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October 17, 2026 Service bulletin

Engine Coolant Leak The

Jeep technical service bulletin 09-027-26 for 2026-2027 Jeep Grand Cherokee and 2026-2027 Jeep Grand Cherokee L.

Bulletin number
09-027-26
Component
Engine
Summary
Engine Coolant Leak The customer may comment on the following: SYMPTOM: ● There is an external coolant leak near the exhaust side of the engine block. This bulletin involves performing a drive cycle of at least 40 miles (64 km) to verify the presence of a coolant leak. At the completion of the drive cycle, the vehicle odometer must not exceed 60 miles (97 km). If a coolant leak is confirmed, diagnose the source of the leak and perform the necessary repairs as required

Owners of these vehicles have filed 46 complaints in the engine category.

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