Chrysler Pacifica Plug-In Hybrid 2021 — technical service bulletin
Bulletin 08-253-24 · NHTSA communication 11011916 · issued Dec 13, 2024
Technical service bulletin
communication type
Electrical System
component
2021
model years
1
vehicle entries
Official 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): ● **P0A78 - Drive Motor A Inverter Performance. ● P0A79 - Drive Motor B Inverter Performance.** ● P0A33 - Drive Motor B Temperature Sensor 1 Circuit High. ● P0A2D - Sensor Power Supply 1 Circuit High ● P215B - Vehicle Speed Output Shaft Speed Correlation. ● P0C4A - Drive Motor A Inverter Over Temperature. ● P0E15 - Hybrid-Ev Battery Pac
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.