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November 30, 2016 Service bulletin

Flash: Transmission Diagnostic And Shift Enhancements

Jeep technical service bulletin 21-014-16 REV. A for 2016 Jeep Cherokee.

Bulletin number
21-014-16 REV. A
Component
Power train: automatic transmission: control module (TCM/PCM/tecm)
Summary
Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Some customers may experience one of the following: A less than desirable upshift in the transmission. Unwanted activation of second gear start while in winter mode.The following software enhancement is included in this update: Disable winter mode second gear launch (improve low traction launch).

Owners of these vehicles have filed 638 complaints in the transmission category.

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