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May 30, 2025 Service bulletin

"Motor Generator Unit (MGU) Replacement Customers must experience a Malfunction Indicator Lamp (MIL)...

Jeep technical service bulletin 08-178-25 for 2023-2024 Jeep Wrangler and 2023-2024 Jeep Grand Cherokee 4xe.

Bulletin number
08-178-25
Component
Electrical system
Summary
"Motor Generator Unit (MGU) Replacement Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician must find the following Diagnostic Trouble Code (DTC) has been set: ● P1B0F-00 - Drive Motor A Position Sensor Offset Incorrect. Customers may also experience one or more of the following: ● Vehicle goes into limp home mode. ● Vehicle does not start. This bulletin involves inspecting the MGU serial number and possibly replacing the MGU as needed."

Owners of these vehicles have filed 687 complaints in the electrical category.

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