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April 9, 2025 Service bulletin

Flash: Transmission Control Module(TCM) Updates Customers may experience a Malfunction Indicator Lamp...

Jeep technical service bulletin 21-030-25 for 2024 Jeep Wagoneer and 2024 Jeep Grand Wagoneer.

Bulletin number
21-030-25
Component
Power train
Summary
"Flash: Transmission Control Module(TCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P0607-00 - ECU Internal Performance. Customers may also experience the following: ● Blinking shifter and the inability to shift out of Park, or a no crank con This bulletin involves reprogramming the TCM with the latest available software"

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

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