JEEP
08-359-25
Manufacturer communications
- Publication date
- 2025-10-28
- Received by NHTSA
- 2025-11-05
- NHTSA record numbers
- 11025016
Manufacturer summary
Original wording in English
Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set in the Hybrid Control Processor (HCP) module:
• P16F0-00 - SPI Comm Hardware Fault. Customers may also comment on one or more of the following:
• **Low/weak 12V battery or a no start condition due to voltage being under 10.5V.
• Unable to charge vehicle while key is off.**
• Shifts rough occasionally when coming down to a stop.
• Shifts rough occasionally when accelerating.
• Shifts rough when transitioning from EV to Hybrid operation on low SoC.
• Shifts rough when engines starts.
• On part throttle accelerations with little to no battery available the transition from battery power to engine on is harsh and abrupt.
• The engine oil life on dashboard drops down too fast when the engine oil dilution reaches high level without the ability to recover.
• P16F0-00 - SPI Comm Hardware Fault. Customers may also comment on one or more of the following:
• **Low/weak 12V battery or a no start condition due to voltage being under 10.5V.
• Unable to charge vehicle while key is off.**
• Shifts rough occasionally when coming down to a stop.
• Shifts rough occasionally when accelerating.
• Shifts rough when transitioning from EV to Hybrid operation on low SoC.
• Shifts rough when engines starts.
• On part throttle accelerations with little to no battery available the transition from battery power to engine on is harsh and abrupt.
• The engine oil life on dashboard drops down too fast when the engine oil dilution reaches high level without the ability to recover.
Reported code forms
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| Make | Model | Model year |
|---|---|---|
| Jeep | GRAND CHEROKEE 4XE | 2023 |