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Transmission Adaptive Functions

Transmission Adaptive Functions

General

If the automatic transmission or Transmission Control Module (TCM) is replaced, the Transmission Control Module (TCM) software is overwritten and the basic settings must be reset. This shall be done during a long test-drive when the automatic transmission is warm by shifting between all gears several times while "D" is engaged. After test-driving it is possible that the TCM-module is not completely done with the run-in process. Thus, the customer must be informed that until the running-in process is complete, the transmission may not change gears or operate optimally. Until the running-in process is complete, there could be hard, jerky gearchanges, increased engine speed during gearchanges and delayed gearchanges.