How to Use this Service Information: Nomenclature

Tesla attempts to present a coherent style to its documentation, however the naming of vehicle components, systems, and tools within this document may not be consistent with industry standards, may vary from procedure to procedure, and differ across vehicle lines. For example, the automotive industry uses the term "calibration" to identify the code stored and executed within an ECU, PCM, or module. For Tesla MCUs, Car Computers, ECUs and modules, the equivalent term is "firmware" or "software", which are synonymous and might be used interchangeably.