CHRYSLER
08-086-26
Manufacturer communications
- Publication date
- 2026-02-28
- Received by NHTSA
- 2026-03-05
- NHTSA record numbers
- 11029751
Manufacturer summary
Original wording in English
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.
• Loss of heat from the engine. This bulletin involves reprogramming the AHCP and then the HCP with the latest available software.
• 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.
• Loss of heat from the engine. This bulletin involves reprogramming the AHCP and then the HCP with the latest available software.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Chrysler
P0E15-00Hybrid-EV Battery Pack Coolant Heater A Control PerformanceChrysler
P29BB-00Hybrid-EV Battery Pack Coolant Heater A Control PerformanceCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Chrysler | PACIFICA PLUG-IN HYBRID | 2023 |