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Jeep TSB #18-057-17
2017 Jeep Grand Cherokee
TSB Document:
Affected Component: POWER TRAIN
- Summary
- Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The following software enhancements are available:Allow the throttle body to be cycled while the engine is off, for diagnostic purposes. Improved vehicle acceleration at low speed while towing. Allows transmission gear shifting while in limp-in mode, rather than a fixed gear.
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