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Jeep TSB #21-027-21
2021 Jeep Grand Cherokee
TSB Document:
Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
- Summary
- Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set: P032F - Combustion Engine Producing Insufficient Torque. Customers may also experience a shift quality issue during a 5-4 downshift.
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