The previous batch's infotainment language complaint result is reference material only, and this batch still has to be checked against real documents. The order description, the system version, and the available languages should share one version baseline; when an update appears, keep the earlier version and explain the change. A promise of switchable language without a functional test is an explicit hold point, so do not continue payment or delivery before the correction and review are complete. The cross-check method for the adjacent files is collected in this vehicle import practice Q&A. Record the outcome of the infotainment language complaint.