Toyota and Lexus Firmware 352L1000.cuw

352L1000.cuw is a Toyota or Lexus firmware catalog identifier. The complete calibration code distinguishes this entry from files with similar prefixes, but the identifier alone does not reliably establish which control module or vehicle system it serves.

The .cuw extension identifies the catalog file, while 352L1000 is the calibration identifier. No vehicle application, controller designation, variant label, or service bulletin is associated with this entry in the available information, so a specific operating function or revision change cannot be established.