TSB Document:

Affected Component: ELECTRICAL SYSTEM

Summary
Flash: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Customers may experience the following condition:During an engine limp mode condition, the transmission remains in a fixed gear. The following software update is included:Allow transmission gear shifting in the limp-in mode rather than fixed gear.

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Date Published
JUN 08, 2017
NHTSA TSB #
10219879
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