Upgrading / Modifying / Fixing

How to guides on how to upgrade your Tesla.

Upgrading / Modifying / Fixing

What’s an MCU? Which MCU do I have? What’s the difference between MCU & FSD? Why does my car not get the latest software features? How do I speed up my MCU?

MCU stands for Media Control Unit, it’s the main computer in Tesla Model S and X vehicles and includes the touchscreen, processors (brain), RAM (short term memory), non-volatile memory (longterm memory), the audio subsystem, 5 amplifiers, WiFi, Cellular, Bluetooth, GPS, the Ethernet bridge, multiple CAN bus communications, the LIN

By Ruben Arakelyan