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Jeep TSB #21-009-17 REV. A
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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