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June 15, 2024 Service bulletin

"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp...

Jeep technical service bulletin 18-055-24 for 2024 Jeep Wagoneer and 2024 Jeep Grand Wagoneer.

Bulletin number
18-055-24
Component
Power train
Summary
"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. ● P0300-00 - Multiple Cylinder Misfire. Customers may also comment on one or more of the following: ● Fully Autonomous Parking Assist (FAPA) is not deactivated when accelerator pedal is pressed. ● Vehicle is not heating up fast enough at freezing temperatures. This bulletin involves reprogramming the PCM with the latest available software."

Owners of these vehicles have filed 15 complaints in the transmission category.

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