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May 13, 2026 Service bulletin

PHEV Engine Replacement XC2 Warranty Extension Customers must experience a Malfunction Indicator Lamp...

Jeep technical service bulletin 09-009-26 for 2023-2025 Jeep Grand Cherokee, 2024-2025 Jeep Wrangler and 2023-2025 Jeep Grand Cherokee L and others.

Bulletin number
09-009-26
Component
Engine
Summary
PHEV Engine Replacement XC2 Warranty Extension 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): ● P2336 - Cylinder 1 Above Knock/Combustion Vibration Sensor Threshold. ● P2337 - Cylinder 2 Above Knock/Combustion Vibration Sensor Threshold. ● P2338 - Cylinder 3 Above Knock/Combustion Vibration Sensor Threshold. ● P2339 - Cylinder 4 Above Knock/Combustion Vibration Sensor Threshold. The customer may also describe the following: ● A knocking noise from the engine compartment This bulletin involves replacing the engine.

Owners of these vehicles have filed 863 complaints in the engine category.

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