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February 2, 2026 Service bulletin

Fuel filler tube lower seal is leaking and DTC P0456 is stored in the ECM if you confirm

Infiniti technical service bulletin ITB26-002 for 2022-2026 Infiniti QX60 and 2025-2026 Infiniti QX80.

Bulletin number
ITB26-002
Component
Fuel/propulsion system
Summary
FUEL FILLER TUBE LOWER SEAL IS LEAKING AND DTC P0456 IS STORED IN THE ECM IF YOU CONFIRM The vehicle has a visible leak with a smoke machine test coming from the fuel filler tube lower seal, AND DTC P0456 is stored as “Active”, “Past”, or “Pending” in the ECM. ACTION 1. Remove the supplied funnel from the rear of the vehicle or trunk. 2. Insert the funnel completely in the fuel filler tube and remove completely five (5) times. 3. Re-check the fuel filler tube lower seal with a smoke machine to determine visually if any leak is present. 4. If the fuel filler lower seal continues to leak, replace the fuel filler tube. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.

Owners of these vehicles have filed 10 complaints in the fuel system category.

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