are stored in other modules and survive a head unit reset.

It processes input from the screen and controls and communicates with other modules.

Freezes are often fixed by a restart or update. Some faults drain the battery if it stays awake.