Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL)...
Jeep technical service bulletin 1807623 for 2018 Jeep Grand Cherokee.
- Bulletin number
- 1807623
- Component
- Power train
- Summary
- Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P0441 - EVAP Purge System Performance. ? P0456 - EVAP System Small Leak. NOTE: If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. ? P06EF - Engine Restart Performance. This bulletin involves reprogramming the PCM with the latest available software.
Owners of these vehicles have filed 75 complaints in the transmission category.
Vehicles covered
- Jeep Grand Cherokee 2018 2018
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