Toyota and Lexus Firmware L-0021-16.cuw

L-0021-16.cuw is a Toyota or Lexus firmware catalog identifier. The identifier alone does not reliably establish which control module or vehicle system it belongs to, what software it controls, or which vehicles it fits.

The complete code distinguishes this entry from similarly named firmware records. A matching prefix by itself is not enough to establish the controller family or the function of this particular revision.