Toyota and Lexus Firmware T-0055-16.cuw

T-0055-16.cuw is a Toyota or Lexus firmware file identifier. The complete identifier distinguishes this entry from other similarly named files, but it does not reliably establish a specific vehicle, control module, or software function on its own.

The .cuw extension identifies the catalog file format. It does not by itself show what the software controls or whether this particular file is a stock or modified calibration.