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November 19, 2016 Service bulletin

Flash: Transmission Drivability And Shift Enhancements

Ram technical service bulletin 21-037-16 for 2017 Ram Promaster City.

Bulletin number
21-037-16
Component
Power train: automatic transmission: control module (TCM/PCM/tecm)
Summary
Flash: Transmission Drivability And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. This software update works in conjunction with the Powertrain Control Module (PCM) software update. The changes to the transmission software are necessary although the changes will not be noticed by the customer.

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