08-127-25 REV. C

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.