08-212-25

Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) 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):
• P0BBD - Hybrid Battery Pack Voltage Variation Exceeded Limit.
• P0B24 - Hybrid Battery 'A' Voltage Unstable.
• P1CEA - Boost Side Evap Purge System Performance
• P04B5 - Fuel Fill Door Stuck Open. Customers may experience one or more of the following:
• Vehicle Will Not start/shift out of park.
• Service Charging System message.
• Battery degradation.
• Reduced fuel efficiency.
• Rough idling or engine misfires.
• Inconsistent or erratic performance.
• Warning lights on the dashboard (e.g., hybrid system warning light) This bulletin involves reprogramming the HCP/AHCP, also known as Power Inverter Module (PIM), with the latest available software.