Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) Updates Customers must...

Bulletin number

08-212-25

Component

Electrical system

Summary

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.

Owners of these vehicles have filed 9 complaints in the electrical category.