How To Use This Service Information: Nomenclature
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2020 Tesla Model S, 2019 Tesla Model S, 2018 Tesla Model S, 2017 Tesla Model S, and 2016 Tesla Model S. However, it is still accessible from the selected car via links, so may be relevant.
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.