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Jeep TSB #1800721REVA
2021 Jeep Grand Cherokee
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- Summary
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may comment on the following conditions: The RPM gauge in the center cluster is inoperative (International Markets Only). Poor air conditioning performance. Air conditioning compressor will not stop cycling and the evaporator freezes up.
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