Technical Service Bulletin 08-127-25 REV. C — 2025 JEEP WAGONEER S

Flash: Electronic Vehicle Control Unit (EVCU) Updates 6B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● C10FA-00 - Wheel Hub disconnect Actuator Performance Left. ● C10FB-00 - Wheel Hub disconnect Actuator Performance Right. ● C10F8-00 - Left Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● C10F9-00 - Right Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● P061B-00 - Internal Control Module Torque Calculation Performance. Customers may also comment on one or more of the following: ● **Will not be able to start the vehicle. ● 12V battery dead resulting in no start. ● Loss of communication between EVCU and BPCM can prevent high-voltage contactors from closing, resulting in a no-start condition. ● Powershot sometimes stuck at 0 seconds remaining which makes customer believe that Powershot is not working. ● Remote start functionality fails when the vehicle is actively charging "Charge Now" feature in app - multiple issues. ● Sometimes fails and does not close contactors, sometimes starts but CPIM lights are not commanded by EVCU and sets B12B4. ● WED closure at zero speed in case of miss at normal close speed. ● Drive-by-brake HMI message update to IPC in case of Limp Home mode. ● DTC U0594 setting after pedal learn (applicable only for plant).** ● Instrument Panel Cluster (IPC), radio range and charge time estimations and messages are not correct. ● Battery range incorrect. ● Improved battery State of Charge (SoC) accuracy in off-nominal conditions. ● Battery heating values incorrect on radio when on Performance Pages display. ● Charging does not start when plugged in. ● Charging is not indicating when battery is at full charge. ● Charging slow or takes too long. ● Bumps and jerks while accelerating or decelerating. ● Wrench icon is illuminated on the IPC. ● Turtle icon is illuminated on the IPC. ● Vehicle enters into limp home mode. In addition, the following software enhancements are also available: ● **Drive-by-brake improvements and an issue resolved where the vehicle incorrectly enters turtle mode while driving. ● Closed loop 12V silent charging which can help mitigate the 12V drain issue on the vehicle.** ● Enables compatibility with the Flo V3 Chargers This bulletin involves reprogramming the IDCM, BPCM, MCP A, MCP B and the EVCU with the latest available software and then, if needed, performing a Wheel End Disconnect Position Learn routine.