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Jeep TSB #21-009-17
2017 Jeep Grand Cherokee
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. Some customers may experience the following condition: · During an engine limp mode condition, the transmission remains in a fixed gear. The following software enhancement is also available: · Transmission shift quality enhancement.
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