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February 26, 2026 Service bulletin

Flash: Auxiliary Hybrid Control Processor (AHCP) / Customers must experience a Malfunction Indicator Lamp...

Chrysler technical service bulletin 08-080-26 for 2021 Chrysler Pacifica Plug-In Hybrid.

Bulletin number
08-080-26
Component
Electrical system
Summary
Flash: Auxiliary Hybrid Control Processor (AHCP) / Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0E15-00 - Hybrid-EV Battery Pack Coolant Heater A Control Performance. ● P29BB-00 - Hybrid-EV Battery Pack Coolant Heater A Control Performance. Customers may also comment on one or more of the following: ● Vehicle does not start / engine does not crank. ● Extended engine cranking time when starting the vehicle. ● Engine turns on when requesting cabin heat to turn on. ● Loss of heat from the engine. This bulletin involves reprogramming the AHCP and then the HCP with the latest available software.

Owners of these vehicles have filed 13 complaints in the electrical category.

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